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Company Info
Hangzhou Zhongjian Auto Parts Co., Ltd.

Street Address: 18 Ningdong Road, Economic and Technological Development Zone, Xiaoshan District, Hangzhou City, Zhejiang Province. China

Country/Region: China

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Cylindrical Rollers

Cylindrical Rollers

Market Type:  After Market

Product Attribute:

Outside Diameter:+0.000--0.005(G5)mm

Production Description:

Cylindrical rollers are used in automotive transmissions, universal joints, front wheeldrive, constant velocity joints water pump bearings, roller clutches, rollerized cam lifters, rocker arms, cam rollers, starter drives and as pins and dowels for various applications. Specifications of needle rollers: 1) Materials standard: AISI 52100 or SAE 52100 bearing quality chrome steel 2) Hardness standard: HRC 58 to 64 3) Surface finish standard: OD ground and lapped to surface finish of 0.020um Ra Max 4) Alternative: surface finish of 0.025 um Ra Max is available on request 5) Tolerance outside diameter (mm): standard +0.000 to -0.005 (G5) 6) Length standard: +0.000 to -0.500 7) Applications of needle rollers 8) Needle rollers are available in special end forms providing performance benifits for specific kinds of applications as shown below a) I-Type BR (rounded ends) b) II-Type BP (flat underground ends) c) III-Type BPM (flat ground ends)

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