Title:
機械部品
Document Type and Number:
Japanese Patent JP3827245
Kind Code:
B2
Abstract:
A mechanical part having a rolling contact surface (11a) with many isolated minute recesses. A maximum height Ry of a roughness curve R obtained by cutting this contact surface (11a) with a plane perpendicular thereto is 1-3 mu m, and a peak height Rp with respect to the center line of the roughness curve R and a valley depth Rv with respect thereto have the relation of Rp/Rv≤0.3. This indicates that the contact surface (11a) has very low peaks of a relatively high distribution and very deep valleys of a relatively low distribution. Owing to the very low peaks of a relatively high distribution, a sufficiently wide contact area is secured. Owing to the valleys of a low distribution and a large depth, oil reservoirs of a sufficient capacity are formed.
Inventors:
Takashi Sada
Application Number:
JP51959197A
Publication Date:
September 27, 2006
Filing Date:
November 20, 1996
Export Citation:
Assignee:
JTEKT Corporation
International Classes:
F16H53/06; F01L1/16; F01L1/18; F16C13/00; F16C33/30
Domestic Patent References:
| JP3172608A | ||||
| JP6050344A | ||||
| JP7042743A |
Attorney, Agent or Firm:
Inaoka cultivation