Liduolu needle roller bearing KT12 * 17 * 09.8S

Liduolu needle roller bearing KT12 * 17 * 09.8SThe selection of bearings is determined based on the requirements of the load, service life, and operational reliability.

Generally speaking, the lifespan of bearings is determined based on their basic rated load. For rotating bearings, the basic rated dynamic load (C) is used for calculation; For bearings that are stationary or do not rotate frequently, the basic rated static load (CO) is used for calculation. The C and Co values of bearings produced by Liduolu are designed and manufactured according to the specifications of ISO281 and ISO076. The main reasons for bearing failure are as follows: (1) insufficient load capacity of the rolling needle, resulting in fatigue failure; (2) Poor design, manufacturing or material quality of the retainer, resulting in rupture during operation; (3) Mismatch or wear of the rolling surface of the opponent in contact with the needle roller; (4) Abnormal friction or insufficient lubrication can cause overheating and damage. Therefore, in order for the needle roller bearing to perform as expected, in addition to considering the needle roller load conditions, it is also necessary to consider factors such as the selection of needle roller and retainer materials, the structural strength of the retainer itself, heat treatment conditions, surface roughness of the needle roller and track surface, lubrication conditions, as well as the machining accuracy and fit clearance of related components.

The main function of the retainer in the Liduolu needle roller bearing is to ensure that the needle roller can guide the inner and outer track surfaces during operation, maintain the line contact state, and enable the needle roller to withstand large loads without damage. Therefore, maintaining the stability and consistency of the parallelism standards of each needle roller slot in the retainer plays a crucial role in the overall operational quality of the needle roller bearing. Due to different usage environments, the materials used in the needle roller bearing retainer designed and produced by Liduolu can be divided into four types: low carbon steel, alloy steel, engineering plastics, and aluminum alloy.Liduolu needle roller bearing KT12 * 17 * 09.8SGenerally speaking, bearings for high-speed engines should use retainers made of alloy steel or aluminum alloy; Low carbon steel or engineering plastic retainers can be used for gearboxes or bearings for medium and low speeds.