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Title:
ROTATION TRANSMISSION DEVICE WITH BUILT-IN ONE-WAY CLUTCH
Document Type and Number:
Japanese Patent JP2006300167
Kind Code:
A
Abstract:

To provide a rotation transmission device with a built-in one-way clutch capable of preventing abrasion from occurring when a roller clutch built in the rotation transmission device with the built-in one-way clutch is switched from a lock state to an over-run state, and excellent in durability.

In the rotation transmission device with the built-in one-way clutch provided with a sleeve 11, a pulley 12 arranged on an outer periphery of the sleeve 11 coaxially with the sleeve 11, rolling bearings 2 disposed between an outer peripheral surface of the sleeve 11 and an inner peripheral surface of the pulley 12, and the one-way clutch 34, a clutch inner ring 31 forming a cam surface is formed by carbonitriding an alloy material containing C, Si, Mn, Cr, V, Mo and Ni in the predetermined concentration and the remainder being Fe and inevitable impurities at a temperature of 920 degrees or more wherein the surface has the C concentration of 0.7 mass% or more and 1.3 mass% or less, and N concentration of 0.15 mass% or more and 0.3 mass% or less, and by conducting annealing treatment at least once.


Inventors:
Shinoda, Osamu
Yamamura, Kenji
Application Number:
JP2005000120901
Publication Date:
November 02, 2006
Filing Date:
April 19, 2005
Export Citation:
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Assignee:
NSK LTD
International Classes:
F16D41/06; F16H55/36
Attorney, Agent or Firm:
森 哲也
内藤 嘉昭
崔 秀▲てつ▼