US 12,215,742 B2
Sliding member
Tetsuya Ogawa, Inuyama (JP); Erina Yasuda, Inuyama (JP); and Kenji Nimura, Inuyama (JP)
Assigned to DAIDO METAL COMPANY LTD., Aichi (JP)
Appl. No. 17/774,069
Filed by DAIDO METAL COMPANY LTD., Nagoya (JP)
PCT Filed Nov. 27, 2020, PCT No. PCT/JP2020/044260
§ 371(c)(1), (2) Date May 3, 2022,
PCT Pub. No. WO2021/112008, PCT Pub. Date Jun. 10, 2021.
Claims priority of application No. 2019-218760 (JP), filed on Dec. 3, 2019.
Prior Publication US 2022/0381292 A1, Dec. 1, 2022
Int. Cl. F16C 33/20 (2006.01)
CPC F16C 33/201 (2013.01) 6 Claims
OG exemplary drawing
 
1. A sliding member comprising:
a resin overlay layer on a sliding-surface side of a bearing alloy layer,
wherein the resin overlay layer includes
a resin binder, and
20% by volume or more of solid lubricant particles with an anisotropic shape dispersed in the resin binder,
when a virtual straight line that is parallel to the sliding surface is defined as being located at 0°, a virtual axis that is perpendicular to the sliding surface is defined as being located at 90°, an angle formed by the straight line and the major axis of the particles is defined as θ, and the total number of the particles included in a given observation region of the resin binder is defined as N,
a rate R1=N1/N of the number N1 of first particles with the angle θ being 70°≤θ≤90° from among the particles is 3%≤R1≤20%, and
a rate R2=N2/N of the number N2 of second particles with the angle θ being θ≤20° from among the particles is 35%≤R2≤65%.