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Dongtai Zhipin Hardware Machinery Co., Ltd
Double layered anti loosening washer
NegotiableUpdate on 05/20
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Overview
DIN25201 double layered anti loosening washer is composed of two paired pieces, with radial inclined fine teeth on the outer side and radial wide tooth surfaces with larger inclination angles on the inner side, used to prevent loose bolt connections. The materials include S60C, SK5, 65Mn, 304, 316, etc. The specifications are metric NL3-64 and American 5 # -3 ", with standard and widened types.
Product Details
DIN25201Double layered anti loosening washerComposed of two pairs, the outer side has radial inclined fine teeth, while the inner side has a radial wide tooth surface with a larger inclination angle. During assembly, the inner oblique tooth surfaces of the two washers are opposite, and the outer radial tooth surfaces are in a meshing state with the contact surfaces at both ends. Used to prevent loose bolt connections.
DIN25201Double layered anti loosening washerSpecification metric NL3-64, American 5 # -3 ", available in standard and widened types. Material and surface treatment: Available materials include S60C, SK5, 65Mn, 304, 316, etc. Surface treatments include Dacromet, galvanizing, and whitening.
Working principle: The inclination angle of the inclined teeth on the inner side of the washer is greater than the inclination angle of the bolt thread. When the connecting part is subjected to vibration and the bolt tends to loosen, only relative displacement between the inclined teeth on the inner side of the two washers is allowed, generating tension lift and preventing loosening, achieving 100% anti loosening effect.
Product features: It has the characteristics of high hardness, earthquake resistance, anti loosening self-locking, and reusability, which can effectively resist long-term continuous vibration and ensure the reliability of the connection.
Application areas: Widely used in metallurgy, defense industry, rail transit, machinery manufacturing, power, new energy, petrochemicals, automotive parts, shipbuilding industry, aerospace and other industries.
