公开(公告)号：US20230358278A1

公开(公告)日：2023-11-09

申请号：US18246815

申请日：2021-09-27

Applicant: NSK LTD.

Inventor： Toshikazu YABE ,  Tomoaki MATSUMOTO ,  AZUMA ITO ,  Keisuke YOKOYAMA ,  Nariaki AIHARA ,  Shintaro HONDA

IPC: F16C33/78 ,  F16C33/41 ,  F16C33/44 ,  C10M107/02 ,  C08G69/26 ,  C09K3/10

CPC classification number: F16C33/78 ,  F16C33/41 ,  F16C33/44 ,  C10M107/02 ,  C08G69/26 ,  C09K3/10 ,  C10M2205/0206 ,  C10N2040/02

Abstract: Provided is a rolling bearing using a retainer, particularly a highly reliable retainer in which dimensional stability required for a retainer of an outer ring guide type, ductility required for a crown-type retainer, improvement in adhesion of grease with a poly-α-olefin oil or the like as a base oil, and deformation prevention at a high speed can be achieved. The rolling bearing includes at least an inner ring 1, an outer ring 3, a synthetic resin retainer 9, and a rolling element 7, in which the synthetic resin retainer 9 is formed of a polyamide resin composition including polyamide 410 and a reinforcing fiber material with a content of 0% by weight to 40% by weight.