Spare parts BIHL+WIEDEMANN BW2222

GEMU695 40D59401712/N SF2

GEMU882144511230000ZA101031101101

LEUZEKA 905 50016439

MAYSERSG-EFS 104/4 L 24 V AC/DC

TRCEV65M-50034 replacement

EBRO ARMATURENZ011-A DN200 DISC:1.4408 SHAFT:1.4104 LINER:NBR PS:10BAR

VECTORVN1630A

AUERMAXOS 150X20MM is valid for the entire order

AUERMAXOS 200X25MM

STRINGRK86 DN 65 HDA3

Spare parts BIHL+WIEDEMANN BW2222

Spare parts BIHL+WIEDEMANN BW2222

MOTRONAFU210

SCHMERSALEX-13-TFP

VECTORGL1000

PIMATIC3131-70-45386

HELANTECHELOX 4 (including battery and calibration device)

HARTING09380182701

DELTADOP-107WV

Steel220903 6001/542-9510-15 is valid for the entire order

Steel220897 6001/522-9510-15-131

Steel225723 6009/522-9617-1611-71

JAQUETDSD 1820.20 P1HWR

OMRONS8VK-G06024

OMRONE2B-M12KS04-M1-B1

OMRONE3Z-LS86

OMRONH7BX-AD1

BUHLER3425030 BWT B25X030

GEMU88668732 615 12D 1375411/N

ROEMHELD1896333 VMM36

BUEHLER3425030 BWT B25X030

OMRONE3Z-T86A

OMRONE3Z-R86

VECTORVH6501

VECTORVN5640

GROSCHOPPWK11788501

HEINZHTSG108-12-H75-210-SO-RH

ROEMHELD1896333 VMM36

COFITRS1020/29

TR-SYSTEMSSPCP-AMD-S7/416-PBX-P-OS5-K V999 replacement

TR-SYSTEMSSPCP-C0600-S7/4 16-PE-P-OS3-K

BRINKMANNFH427A69-FZ+680

EDURAlternative: 28377, LBU 403 C120L/BG112

SCHUBERT&SALZER8044 DN20 PN40 24VDC

SCHUBERT&SALZER7020 DN15PN40 24VDC

ERICO569040

ERICO569160

DEMAG77330033

COSTYRKA5350.030.058

VOITHAV500.HVR520 701L

VERIBORBO 602.2G replacement

NORDSONSA17F29701

BUSSMANN170L8273 2000 V/350 A Pay attention to the quantity

BONFIGLIOLIW 75 UF1 D30 20 P80 B14 B3

BUSSMANNPS202PREMCPS，125A，IEC1500V

JAQUETDSF1210.00

MAXON245090

BUSSMANN170L8273 2000 V/350 A Pay attention to the quantity

WAMPFLER081509-0141

HYTORC31041400

HYTORC31090995

TRACOTCL 060-112

HEBZ100-110-32/16/300,00-211/B1/S8.

CARL REHFUSSNR 633897

SAUTER106152

HYTORC31042610

HYTORC31090259

HYTORC31090520

HYTORC31090257

HYTORC31090785

GEFRANPZ-34-A-250 0000X000X00

STOBERMDS5040/L AC380

FISCHER018 has been discontinued, replaced by 06 FC EPDM D25, ARTICLE NO. 161 614 013

DOPAG401.23.00

JOKEFLEX0544521 (unit price is for one pack, 25 pieces per pack)

ROSENBERGB10-31540, ERAD 315-4.6HF S

SAHLBERG100049 N.Z.: 80024373

BIRKENBEUL8APE90S-4 IE3 replacement

HYTORC31090159

HYTORC33141900

HYTORC33140000

HYTORC49001421

HYTORC49000820

INELTA508573 IMA 2 - LVDT 2,5B 24V 4-20MA

BUCHERSWUVPLD-1CO-35-AT-F-10 24D

PYRINDUSTWTU012446+K-2-30.AISI446/710

TRELLEBORGWE3202200-T46V

APUISSANCE3NAEV30-DI4N-C024-0

GEMU99124465 R677 32D7871290 FD A43R (Please note: membrane number 14 has been discontinued and replaced by membrane number 29)

SOFIMACRC240FD1

KISTLER9031A discontinued, successor model: 18037347 9031C

GEMU88525582 610 15D 7 1 411RN

GEMU88044935 554 40D 1 9 51 1

GEMU88044933 554 25D 1 9 51 1

VERDER819.5149

VERDER817.0035

VERDER810.6772

Steel245656 8040/11-V30-033-S

Steel224646 8118/132-542-0

SQUARE D7S67F

SQUARE D2S67F

TRELLEBORGPT0402500-T46V

JOKEFLEXΦ6/10X85 80 0544521

OTT9510313492

OTT9510313592

SQUARE D1S67F

SQUARE D3S67F

VERDER810.5903

STEIMELTFL 10-240 KRDG

CREATIVE3191284700001

OTT9510313692

OTT9560006992

OTT9560007092

OTT9560007192

OTT9560007292

OTT9560007392

OTT9510158492

OTT9510158892

OTT9510159692

OLEODINAMICASH-160/70 M75 CPF NA S

OLEODINAMICASH-100/45 M100CPS NA S

OLEODINAMICASH-63/45 F70 RAP-S PU

VERDER818.0015

ZIEHL-ABEGGPR264.4C5.CB. MR

SCHIEDRUM30D-2.5-3H

DESTACOM601RDM4H24-330

HBMT10S3(FCC ID:2ADAT-T10S2TOS6)

DANFOSSH1-B-160-A-A-HE-N-B-TA-DN-KN-N-NN-NN-108-Z-00-NNN

PHOENIXBR 1 B 04

REMA820206 Serial PAIL+A190746 is valid for the entire order

REMA940206+A1094027

ROSE00010818060

HAUG233V3

RITTALThe unit price of TS8800.020 is for one package, with four pieces per package

SCHUNK0304363 DPG-PLUS 200-1-AS

BURKERT00131421

GEMU88029063 1252000Z00000

OLEODINAMICASH-40/28 F50 RA NA PU

BECKHOFFCP2715-0010

BECKHOFFCP2716-0010

VALPRES700000 3 / 8 "inox.

NORISRQ144-014-#0007

H+LWY150-6P124-4XA1

DEMAGD-PRO-2-250-1-1-H5

POLARTECTIONPC03-3/4

ZIMMERMKS2502K

JOKEFLEX0544521 (unit price is for one pack, 25 pieces per pack)

SSZSSZ-CVS/N/3/230/24

ATOSDPZ 0 -ee- 071 -d 3 10 A

HAUGA976-0127-MINI-PTFE

DIEBOLD76.703.140

DIEBOLD76.750.240

OMROND4SL-N2BFA

OMROND4SL-NK1

OMRONS8VK-T24024

OMRONS8VK-G12024

OMRONE3Z-GP11B 3M

VECTORKEYMAN

VECTORtraining

G.BEEETWDADDAE ZU DAD/DAE42.1 Pay attention to quantity

G.BEEDAD 42.1

FRACKLKT11.7-400-DL K18-0814

JOKEFLEXΦ6/10X85 80 0544521

RITTALSZ 4127.010

SCHMALZ10.07.01.00116 VFT G1/8-IG 80

OMRONE2B-M12LS04-M1-B1

INDUNORMMSM 300-50-3H-Z4

PILZ570561

GESSMANN5240046005 10.0 KOHM T1491

SNTRMI85 1/10 FL-SX/P + TN90L/4

PILZ479150

EBROZ011-A DN200 DISC:1.4408 SHAFT：1.4104 LINER：NBR PS:10BAR

BIHL+WIEDEMANNBW2222

ERTLIEBTGZ 48-01

CREATIVE3191285700001

CREATIVE3191286800001

MEYER0,08CCM/HUB, 2,4CCM/MIN 112002143

PILZ774085

BURKERT00287193

BURKERT00248828

Early examples of ball bearings were discovered on an ancient Roman ship built in 40 BC in Lake Nano, Italy: a wooden ball bearing was used to support a rotating tabletop. It is said that Leonardo da Vinci described a type of ball bearing around 1500. One important factor in the immaturity of ball bearings is the collision between balls, which causes additional friction. But this phenomenon can be prevented by putting the ball into small cages one by one. In the 17th century, Galileo made the earliest description of "cage ball" ball bearings. At the end of the 17th century, C. Valor of England designed and manufactured ball bearings, which were tested on mail carts, and P. Worth of England obtained ball bearings. The earliest practical rolling bearing with a cage was invented by watchmaker John Harrison in 1760 for the production of H3 chronometers. At the end of the 18th century, H.R. Hertz from Germany published a paper on contact stress in ball bearings. On the basis of Hertz's achievements, R. Stribeck from Germany, A. Pamgren from Sweden, and others conducted extensive experiments, contributing to the development of design theory and fatigue life calculation for rolling bearings. Subsequently, N.P. Petrov applied Newton's law of viscosity to calculate bearing friction. The first one about the ball groove was obtained by Philip Vaughn of Camason in 1794.

In 1883, Friedrich Fischer proposed the idea of using suitable production machines to grind steel balls of the same size and accurate roundness, laying the foundation for the bearing industry. O. Reynolds from the UK conducted mathematical analysis on Thor's discovery and derived the Reynolds equation, laying the foundation for the theory of fluid dynamic lubrication.

Industry Overview

According to data from the National Bureau of Statistics, in 2011, there were a total of 1416 enterprises in China's bearing manufacturing industry with an annual sales revenue of over 20 million yuan, achieving a total industrial output value of 193.211 billion yuan, a year-on-year increase of 27.59%; The sales revenue was 191.097 billion yuan, a year-on-year increase of 30.30%; The total profit was 12.523 billion yuan, an increase of 26.54% compared to the previous year. It is expected that by 2015, China's bearing production will exceed 28 billion sets, and the main business income is expected to reach 210 billion yuan, becoming a large bearing production and sales base.

At present, China's bearing industry is mainly facing three prominent problems: low production concentration, low R&D and innovation capabilities, and low manufacturing technology level.

Firstly, the concentration of industry production is low. Of the approximately $30 billion in sales of bearings, the world's top 8 multinational corporations account for 75% to 80%. Two major companies in Germany account for 90% of its national total, five companies in Japan account for 90% of its national total, and one company in the United States accounts for 56% of its national total. However, the top 10 bearing enterprises in China, such as tile shaft, only account for 24.7% of the industry's sales, and the production concentration of the top 30 is only 37.4%.

Secondly, the research and innovation capabilities are low. The basic theoretical research of the entire industry is weak, the participation in international standard formulation is weak, there are few original technologies and products.

At present, our design and manufacturing technology is basically imitation, and our product development capability is low. This is reflected in the fact that although the matching rate of domestic main engines reaches 80%, the matching and maintenance bearings of important main engines such as high-speed railway passenger cars, mid to high end sedans, computers, air conditioners, and high-level rolling mills are basically imported.

Thirdly, the manufacturing technology level is low. The development of manufacturing processes and equipment technology in China's bearing industry is slow, with low CNC machining rates and low automation levels in grinding. There are only over 200 automatic production lines in the country. Advanced heat treatment processes and equipment that are crucial for bearing life and reliability, such as controlled atmosphere protection heating, double refinement, bainite quenching, etc., have low coverage and many technical challenges have not been overcome. The research and development of new types of bearing steel, the improvement of steel quality, and the development of related technologies such as lubrication, cooling, cleaning, and abrasive tools are still unable to meet the requirements of improving the level and quality of bearing products. As a result, the process capability index is low, consistency is poor, product processing size dispersion is large, and the internal quality of the product is unstable, which affects the accuracy, performance, service life, and reliability of the bearings.

bearing parameters

lifespan

The number of revolutions or hours that a bearing experiences before pitting corrosion occurs under a certain load is called the bearing life.

The lifespan of rolling bearings is defined by the number of revolutions (or hours of operation at a certain speed): bearings within this lifespan should experience initial fatigue damage (peeling or damage) on any of their bearing rings or rolling elements. However, whether in laboratory experiments or practical use, it can be clearly seen that bearings with the same appearance under the same working conditions have significantly different actual lifespans. In addition, there are several different definitions of bearing "life", one of which is the so-called "working life", which refers to the actual life that a bearing can achieve before damage is caused by wear and tear. Damage is usually not caused by fatigue, but by wear, corrosion, seal damage and other reasons.

To determine the standard for bearing life, link bearing life with reliability.

Due to differences in manufacturing accuracy and material uniformity, even bearings of the same material, size, and batch used under the same working conditions have varying lifespans. If the statistical lifespan is 1 unit, the longest relative lifespan is 4 units, the shortest is 0.1-0.2 units, and the ratio of the longest to the shortest lifespan is 20-40 times. 90% of bearings do not produce pitting corrosion, and the number of revolutions or hours experienced is called the rated life of the bearing [1].

rated dynamic load

To compare the bearing capacity against pitting corrosion, the maximum load that the bearing can withstand when its rated life is one million revolutions per minute (106) is defined as the basic rated dynamic load, denoted as C.

That is to say, under the rated dynamic load C, the reliability of this type of bearing working at one million revolutions per minute (106) without pitting failure is 90%, and the higher the C, the higher the load-bearing capacity.

For the basic rated dynamic load

1. Radial bearings refer to pure radial loads

2. Thrust ball bearings refer to pure axial loads

3. Centripetal thrust bearing refers to the radial component that generates pure radial displacement

Industry status

broadcast

edit

The data from the "Analysis Report on Production and Sales Demand Forecast and Transformation Upgrading of China's Bearing Manufacturing Industry" shows that the total industrial output value of China's bearing manufacturing industry has been increasing year by year from 2009 to 2013. In 2013, the industry achieved a total industrial output value of 249.363 billion yuan, a year-on-year increase of 12.92%.

Analysis of data from the past five years reveals that the sales revenue of China's bearing manufacturing industry has been increasing year by year from 2009 to 2013. In 2013, the sales revenue reached 249.012 billion yuan, a year-on-year increase of 11.80%.

The bearing industry in our country is developing rapidly, with the variety of bearings increasing from few to many, product quality and technical level decreasing from low to high, and the industry scale growing from small to large. A professional production system with a basic complete range of product categories and a relatively reasonable production layout has been formed.

In 2023, the research team of the Engineering Ceramics Laboratory at the Korea Institute of Materials Science and Technology manufactured silicon nitride bearing balls for electric vehicle drive modules. It is expected that by 2026, the global market size of hybrid bearings using silicon nitride bearing ball technology will grow to over 1.3 trillion Korean won. [2]

structural classification

broadcast

edit

Classification of bearings

plain bearing

Sliding bearings do not have inner or outer rings nor rolling elements, and are generally made of wear-resistant materials. Commonly used for low-speed, light load, lubrication and difficult maintenance of mechanical rotating parts.

spherical plain bearing

The sliding contact surface of joint bearings is spherical, mainly suitable for swing motion, tilt motion, and rotational motion.

rolling bearing

Rolling bearings are classified into radial bearings and thrust bearings based on the direction of load they can withstand or the nominal contact angle. Among them, radial contact bearings are radial bearings with a nominal contact angle of 0, and radial angular contact bearings are radial bearings with a nominal contact angle greater than 0 to 45. Axial contact bearings are thrust bearings with a nominal contact angle of 90, while thrust angle contact bearings are thrust bearings with a nominal contact angle greater than 45 but less than 90.

According to the shape of the rolling elements, they can be divided into ball bearings and roller bearings. Roller bearings are divided into cylindrical roller bearings, needle roller bearings, tapered roller bearings, and self-aligning roller bearings according to the type of roller.

According to whether it can be self-aligning during operation, it can be divided into self-aligning bearings - bearings with spherical raceways that can adapt to angular deviation and angular motion between the axis lines of two raceways, and non self-aligning bearings (rigid bearings) - bearings that can resist angular deviation between the axis lines of raceways.

According to the number of rolling elements, they are divided into single row bearings, double row bearings, and multi row bearings.

According to whether their components (rings) can be separated, they are divided into separable bearings and non separable bearings.

According to its structural shape (such as the presence or absence of loading slots, the presence or absence of inner and outer rings, the shape of the collar, the structure of the blocking edge, and even the presence or absence of a retaining frame), it can be divided into various structural types.

According to their outer diameter size, they are divided into micro bearings (<26mm), small bearings (28-55mm), medium and small bearings (60-115), medium and large bearings (120-190mm), large bearings (200-430mm), and extra large bearings (>440mm).

Divided by application field, it can be divided into motor bearings, rolling mill bearings, main bearings, etc.

Divided by material, ceramic bearings, plastic bearings, etc.

Deep Groove Ball Bearing

Deep groove ball bearings are representative rolling bearings. Compared with other types of bearings of the same size, this type of bearing has a low friction coefficient, high maximum speed, simple structure, low manufacturing cost, high accuracy, no need for frequent maintenance, and a large size range and multiple forms. It is a type of bearing that is widely used. It mainly bears radial loads and can also withstand certain axial loads. When it only bears radial loads, the contact angle is zero.

After being installed on the shaft, deep groove ball bearings can limit the axial displacement of the shaft or housing in both directions within the axial clearance range of the bearing, thus enabling axial positioning in both directions. When deep groove ball bearings have a large radial clearance, they have the performance of angular contact bearings and can withstand large axial loads. Under high-speed operating conditions with high axial loads, deep groove ball bearings are more effective than thrust ball bearings. In addition, this type of bearing also has a certain degree of self-aligning ability, and can still work normally when tilted 2 'to 10' relative to the housing hole, but it has a certain impact on the bearing life.

Angular contact ball bearing

Generally, six types of bearings, represented by 36 and 46 type bearings, have angular contact angles of 15 degrees, 25 degrees, 45 degrees, etc.

Self-aligning ball bearing

A self-aligning ball bearing is a bearing equipped with spherical balls between the inner ring of two raceways and the outer ring of a spherical raceway. The curvature center of the outer raceway surface is consistent with the center of the bearing, so it has the same centering function as the automatic centering ball bearing. When the shaft or housing bends, it can be automatically adjusted without increasing the bearing burden. Spherical roller bearings can withstand radial loads and axial loads in two directions. Self aligning ball bearings have a large radial load capacity and are suitable for situations with heavy loads and impact loads. The inner diameter of the bearing is a tapered hole, which can be directly installed. Or use a tightening sleeve or a disassembly cylinder to install it on the cylindrical shaft. The retaining frame is made of steel plate stamping and polyamide forming Self aligning ball bearings are suitable for industries such as heavy loads and impact loads, precision instruments, low-noise motors, automobiles, motorcycles, metallurgy, rolling mills, mining, petroleum, papermaking, cement, sugar extraction, and general machinery.

thrust ball bearing

Thrust ball bearings are divided into two types: unidirectional and bidirectional. They can only withstand axial loads and cannot withstand any radial loads. The thrust bearing is divided into two parts: the tightening ring and the active ring. The tight ring is tightly connected to the shaft sleeve, and the active ring is supported on the bearing seat. The rings and rolling elements are usually made of high-strength and wear-resistant rolling bearing steel, and the surface hardness after quenching should reach HRC60-65. Retainers are often made of soft steel stamping, but can also be made of copper alloy cloth, rubber wood, or plastic.

Bidirectional thrust angular contact ball bearing

The contact angle of thrust angular contact ball bearings is generally 60 °. Commonly used thrust angular contact ball bearings are bi-directional thrust angular contact ball bearings, mainly used for precision machine tool spindles. They are generally used in conjunction with double row cylindrical roller bearings and can withstand bi-directional axial loads. They have the advantages of high accuracy, good rigidity, low temperature rise, high speed, and easy installation and removal.

Thrust roller bearing

Including thrust cylindrical roller bearings, thrust tapered roller bearings, thrust needle roller bearings, and thrust self-aligning roller bearings.

needle roller bearing

Needle roller bearings are equipped with thin and long rollers (roller length is 3-10 times the diameter, and the diameter is generally not greater than 5mm), so the radial structure is compact. Its inner diameter size and load capacity are the same as other types of bearings, and its outer diameter is the smallest, making it particularly suitable for support structures with limited radial installation dimensions According to different usage scenarios, needle roller bearings can choose bearings without inner rings or needle roller and cage components. At this time, the journal surface and housing hole surface that match the bearing are directly used as the inner and outer rolling surfaces of the bearing. To ensure the same load capacity and operating performance as ring bearing, the hardness, processing accuracy, and surface quality of the shaft or housing hole raceway surface should be consistent with the bearing ring Combination needle roller bearing is a bearing unit composed of radial needle roller bearing and thrust bearing components. It has a compact structure, small volume, high rotational accuracy, and can withstand high radial loads while also bearing certain axial loads. And the product structure is diverse, adaptable, and easy to install. Combination needle roller bearings are widely used in various mechanical equipment such as machine tools, metallurgical machinery, textile machinery, and printing machinery, and can make the mechanical system design very compact and agile.

Outer spherical ball bearing

The outer diameter surface of the outer ring of the outer spherical ball bearing is spherical, which can serve as a centering function.

Spherical Roller Bearings

Spherical roller bearings have two rows of symmetrical spherical rollers, which mainly bear radial loads and can also bear axial loads in any direction, but cannot bear pure axial loads. The outer raceway of this type of bearing is spherical, so its centering performance is good, and it can compensate for coaxiality errors. When the shaft is bent under force or installed with different concentricity, the bearing can still be used normally. The centering performance varies with the bearing size series, and the generally allowed centering angle is 1-2.5 degrees. This type of bearing has a large load capacity. In addition to bearing radial loads, the bearing can also withstand axial loads acting in both directions, and has good impact resistance. Generally speaking, the working speed allowed for self-aligning roller bearings is relatively low. Suitable for working under heavy loads or vibration loads.

flange bearing

The outer ring of the flange bearing has a flange flange. The characteristic is that it can simplify the structure of the host, reduce the size of the host, and make the bearings easier to locate.

Pillow block bearing

A component consisting of a radial bearing and a seat, with a bottom plate for mounting screws on a support surface parallel to the axis of the bearing.

Combination bearings

A rolling bearing composed of two or more types of bearing structures simultaneously within a set of bearings. Such as needle roller and thrust cylindrical roller combination bearings, needle roller and thrust ball combination bearings, needle roller and angular contact ball combination bearings, etc.

Linear bearing

Linear bearings are divided into metal linear bearings and plastic linear bearings.

Metal linear bearings are a low-cost linear motion system designed for use with infinite travel and cylindrical shafts. Due to the point contact between the bearing ball and the shaft, a small load is used. The steel ball rotates with minimal frictional resistance, allowing for high-precision and smooth motion.

Plastic linear bearings are a self-lubricating linear motion system. The biggest difference between them and metal linear bearings is that metal linear bearings have rolling friction and point contact with cylindrical shafts, making them suitable for low load high-speed motion; Plastic linear bearings have sliding friction and are in surface contact with cylindrical shafts, making them suitable for high load and low-speed motion.

LEUZEODS9L2.8/LAK-450-M12

MP-FILTERS8MR6304M25A

TIEFENBACHM8 NORD MAGNET

PRO-FACEDiscontinued, successor model: 3733462 PFXGP4501TADW (please check if it is available with information. Please note: it needs to be converted to DC power supply voltage.)

RAPID9.15.12/2 ART-NR. 09004

SELLAKW9/13 V400 REART

OBLFFSE0610

OBLFAEMBK28

OBLFFS14004

REIFFPU85A6-5300

REIFFPU85A6-5220

LTA421055

LTA421239

LTA421106

LTA420645

R+WSK2/2/46/W

HYDAC1349807

ZIEHL-ABEGGGR31M-6ID. BF.2R 220V 0.43KW 2350/MIN

LEINE&LINDELL861900220HEAVYDUTYIN

BAUMERUNDK 30P1703/S14

SCHENCKM695-S2

COMPACTBSC2T25×25 12/07 864-647-9521

APEX10MM13

IPR15030102

IPR15030039

HUBER+SUHNER9GKW-AX 3600V 1X1.5 M BK 700M

HANSA-FLEXHOSE IDEAL-GRUN DWD 645-1 1/2(37*7) L=750

HANSA-FLEXHOSE IDEAL-GRUN DWD 645-1 1/2(38*7) L=1000

HANSA-FLEXHOSE IDEAL-GRUN DWD 645-3/4(19*5)L=1200MM

HANSA-FLEXHOSE IDEAL-GRUN DWD 645-1 1/2 (38*7) L=720

GARBARINOMU 80-200 VS without motor

SIEMENS6ES7323-1BL00-0AA0

SIEMENS6ES7331-7KF02-0AB0

SIEMENS6ES7 315-2EH14-0AB0

SIEMENS6ES7901-3DB30-0XA0

SOLARTRONSubsequent model: USB MODUL 911427-3

PALLHC9600FCP13H

ODU190.234.100.201.000

ODU190.235.100.201.000

BW TECHNOLOGIESGASALERT MICRO 5 PID

HILSCHERNT 100-RE-DP/+ML

HYDACG 90 M2 3051687

MULTIFORMERLAM- M-04-008

MULTIFORMERLAM-M-04-0 03

AFSA8 AC

R-K ELECTRONICSRDS1B-10 200VDC

VICTRONREGULATOR 70A 48V

VICTRONCONVERTER 8000VA 48V

VIBRADV-D4/160

LTA48.00061

LTA420584

TRCMS58M-00005

GHIELMETTIHD1S5198E6K9

GHIELMETTIHD1S5430E6K9

TBHFILT ARTICLE NO.:12052 600*300*235-TBH

TBHFILT 605X300X258-NR.16360-TBH

SOMMERSGW25NC/02

MINIM431PP replacement

BURKERT00298391

STRINGNRS 1-50

MTLMTL 684B

E.G.O12.30453.195

RUBSAMEN HERR10 735 156, LV 700 230V SAUGEND

ZFEBU1000/10,DC24V

ELETTAS25-PC07100-65B/LL，IP65，16BAR，20~100M3/H

PILZ541061

SNRLGBCH25FL CCAASIF

SNRAXDL240SNU3210-D-500-854-A0-0000-P-A

MOOREDDA/4-20MA//DH1L1/24DC/-CE [DIN]

BUCHERBBV6-4FL/0.3/BY-0.30/SV350/N

SCHNEIDER20A Q0220

DEMAGAME30DD

DEMAGZBA 90 B 4 B020

MAYR8243070

FRABAOCD-DPC1B-1212-B150-H3P (with information available)

BUCHERW2N32SN-6BB2 24D

BRAUN-TACHOD1553.120U1M

GEMU88064264 815R20D 72214 546 160

ODU190.215.100.201.000

ELECTRONICONE62.R16-333L30

AUTONICSMD5-ND14

BAUMERUNAM 50I6121/S14

BUCHERWS22GNA5-3 24D

SPECKQY-1044-0013

NUMATICSYA2BB4524G00061

BSTEMS18/200/2.4/16-5/CX

VECTORCANOE PRO

VECTORCANOE PRO OPTION ETHERNET

VECTORVN5640 ETHRTNET/CAN INTERFACE

VECTOREthmodule BCM 89811

VECTOREthmodule 88 Q 2112 V 2

VECTORAECABLE 2Y EVA

VECTORCANCABLE 2Y

VECTORBRCABLE 2Y

BAUMERTDP 0,2 LT – 3 + FSL (SWITCHING SPEED 850 RPM) // SN2421553

L+BGEL2444KMRG3K150- Alternative

HBMT10S3 2ADAT-T10S2T0S6

ENGEL8021004742 GNM2130C-G5

H+LWEP04-4BP100-D25/0*

BUSCHSAMOS SB 0200 D 2H0 XAXX

VECTORVN7640

LOOK SOLUTIONSLOOK TINY FLUID 250ML

HANDTMANN33521 DN025

MOBREY20-60VDC 0.3W

FELLERVIIG-H05VVF3G1,50-G50/4M, SCHWARZ

DURAGD-LX200XX-XX/84EX

KEB03.38.00N-0241

SPERRE4332

HONEYWELLAF11S-11/2A

VECTORCANOE PRO

VECTORCANOE OPTION. LIN

VECTORFRPIGGYC 1082CAP

VECTORLinpiggy 7269 mag

SENSOR TECHNICSSQ274-12229 DC15/18BBXXX 10027372-XXXX

POWERKP 1/16 G10A K0A 4VL2/245

POWERKP 1/22 G10A K0A 4VL2/245

HERION0882400000000000

VECTORCANPIGGY 1057CAP

VECTORTraining on CANOE software

HYDAC1349807

HYDAC2402416

FISCHER605-026, FERITSCOPE FMP30 +604-264+ 604-337+ 605-564+604-290

COREMOZ50055

MAXON258727

MAXON242247

R+WSK2_2_46_W_10_10_1P4_0P5_2

CRANEAKSD5B100H

BLUM142531 IC55

MATTKEGDM 12 Z 594/0400

EBMPAPSTVDC-3-54.14 9375414703

BUCHERQX43-032R

BOURNS3590S-1K

GESSMANNV62L-04Z+04Z-A140

CYTECSTP-090-01

ASMWS10-500-420A-L10-SB0-KAB7,5M-EH113

RebsFSB-G1/4 1400217

AMG-PESCH146296, AMG-BOX M215 2XV3 MIKRO SFB AZ M20X1,5-E

REICHELTPATCHKABEL 5 GR, 5,0M CAT.5E-KABEL, GRAU

CYTECSTP-090-02

CYTECSTP-090-03

PREVOSTDiscontinued production, replacement: DMF 0812N

AEROTECHA-1L 008008

HOFFMANN74-41210016147 substitute

SCHLICK11894 SCHLICK-MOD.121 BORE DIA. 0.2MM

AECOSC30P-CE25 PNP NO+NC K

MAXON717686 replacement

MAXON447293 replacement

MEDCME-BG-EB-5B-24-DS-N-7-R

AIRPOWERAPS-130/090-12-F07/F10-V22-H

HOMMEL10053157 TCD EL20/11H L42 D3/42

VAISALAVAISALA MT-702 DMT152J(TD:-100~20℃） JT15520162

VISITUV FLASH DRY C1

ROHM150598

COAXSealed package 226426 for 71631

COAXSealed package of 53150

DIETZ MOTORSFDR 80/100/2 0

PFERD42237515, KSB 2525 A 150

COAX541542

BUCHERCINDY16-B-SND-S100-A-G10-1-SVA350

NORDSON1052925

EPCOSB25667C7167A375

PANTRONISG-N34/24VAC

AIRPOWERAPS-130/090-12-F07/F10-V22-H

ELECTRONICONE62.H12-202G10

BRINKMANNKTB52/300 SIX

NORELEM26106-05004055

NORELEM26110-05005855

KNOLLKTS 32-48-T

KONLLKTS 25-50-T-KB

KNOLLKTS 25-50-T-KB

FUMEXPART#FA501D

FUMEXPART#FA500

FUMEXPART#FA540B

KNOLLKTS 50-74-T

GEFRANPZ-34-A-250 0000X000X30

SCHENCKC17VAK 20115 F217737.02

SCHENCKVSC20106 F217738.01 2N1I3

EUCHNER100898 STA3A-4141A024L024M

GARBARINOMU 80-200 VS

ALREJA060100, JSF-1E (please verify model and order number)

KROHNEDK34/K1/S/A-EX

JVLMAC00-EP4

EUCHNERCES-A-BPA-098775

EUCHNERCES-AP-C01-AH-SB-111145

SCHMALZSGON 7X3.5 HT1-60 M3-AG

NOVOTECHNIK4000350S4 TP1-1600-101-423-102

PILZ777538

PILZ774318

PILZ779200

ALTMANN104579 DP120-47 LT

KNOLLFKA/2500 420538

WAECOAlternative: ASC 1300 G

SCHMALZ10.02.01.01736

MAHLE77749807 PI 0154 SM-L

PILZ777601

PILZ777530

BONFIGLIOLIBN 63B 4 B5 230/400-50 IP54

INFICON3PC1-001-0001 PCG550 FCC,16KF

SKFMKU2-KW3-20003+428

CAMFILHI-FLO P7

CAMFILHI-FLO R7

TOX398232

PREVOSTDMF 0810N 8X12 10M discontinued, replaced by DMF 0812N 12M

GUNNEBO9030000709

REVORD5050007000000

AFAG11010482 GMQ 20/2

REVOSTPU 8X12MM

JAQUETDSF 1410.03 AHV ART.-NR.: J374Z-04400

GEMU88201481 4232000Z1405005M00000

DESTACO89R32-010-2A

DESTACO89R40-010-2A

GUSEKETTEN-F-LEX-CP UR4*0.34

GUSCF880.07.24

GUSCF880.10.25

GUSCF880.07.04

MOCALEOP2 3951396V00

PILZ570801

CAMFIL(578X568X24)MM

CAMFIL(578X568X12)MM

VECTORCANOE PRO

VECTORCANOE PRO OPTION J1939

ATOSDHA-0713P/NPT-24VDC

VECTORCANOE PRO OPTION LIN

ATOSDHA-0631/2/NPT-24VDC

VECTORVN1640A

BAUMERHOG 10DN 2048 I

DEMAGWUE60TD ZBA132 AL 4 B050

K+NCAD11 A214-600 FT2 is valid for the entire order

K+NCAD11 A715-600 FT2

ALFING8117294 is valid for the entire order, please provide the end user and ALFING machine number when placing the order

ALFING8513339

VECTORCANPIGGY 1057GCAP

VECTORLinpiggy 7269 mag

MORGAN-REKOFA1909703

MORGAN-REKOFA1600915

CRESTRONDM-MD16X16-CPU3 (without any import or export card)

ALFING8547598

MOXAIMC-P101-S-ST

KOLLMORGENAKM44G-ACCNR-00

CARL REHFUSS00342857 Manufacturer's quotation

PFERD42756506 CD 50 CO-COOL 60 (note minimum order quantity, 100 pieces per pack, minimum order per pack)

RE-SPACX.01A67016-R15.AR3

FISTERS827104001 FOR KTRU 52 NA 16000

WURTH899140

ROHM1329332

ROHM1329333

WURTH0616100

WURTH798063863

WESTERMO3150-1001, MD-12 DC

TITANL26 P-305-214M8

ZAEW110-0004/56-OOO-4:1-1200

DESOUTTER6159170950-77 15M replacement

DISPLAYKF65-(A90-4)

WURTH623000001

MONITORTM-MM-7-8150

JUMO703030/10-042-000-04-000-22/050.061

MOOGS0-AKM

SAUTER151-F0506 OMS315

LAHTI PRECISIONAlternative to 1-Z6FC3/100KG-1 HBM

ORTLIEB.TGZ48-02 (There is no TGZ 48-01 model, the factory speculates that it is TGZ48-02)

GRACO25D235

LOVATO11 B145 00 220

PILZ506324

MOVOMECH730498

WALDMANN111650000-00063029

MAYRFINS58 511-022-807CH 5-30VDC shaft diameter Φ 10

ASKUBALK125NR. STEEL

MAGNET-SCHULTZAWUX015D02

ASCOAlternative: R422001438

PARTICULAR PURPOSE92421

SIEMENS6SN1123-1AA00-0DA2

WIELANDWRS-SSDC-60V5A

AMG-PESCH227297, 2XMIKRO/M215G/AUF,ZU/M20X1,5-E/MS 07-43

FAULHABER341 270:1

GLUE MACHINERYESTIMATE 02242110 ML 240VAC

SIEMENS6SN1123-1AA00-0DA1

SIEMENSED63B100

SIEMENS6ES7323-1BL00-0AA0

MRV08-0000083-00

MRV08-0000102-07

SIEMENS6ES7331-7KF02-0AB0

SIEMENS6ES7 315-2EH14-0AB0

SIEMENS6ES7901-3DB30-0XA0

KNODLERFZ 250.2-SG40.4

Steel9001/00-280-100-101

SCHUNK371104 PGN-PLUS 160-1

SCHUNK371106 PGN-PLUS 300-1

VECTORCANOE PRO

VAHLE0168015/01

BALLUFFBES01WM BES R03KC-POC30B-EP05

VECTORGL5350-8H

PERMA100724

ASHCROFTAPAN41P00 MHV02500BR-60R 3A 125VAC 2A 30VDC

ROHM150598

IMC21500832

HBMSO-BAT-0001-01 MFG BY PROTECHNOLOGIES -PT001138 10.8VDC

IMC21300923

SCHUNK0301032 MMS 22-S-M8-PNP

BERTHOLDLB 491\\NAI 24V HART

BRUCKNER5125A

RITTALSK3323107

RITTALSZ2376.010

BUCHERDWPBU-2-10-SN20-1

BAUERBS02-38H/D04LA4-E/E003B9/SP

PillsDO-203

PillsPT-107

CONDUCTIX-WAMPFLERTFO40-12FO09 CSA

SICHELG340X46 24100124

VECTORVN7640

VECTORCANOE PRO

PARKERSck- 401 - 0.3 -y

VECTORCANOE OPTION. LIN

VECTORFRPIGGYC 1082CAP

VECTORLinpiggy 7269 mag

RITTALSK3325.027 24VDC 14W

VECTORCANPIGGY 1057CAP

OLEODINAMICAOIL SEAL FOR SH-160/70 M75 CPF NA

OLEODINAMICAOIL SEAL FOR SH-100/45 M100CPS NA S

OLEODINAMICAOIL SEAL FOR SH-63/45 F70 RAP-S PU

OLEODINAMICAOIL SEAL FOR SH-40/28 F50 RA NA PU

ZIMMERMKS2501A Attention Quantity

VECTORFAST AUTOMOTIVE-CAPABLE MEMORY CARDS OR SSDS

BAUERBF10-74W/DXE08MA4/C2-SP

GREISINGERGTF101-EX-I-01-PM 120 8 0260 1 S

STORK4518045121 ST501

KTR100SD2 D1 =75, D2 =50

LECHLER490.843.1Y. CG.00.0

SIEMENS6GK5005-0BA00-1AB2

BAUMERUNDK 30U6113/S14

ROEMHELD8600112

AERZEN2000028130 GLB15.11HV

COLTRI SUB100.100.MCH 6EM50INOX ICON 6 EM

OTT-JAKOB9560016926 is valid for the entire order

CARL STAHLBALANCER 7241 60 - 75KG 2M 5MM STAHL

OTT-JAKOB9560005526+9510218841

OTT-JAKOB0926030109

HYDACKMS30-2402416 1349807 comes in a set of 4 pieces

ROHMRPP-64-1 170001

HEMOMATICHMFB-VV, V=165MM, V=230MM

VECTORVN1640A CAN/LIN NETWORK INTERFACE

VECTORCANPIGGY 1057GCAP

JUMO00704334

FINDER40.61

SCHISCHEKREDCOS-P-500

TECHNICAL240-2R0-60

COVALGVMAXV2-2R 替代

ESTA09215 DUSTOMAT HMS-10 DN

COAX3-HPB-S32

TE CONNECTIVITYACW0219-0.50-0(50) RED

TE CONNECTIVITYACW0219-0.50-5(50) BLACK

TE CONNECTIVITYACW0219-0.50-9(50) BLUE

SAUTEREY-AS525F005

TE CONNECTIVITYACW0219-0.50-2(50) YELLOW

TE CONNECTIVITYACW0219-1.0-2 RED

CAMOZZIK000-303-KH3MS01

TE CONNECTIVITYACW0219-1.0-0 BLACK

GRAS42AG

AIRTECSP011

BERTHOLD55067-150

BERTHOLD48452-01

HBM1-U2B/2KN

JOYNERDRN 5 601

GSR063.001210

TEKA10025

KNOLLKTS 50-74-T

CAMILLE BAUER AGSINEAX TV 819

TRELLEBORGCOUNTER RING VRW 47*66 NBR

ACENew item number: ML 3325 EUM

All-flowVS 0,2 EPO54V 32N11/4 - 10...28VDC

All-flowVS 0,1 EPO64V 32N11/3 10..28VDC

All-flowVS 0,04 EPO64V 32N11/4 10..28VDC

CRESTRONDMC-4KZ-HD

CRESTRONDMC-HDO

EXPERTMF8-8,9-6,5-TMUERF-M8PR-1G

STORK4518202885 ST181

AC-MOTORSFCPA 71 B 4 (Please verify installation method, reported as B35)

STEINELSZ8066.2.120X210B

NORELEM06158-5050102

NORELEM06220-208

BK Miko6304261

TRCOH58S-00004

LAMMERS1TZ9002-0BB22-2KA4-Z

IAIRCP6-RRA7R-WA-56P-4-120-P3-R15-B-ML

KVASER00831-1, USBCAN LIGHT 4XHS

DMNAL250-5

PEDAKM2-1VR5B.0001.572AD

SITE245.01.00280 The entire order is valid

MOTOR BUILDING THINGSCAMV 132 SZA 8/4

COAX524693

ELTRAER40A2048Z5/28P6X6PR2

CROUZET87623672

SITE245.01.00281

KEB033811N-4024

SIEMENS6SE6430-2UD33-7EB0

TRCMW58M-00068

CFW180-160-14

TRIEW582-00015

CAPTRONCHT3-151P-H/TG-SR

EBRO ARMATURENZ011-A DN 200

KISTLER18013787 4577A10C3 is valid for the entire order

KISTLER18003586 4577A20C1

HYDAC0030 D 010 ON replacement

HYDAC0330 R 010 ON 替代

HYDAC0180 MA 010 BN

HYDACKMS30-2402416 1349807

SORICOGU-06506-2

SORICD-07181/9879-0 DC12V04 PSK-IBSL

SCHAUDT MIKROSA990353500655

STARTThe customer's model SG07-15-WC1254-01 has been discontinued, and the valve reported has a different design, but its technical data is compatible.

GEMU88683870 481 50W332A1EL1 GR06SP0

BGBBRUSH CA35-164245

BARTEC07-3323-3103

BARTEC07-3323-3203

BARTEC07-3323-3403

SOMMERNJ3-E2SK

VISHAYMOD534 RES 5K±5% LIN±25%

LUTZE716410

LUTZE716457

EGEP11298 SDN 552/3 GAPP

RITTALSK3361500

SCHMERSAL101157379 AZ 16 ZVRK-M20

MICRO-EPSILONILD2300-10

ROEMHELD1546-516

BARNM-321-H-XXXX-EX M G 1/4 'IP 65 XXXX is a voltage to be confirmed, 24VDC or 230VAC. Please inform before placing an order

COSTYRKA5350.040.100

GEMUSubsequent model: 88752710 687 20D1640131F/N 1502

BUCHER301RC010301ET

MAGNET-SCHULTZGHUZ040M30A02

ESTA09215 DUSTOMAT HMS-10 DN

SOCLADN32

FANUCA06B-6110-H026

FANUCA06B-6200-H037

GEMUS2 107-263 BA 250V

MUT-CHAMBER6282AFH66-200LP/4 TF 526 7105 2 29Z16

MUT-CHAMBER6282AFH66-200LP/4 TF

BUCHERDWPBU-2-10-SN20-1

KIPPK0084.0250

BUCHER301RC010302ET

CAMOZZI50-6512-0856 6512 8-1/8

BUCHER301RC010304ET

COUPTECCTB-2/30/32/12 Confirm whether the length is 70MM or 78MM before placing an order

FFG WERKEA.1409.1738

FFG WERKEA.1407.0933

FFG WERKEA1407.0934

BARKSDALE0428-263 KF11795.2/036 SW2000 400BAR(VERS.3.4)

FFG WERKEA.1405.2975

FIBRO2020.64.025.102.143.10

FIBRO206.49.020.050.10

FIBRO206.71.030.120

Ball screw bearings provide a wide range of standardized products to adapt to various applications. Widely used in machine tools, the circulation methods of ball bearings include circulation guide tube type, circulation device type, and end cap type. The preloading methods include positioning preloading (double nut method, position preloading method) and constant pressure preloading. Suitable types can be selected based on their intended use. The screw has precision ball screws with high-precision grinding processing (accuracy divided into 6 levels from CO-C7) and cold-rolled ball screw bearings formed by high-precision cold rolling processing (accuracy divided into 3 levels from C7-C10). In addition, to meet the urgent delivery needs of users, there are also finished products that have been processed on the shaft end, semi-finished products that can be freely machined on the shaft end, and cold-rolled ball screw bearings. As peripheral components of this bearing, the necessary screw support units, nut supports, locking nuts, etc. have also been standardized and are available for users to choose from.

Ball screw bearings are based on years of accumulated product technology, and are managed by a rigorous quality assurance system from materials, heat treatment, manufacturing, inspection to shipment, thus having high reliability.

application

Ultra high DN value ball screw: high-speed tool machine, high-speed comprehensive machining center machine

End cap ball screw: fast handling system, general industrial machinery, automation machinery

High speed ball screws: CNC machinery, precision tool machines, industrial machinery, electronic machinery, high-speed machinery

Precision grinding grade ball screws: actuators, valve switch devices, etc. used in CNC machinery, precision tool machines, industrial machinery, electronic machinery, conveying machinery, aerospace industry, and other antenna applications

Nut Rotating (R1) Series Ball Screw: Semiconductor Machinery, Industrial Robots, Woodworking Machines, Laser Processing Machines, Conveyor Devices, etc

Rolling grade ball screw: The advantages of low friction and smooth operation, as well as fast supply and low price

Heavy duty ball screws: fully electric injection molding machines, stamping machines, semiconductor manufacturing equipment, heavy-duty brakes, industrial machinery, forging machinery

How to choose servo motor and stepper motor correctly?

[2] 1. It mainly depends on the specific application situation. Simply put, it is necessary to determine the nature of the load (such as horizontal or vertical load, etc.), torque, inertia, speed, accuracy, acceleration and deceleration requirements. This ball screw has been included in Kuaiyiyou, and the upper control requirements (such as requirements for port interface and communication), the main control mode is position, torque or speed mode. Is the power supply DC or AC, or battery powered, with a voltage range. Based on this, determine the model of the motor and the accompanying driver or controller.

2. How to use a stepper motor driver

According to the current of the motor, use a driver with a current greater than or equal to this current. If low vibration or high precision is required, a segmented driver can be used. For high torque motors, use high-voltage drivers as much as possible to achieve good high-speed performance.

What is the difference between a 3-phase, 2-phase, and 5-phase stepper motor, and how to choose it?

The cost of a 2-phase motor is low, but there is significant vibration at low speeds and a rapid decrease in torque at high speeds. A 5-phase motor has lower vibration and better high-speed performance, with a speed 30-50% higher than a 2-phase motor, and can replace servo motors in some situations.

Can I directly control the servo motor through communication?

Sure, it's also quite convenient, it's just a speed issue, used for applications that don't require high response speed. If fast response control parameters are required, it is best to use a servo motion control card, which generally has DSP and high-speed logic processing circuits to achieve high-speed and high-precision motion control. Such as S-acceleration, multi axis interpolation, etc.

type

broadcast

edit

There are two common ways of looping: outer loop and inner loop. The ball sometimes disengages from the screw during the circulation process, which is called external circulation; The constant contact with the screw is called internal circulation. Each closed loop of the ball is called a column, and the number of turns contained in each closed loop of the ball is called the number of turns. Each nut of the internal circulation ball screw pair has several types such as 2 columns, 3 columns, 4 columns, 5 columns, etc., with only one turn per column; There are several types of outer loops in each column, including 1.5 loops, 2.5 loops, and 3.5 loops.

1) External circulation: External circulation refers to the process where the ball passes through the spiral groove or insertion tube on the outer surface of the nut and returns to the screw nut space to re-enter the circulation after the cycle is completed. The return methods of the external circulation ball screw nut pair during ball circulation mainly include end cap type, insert tube type, and spiral groove type. Common external circulation method: end cap type; Intubation type; Spiral groove type. End cap type, a longitudinal hole is machined on the nut as a return channel for the ball. The cover plates at both ends of the nut have return ports for the ball, which allows the ball to enter the return pipe and form a loop. Intubation type, which uses a bent pipe as the return pipe, has good processability, but due to the protruding nut body of the pipe, the radial size is relatively large. Spiral groove type, which is milled on the outer circle of the nut, with through holes drilled at both ends of the groove and tangent to the threaded raceway to form a return channel. This structure has smaller radial dimensions than the insert tube type structure, but is more complex to manufacture. The external circulation ball screw has a simple structure and manufacturing process, and is widely used. Its disadvantage is that it is difficult to make the seam of the rolling track smooth, which affects the smoothness of the ball rolling track.

2) Internal circulation: The internal circulation adopts a reversing device to achieve ball circulation, and there are two types of reversing devices. Cylindrical convex key reverser, with its cylindrical part embedded in the nut and a reverse groove 2 at the end. The reverse groove is positioned by the outer circular surface of the cylinder and the circular key 1 at its upper end to ensure alignment with the direction of the threaded raceway. Flat round block reverser, which is a general round head flat key block. The block is embedded in the groove of the nut, and its end has a reverse groove 3, which is positioned by the outer contour of the block. Comparing two types of inverters, the latter has a smaller size, which reduces the radial size of the nut and shortens the axial size. But the precision requirements for the outer contour of this reverser and the groove size on the nut are relatively high.

Category selection

The nut of a ball screw can be divided into three types based on the circulation mode of the steel ball: bent tube type, recycler type, and end cap type. The strengths of these three cyclic methods.

Bend type

These models (SBN, BNF, BNT, BNFN, BIF, and BTK) can be found by searching.

Loop type guide plate (HBN type)

These models are the most typical nuts, which circulate steel balls by using bent pipes. The steel ball is scooped from the groove of the screw shaft into the bent pipe, and then returns to the groove for infinite cyclic motion.

Loop type

(DK, DKN, DIK, JPF, and DIR types)

These models are the smallest nuts, which change the direction of the steel ball's movement through a cycler, cross the outer diameter of the screw shaft and return to its original position, performing infinite cyclic motion.

End cap type

(SBK, SDA, SBKH, WHF, BLK, WGF, BLW, WTF, CNF, and BLR types)

These models are the most suitable nuts for high-speed feeding. The steel ball is scooped from the groove of the screw shaft into the through hole of the nut using the end cap, and then returns to the groove through the through hole for infinite cyclic motion.

characteristic

broadcast

edit

1. Low friction loss and high transmission efficiency [4]

Due to the rolling motion of many balls between the screw shaft and screw nut of the ball screw pair, high motion efficiency can be achieved. Compared with the past sliding screw pair, the driving torque reaches less than 1/3, which means that the power required to achieve the same motion result is 1/3 of using a sliding screw pair. It is very helpful in terms of power saving.

2. High precision

Ball screw pairs are generally produced continuously by high-level mechanical equipment, especially in the factory environment of grinding, assembly, and inspection processes, with strict control of temperature and humidity. Due to the quality management system of *, the accuracy is fully guaranteed.

3. High speed feed and micro feed may

Due to the use of ball motion, the starting torque of the ball screw pair is extremely small, and there will be no crawling phenomenon like sliding motion, ensuring precise micro feed.

4. High axial stiffness

Ball screw pairs can be preloaded, as preloading can cause the axial clearance to reach negative values, resulting in higher rigidity (by applying preloading to the balls inside the ball screw, in practical applications such as mechanical devices, the repulsive force of the balls can enhance the rigidity of the female part).

5. Cannot self lock and has reversible transmission capability

protect

broadcast

edit

Ball screw pairs can be lubricated to improve wear resistance and transmission efficiency. Lubricants are divided into two categories: lubricating oil and lubricating grease. Lubricating oil should be engine oil, 90-180 grade turbine oil, or 140 grade spindle oil. Lubricating grease can be lithium based grease. Lubricating grease is added to the threaded raceway and the housing space where the nut is installed, while lubricating oil is injected into the nut space through the oil hole on the housing.

Ball screw pairs and other rolling friction transmission components can be considered to work almost without wear as long as abrasive particles and chemical active substances are avoided from entering. But if dirt falls onto the raceway or dirty lubricating oil is used, it will not only hinder the normal operation of the ball bearings, but also cause a sharp increase in wear.

Usually, a felt ring is used to seal the nut pair. The thickness of the felt ring is 2-3 times the pitch, and the inner hole is made into a threaded shape to tightly wrap around the screw and fit into the slot holes at both ends of the nut or sleeve. In addition to using soft felt, the sealing ring can also be made of oil resistant rubber or nylon material. Due to the direct contact between the sealing ring and the screw, the dust prevention effect is better, but it also increases the frictional resistance torque of the ball screw nut pair. To avoid this frictional resistance torque, a non-contact labyrinth seal ring made of harder plastic can be used, with the inner hole made in the opposite shape of the screw thread raceway and leaving a certain gap.

For screws exposed to the outside, protective covers such as spiral rigid belts, telescopic sleeves, conical sleeves, and foldable plastic or synthetic leather are generally used to prevent dust and abrasive particles from adhering to the surface of the screw. Except for being similar to the protective cover of the guide rail, these protective covers are connected at one end to the end face of the ball nut and fixed at the other end to the support seat of the ball screw. This will make it more secure.

Main parameters

broadcast

edit

Main parameters of threads

1) Outer diameter d (major diameter) (D) - the imaginary cylindrical surface diameter that coincides with the external thread crest - also known as the nominal diameter

2) Inner diameter (small diameter) d1 (D1) - the diameter of an imaginary cylindrical surface that coincides with the external thread root, used as the calculated diameter for dangerous profiles in strength calculations

3) Medium diameter d2- the diameter of an imaginary cylindrical surface at the point where the tooth thickness and interdental width are equal in the axial section, approximately equal to the average diameter d2 of the thread ≈ 0.5 (d+d1)

4) Pitch P - the axial distance between two adjacent teeth on the generatrix of the center diameter cylindrical surface corresponding to two points

5) Lead (S) - the axial distance between two corresponding points on the generatrix of adjacent teeth on the same helical line on the center diameter cylindrical surface

6) Number of threads n - the number of spiral threads, generally for the purpose of manufacturing n ≤ 4. The relationship between pitch, lead, and number of threads: S=nP

7) Spiral angle of rise PSI - the angle between the tangent of the spiral on the medium diameter cylindrical surface and the plane perpendicular to the axis of the spiral.

8) Tooth profile angle α - the angle between the two sides of the thread profile in the axial plane of the thread. 9) Tooth profile angle β - the angle between the side of the thread profile and the perpendicular plane of the thread axis. Symmetrical tooth shape

The main geometric dimensions of various threads (excluding rectangular threads) can be found in relevant standards - the nominal size is the outer diameter of the thread, which is approximately equal to the inner diameter of the pipe thread.

The self-locking condition of a helical pair is that the thread pitch angle is less than or equal to the equivalent friction angle of the helical pair.

The transmission efficiency of the spiral pair is the ratio of effective work to input work when the nut rotates once.

The circumferential force required to overcome the uniform increase of axial force Q

Testing and Maintenance

broadcast

edit

The faults caused by ball screws are diverse and there is no fixed pattern. Some faults are progressive and require a development process, becoming increasingly severe over time of use; Sometimes it is a sudden malfunction, usually without obvious signs, and it occurs suddenly. This type of malfunction is caused by various unfavorable factors and external factors working together. So determining the true cause of the malfunction through correct testing is a prerequisite for rapid and accurate repair.

1) Detection and repair of clearance between ball screw nut pairs and support systems

When there is a large reverse error, unstable positioning accuracy, or tool marks in the quadrant of the CNC machine tool, the first step is to check whether there is clearance in the screw system. The detection methods include: using a dial gauge with a steel ball placed in the center hole of one end of the lead screw, measuring the axial movement of the lead screw, and using another dial gauge to measure the movement of the worktable. Rotate the screw forward and backward, observe the values reflected on the two dial indicators, and confirm the fault location based on the changes in values.

a) Detection and repair of clearance between screw support bearings

If the pointer of the dial gauge measuring the lead screw does not swing when the lead screw rotates in both directions, it indicates that the lead screw has not moved. If the pointer of the dial gauge swings, it indicates that there is a phenomenon of screw movement. The difference between the maximum and minimum measurement values of the dial gauge is the distance of axial displacement of the screw. At this point, we need to check whether the back cap of the supporting bearing is locked, whether the supporting bearing has worn out or failed, and whether the preloaded bearing washer is suitable. If there are no issues with the bearings, simply replace them with preloaded washers. If the bearing is damaged, it needs to be replaced, a preloaded washer needs to be made again, and the back cap needs to be tightened. The axial displacement of the screw mainly depends on the accuracy of the supporting bearing preload washer. The installation accuracy of the screw has no positive or negative clearance, and the supporting bearing also needs to have an interference fit of about 0.02mm.

b) Detection and Maintenance of Gap in Ball Screw Double Nut Pair

Through testing, if it is confirmed that the fault is not caused by the movement of the screw. Then we need to consider whether there is a gap between the screw nut pair, and the detection method for this situation is basically the same as detecting screw movement. Measure the maximum gap between the lead screw and nut on the workbench connected to the nut using a dial gauge, and then adjust it by rotating the lead screw in both directions.

The method is to adjust the thickness of gasket 4 to cause axial displacement of the left and right nuts 1 and 2, thereby eliminating the clearance between the ball screw nut pairs and generating preload force. Due to the different structures of the screw nut pairs, the adjustment methods are also different, which will not be listed one by one here.

c) Inspection and maintenance of single nut pairs

For single nut ball screws, the gap between the screw and nut pairs cannot be adjusted. If it is detected that there is a gap between the screw nut pair. Firstly, check whether the thread arcs of the lead screw and nut have been worn. If the wear is severe, the entire set of lead screw and nut must be replaced.

If the wear is minor, a larger diameter ball can be replaced for repair. Firstly, detect the maximum clearance of the screw nut pair, convert it into an increase in ball diameter, and then select suitable balls for reassembly. This type of maintenance is quite complex, requires a long time, and demands a high level of technical expertise.

d) The gap caused by the connection between the nut flange and the workbench not being fixed properly

This issue is generally overlooked because the machine tool moves back and forth for a long time, causing the screws that fix the Faraday disc to loosen and create gaps. When checking the clearance between the screw and nut, it is best to eliminate this fault factor first to avoid taking detours during repairs.

e) Repair of faults such as unstable movement and excessive noise of ball screw nut pairs.

The unstable movement and excessive noise of the ball screw nut pair are mostly caused by poor lubrication, but sometimes it may also be due to improper adjustment of the servo motor drive parameters.

2) Poor lubrication of bearings, screw and nut pairs

If the machine tool generates noise and vibration during operation, after checking that there is no problem with the mechanical transmission part, the first thing to consider is poor lubrication. Many machine tools have been running for many years, and the automatic lubrication system of the screw and nut is often blocked and cannot lubricate automatically. Adding high-temperature and high-speed resistant lubricating grease to bearings and nuts can solve the problem. Lubricating grease can ensure the normal operation of bearings and nuts for several years.

3) Servo motor drive problem

Some machine tools generate vibration and crawling during motion, and often the mechanical parts are detected without any problems. No matter how they are adjusted, the vibration and crawling cannot be eliminated. After careful inspection, it was found that the servo motor drive gain parameters are not suitable for actual operating conditions. After adjusting the gain parameters, vibration and crawling can be eliminated.

FIBRO2073.48.35.15

FIBRO2021.64.025

FIBRO2021.46.060.280.20

FIBRO2081.46.060.20

FIBRO206.71.060.140

FIBRO2021.43.063

PARKERZNYB03020101

SCHUNK0301032 MMS 22-S-M8-PNP

PREEFLOW505062 ECO-21152 is valid for the entire order

COMPULABFIT-PC4-CG420-WACB-FM4U

AIRCOMPP000-5000

FEYFK6-ASD 201*8.0*3.0 MAT.1.4310

5、 Processing performance

In the consumption process of bearing parts, they need to go through many cold and hot processing procedures. In order to meet the requirements of small quantities, high efficiency, and high quality, bearing steel should have good processing performance. For example, cold and hot forming performance, cutting performance, hardenability, etc.

In addition to the basic requirements mentioned above, bearing steel should also meet the requirements of appropriate chemical composition, average external structure, minimal non-metallic impurities, compliance with specifications for external surface defects, and the decarburization layer on the surface not exceeding the regular concentration.

Application

broadcast

edit

Bearing function

In terms of its function, it should be support, which literally means it is used to support the shaft, but this is only a part of its function. The essence of support is to be able to bear radial loads. It can also be understood as being used to fix the shaft. The automatic selection of quick and easy bearings is included. It is to fix the shaft so that it can only rotate, while controlling its axial and radial movement. If the motor does not have bearings, it cannot work at all. Because the shaft can move in any direction, and the motor requires the shaft to only rotate during operation. In theory, it is impossible to achieve the function of transmission. Moreover, bearings can also affect transmission. In order to reduce this effect, good lubrication must be achieved on the bearings of high-speed shafts. Some bearings already have lubrication, called pre lubricated bearings, while most bearings must have lubricating oil, which is responsible for not only increasing energy consumption due to friction during high-speed operation, but also easily damaging the bearings. The notion of converting sliding friction into rolling friction is one-sided, as there is something called sliding bearings.

lubricate

The lubrication purpose of rolling bearings is to reduce internal friction and wear, and prevent burning and sticking; Extend its service life; Eliminate frictional heat and cooling, prevent bearing overheating, and prevent lubricating oil from aging on its own; It also has the effect of preventing foreign objects from entering the interior of the bearing, or preventing rust and corrosion.

Lubrication method

The lubrication methods for bearings are divided into grease lubrication and oil lubrication. In order for bearings to function well, the first step is to choose a lubrication method that is suitable for the usage conditions and purposes. If only lubrication is considered, the lubricity of oil lubrication has the advantage. However, grease lubrication has the advantage of simplifying the structure around the bearing. Compare the advantages and disadvantages of grease lubrication and oil lubrication. Special attention should be paid to the amount of lubrication, whether it is oil lubrication or grease lubrication. Insufficient lubrication with too little amount will affect the bearing life, while too much amount will generate large resistance and affect the speed.

seal

The sealing of bearings can be divided into two types: self sealing and external sealing. The so-called bearing with built-in sealing refers to manufacturing the bearing itself into a device with sealing performance. Such as bearings with dust covers, sealing rings, etc. This type of seal takes up very little space, is easy to install and disassemble, and has a relatively low cost. The so-called bearing external sealing performance device refers to a sealing device with various properties manufactured inside the installation end cover and other components. The external sealing of bearings is divided into two types: non-contact sealing and contact sealing. Non contact sealing is suitable for high-speed and high-temperature applications, with different structural forms such as gap type, labyrinth type, and gasket type. Contact seals are suitable for medium and low-speed working conditions, and commonly used structural forms include felt seals, cup seals, etc.

According to the working conditions and environment of bearings, various sealing forms are often comprehensively used in engineering design to achieve better sealing effects. The selection of external seals for bearings should consider the following main factors:

1.

Bearing lubricants and types (grease and oil);

2.

The working environment of bearings and the size of the occupied space;

3.

Advantages of the supporting structure of the shaft, allowing for angular deviation;

4.

The circumferential velocity of the sealing surface;

5.

The working temperature of the bearing;

6.

Manufacturing cost.

Pay attention to the issue

broadcast

edit

Installation and maintenance

key points

From a usage perspective, to ensure the reliable operation of bearings, the following points should be noted:

1. Improve lubrication quality, control oil pressure, temperature, and flow rate, and strengthen oil filtration.

2. Use fuel and lubricating oil that comply with regulations.

3. Controlling the temperature state of diesel generator sets is unfavorable for operation under conditions of supercooling and overheating. In cold weather, the diesel engine should be preheated before starting, and the crankshaft should be manually rotated to allow the oil to enter the friction surface.

4. The surface quality and geometric shape of bearings and shaft necks should be strictly guaranteed.

5. The bearing clearance should be appropriate. If the generator set is too large, it will cause impact, while if it is too small, it will result in poor lubrication and may burn the bearings.

How to ensure reliable operation of bearings

Generally speaking, from a usage perspective, the following points should be noted:

1. The bearing clearance should be appropriate. If it is too large, it will cause impact, while if it is too small, it will result in poor lubrication and may burn the bearings;

2. The surface quality and geometric shape of bearings and shaft necks should be strictly guaranteed;

3. Improve lubrication quality, control oil pressure, temperature, and flow rate, and strengthen oil filtration;

4. Use fuel and lubricating oil that comply with regulations.

In order to fully utilize and maintain the expected performance of bearings in the long term, regular maintenance and upkeep (regular inspections) must be carried out effectively. Early detection of faults and prevention of accidents through appropriate regular inspections are crucial for improving productivity and economy.

Install

The correct installation of bearings affects accuracy, lifespan, and performance. Therefore, the design and assembly department should conduct thorough research on the installation of bearings. I hope to install according to the homework standards. The items for homework standards are usually as follows:

(1) Cleaning bearings and their related components

(2) Check the dimensions and precision machining of related components

(3) Installation

(4) Inspection after installing the bearings

(5) Supply lubricant

I hope to open the bearing packaging just before installation. Generally lubricated with grease, without cleaning, directly filled with grease. Lubricating oil lubrication is not necessary for regular use, but for instrument or high-speed bearings, they should be cleaned with clean oil to remove rust inhibitors applied to the bearings. Bearings without rust inhibitors are prone to rusting, so they cannot be left unattended. Furthermore, bearings that have been sealed with grease can be used directly without cleaning.

The installation method of bearings varies depending on the bearing structure, fit, and conditions. Generally, due to the rotation of the shaft, the inner ring requires interference fit. Cylindrical bore bearings are often pressed in with a press or hot installed. In the case of a tapered hole, it can be directly installed on the tapered shaft or installed with a sleeve.

When installed on the casing, there is usually more clearance fit and interference fit on the outer ring. It is usually pressed in with a press or there is also a cold shrink fit method for installation after cooling. When using dry ice as a coolant and installing it with cold shrink fit, moisture in the air will condense on the surface of the bearing. So, appropriate rust prevention measures are needed.

maintenance

disassemble

The disassembly of bearings is a regular maintenance and is carried out during bearing replacement. After disassembly, if it is necessary to continue using or to check the condition of the bearings, the disassembly should be carried out with the same care as during installation. Be careful not to damage the various parts of the bearing, especially the disassembly of interference fit bearings, which is difficult to operate.

It is also very important to design and manufacture disassembly tools as needed. During disassembly, research the disassembly method, sequence, and investigate the fitting conditions of the bearings according to the drawings to determine the disassembly operation.

The disassembly of the outer ring with interference fit requires setting several outer ring compression screws on the circumference of the shell in advance, tightening the screws evenly while disassembling. These screw holes are usually covered with blind plugs, tapered roller bearings, and other separable bearings. Several cuts are made on the shoulder of the housing cover, and they can be disassembled using pads, a press, or gently tapped.

The disassembly of the inner ring can be done by using a press to pull it out. At this point, it is important to ensure that the inner ring bears its pulling force. Furthermore, the illustrated pull-out card holder is often used, and regardless of the type of card holder, it must be firmly attached to the inner ring side. For this, it is necessary to consider the size of the shaft shoulder or study the machining of grooves at the shoulder for the use of drawing fixtures.

The inner ring of large bearings is disassembled using hydraulic pressure method. By setting oil pressure in the oil hole of the bearing, it is easy to pull out. Bearings with a large width can be disassembled using both hydraulic pressure and drawing tools.

The inner ring of cylindrical roller bearings can be disassembled using induction heating method. The method of heating the local area in a short period of time to expand the inner ring and then pulling it out. In situations where a large number of such bearing inner rings need to be installed, induction heating method is also used.

wash

When disassembling the bearing for inspection, first use photography or other methods to make a good appearance record. In addition, it is necessary to confirm the amount of remaining lubricant and sample the lubricant before cleaning the bearings.

a、 The cleaning of bearings is divided into coarse cleaning and fine cleaning, and a metal mesh can be placed at the bottom of the container being used.

b、 During rough cleaning, use a brush or other tool to remove lubricating grease or adhesive from the oil. If the bearing is rotated in oil at this time, be careful not to damage the rolling surface due to foreign objects or other factors.

c、 When performing precision cleaning, slowly rotate the bearing in oil, and it must be done carefully.

The commonly used cleaning agents are neutral, water free diesel or kerosene, and sometimes warm alkaline solutions are also used as needed. Regardless of the type of cleaning agent used, it is important to filter regularly to maintain cleanliness.

After cleaning, immediately apply rust proof oil or grease to the bearings.

Inspection and judgment

In order to determine whether the removed bearing can be reused, it is important to focus on checking its dimensional accuracy, rotational accuracy, internal clearance, as well as mating surfaces, raceway surfaces, retainers, and sealing rings. Large bearings cannot be rotated by hand, so it is important to check the appearance of the rolling elements, raceway surfaces, retainers, and retaining surfaces. The higher the importance of bearings, the more careful the inspection must be.

Reasons and elimination methods for heating of rolling bearings

Low bearing accuracy: Choose bearings with the specified accuracy level.

Spindle bending or non concentric box holes: repair the spindle or box.

Poor lubrication: Use lubricating materials of the specified grade and clean them appropriately.

Low assembly quality: Improve assembly quality.

Inner shell running of bearings: Replace bearings and related worn parts.

Excessive axial force: Clean and adjust the gap between the sealing ring to be between 0.2-0.3mm, correct the diameter of the impeller balance hole, and verify the static balance value.

Bearing damage: Replace the bearing.

safekeeping

The bearings are coated with an appropriate amount of anti rust oil and packaged with anti rust paper at the factory. As long as the packaging is not damaged, the quality of the bearings will be guaranteed. However, for long-term storage, it is advisable to store on a shelf 30cm above the ground under conditions of humidity below 65% and temperature around 20 ℃. In addition, the storage location should avoid direct sunlight or contact with cold walls.

quality inspection

National Standard

1. National standard for vibration acceleration (commonly known as Z-standard)

This standard was established relatively early to determine the quality level of bearings by measuring the vibration acceleration value during rotation. It is divided into three quality levels, Z1, Z2, and Z3, from low to high. At present, domestic bearing manufacturers are still using vibration acceleration values to measure the quality of bearings, which simply reflect the fatigue life of bearings.

2. Vibration speed standard (commonly known as V-standard)

Due to the fact that the original vibration acceleration standard has not been abolished, this standard appeared as a standard issued by the Ministry of Machinery Industry, and was developed based on European standards combined with China's actual situation and needs, to classify the quality level of bearings by detecting their vibration speed (equivalent to national standards). Divided into five quality levels: V, V1, V2, V3, V4. The quality grades of various ball bearings from low to high are V, V1, V2, V3, V4; The quality grades of roller bearings (cylindrical, conical) are divided into four quality grades from low to high: V, V1, V2, and V3.

It reflects the quality of the bearing by detecting the vibration velocity of different frequency bands (low frequency, medium frequency, high frequency) of the bearing. It is possible to roughly analyze whether there are geometric dimension problems (such as steel ring ellipses), quality problems of raceways/rolling elements, and quality problems of retaining frames in bearings, which has made significant progress compared to using vibration acceleration to examine bearing quality. At present, the domestic export of bearings to Europe, as well as the aerospace industry, are all subject to bearing quality testing according to this standard. At the same time, testing the quality of imported bearings in Europe and distinguishing imported bearings provide feasible means.

There are two parallel standards for bearing quality testing, and bearings with a high quality level of "Z standard" may not have good quality performance when tested with "V standard", and there is no corresponding relationship between the two. This requires special attention in the quality inspection of bearings.

Quality identification

We usually identify the quality of equipment bearings from the following aspects:

1. Is the outer packaging clear

In general, brands produced by legitimate manufacturers have their own dedicated designers to design the external packaging and arrange factories with qualified production conditions for production. Therefore, the packaging of the product should be very clear and unambiguous, from lines to color blocks.

2. Is the steel stamp clear

Each bearing product will have its brand name, number, etc. printed on the bearing product body. Although the font is very small, products produced by legitimate manufacturers use steel stamp technology for printing, and are pressed before being overheated. Therefore, although the font is small, it is deeply recessed and very clear. Usually, the font of counterfeit products is not only blurry, but also due to rough printing technology, the font floats on the surface, and some can even be easily erased by hand or have serious hand marks.

3. Is there any noise

Grasp the inner sleeve of the bearing with your left hand and gently rotate the outer sleeve with your right hand, listening for any noise during the operation of the bearing. Due to the outdated production conditions and manual workshop style operation of most counterfeit products, impurities such as dust and sand are inevitably mixed into the bearing body during the production process, resulting in noise or poor operation when the bearing rotates. This is the key to determining whether a product is branded by a legitimate manufacturer with strict production standards and machine operation.

4. Surface

We should pay special attention to whether there are cloudy oil stains on the surface when purchasing imported bearings. Due to the gap between domestic anti rust technology and manufacturing countries, it is easy to leave thick oil stains on the bearing body during anti rust treatment. When touched by hand, it feels sticky and thick, while there are almost no traces of anti rust oil on foreign bearings. According to industry insiders, those who are particularly attentive can smell a special odor on imported bearings, which is the smell of rust proof oil.

5. Is the chamfer uniform

The so-called chamfer of bearings refers to the junction between the horizontal and vertical surfaces. Due to production technology limitations, counterfeit bearing products are not processed satisfactorily at these corners, which we can easily distinguish.

6. Packaging

Bearing packaging is divided into inner packaging and outer packaging

After the bearings are manufactured and inspected to be qualified, they are cleaned and rust proofed, and then placed in the inner packaging to achieve the purpose of waterproof, moisture-proof, dustproof, impact resistant, maintaining the quality and accuracy of the bearings, and facilitating use and sales.

The inner packaging of bearings is divided into three categories according to the rust prevention period:

① Short rust prevention period packaging: The rust prevention period is 3-6 months, suitable for bearings that are shipped in large quantities to the same customer and put into use in a short period of time. By mutual agreement, simple packaging is adopted based on the principle of convenience of use.

② General rust prevention period packaging: The rust prevention period is one year, suitable for general purpose bearings.