公开(公告)号：US20240084853A1

公开(公告)日：2024-03-14

申请号：US17767891

申请日：2020-10-08

申请人： NTN CORPORATION

发明人： Takayuki KAWAMURA ,  Ryouta KONDOU ,  Makoto SEKI ,  Susumu YAMAJI

IPC分类号： F16C33/66 ,  C10M107/02 ,  C10M115/08 ,  C10M169/02 ,  F16C19/18

CPC分类号： F16C33/6633 ,  C10M107/02 ,  C10M115/08 ,  C10M169/02 ,  F16C19/183 ,  F16C2326/02

摘要： To provide an axle bearing having a low torque property and superior bearing lifetime. A hub bearing 6 is configured to rotatably support a wheel of a vehicle, and has a grease composition 10 sealed in an inner space thereof. The grease composition 10 contains a base oil and a thickener. The shear stress of the grease composition at the shear rate of 1,000-10,000 s−1 at 25° C. is 3,000 Pa or less. The viscosity of the grease composition is 1 Pas or less. The yield stress of the grease composition at 25° C. measured by a dynamic viscoelasticity analysis method using a rheometer is 1,300-3,000 Pa.