| 摘要 |
<p>A shim member for assembling a shaft extending through a shaft shoulder, and a needle bearing is provided. The shim member comprises a shim body. The shim body is of an annular structure and comprises a first end face and a second end face which are opposite to each other. The shim member receiving the shaft is sandwiched between the shaft shoulder and the needle bearing. The first end face contacts an end face of the needle bearing, while the second end face contacts with a shaft shoulder and is provided with multiple protrusions. The surface of each of the protrusions is of a dome structure, and the basal diameter M of each of the protrusions is consistent with the radial width L of the shim body. The protrusions increase a clearance between the second end face and the shaft shoulder to allow a lubricant to enter the clearance.</p> |
