Street Address: No.52 Hanjiang Road, New District, Changzhou, Jiangsu
China First Automobile (Group) Works,Dongfeng Automobile Company,China National Heavy Duty Truck (Group) Company, Nanjing IVECO automobile Co., Ltd., Changan Automobile (Group) Co., Ltd. ,Shenyang Jinbei Automobile Co., Ltd. ,Shanghai Automotive Co., Ltd.
The needle rollers and cage assembly components are the bearing's independent elements (units). The needle rollers are guided by the cages. The bearing without the (inner and outer) rings, small radial (cross)section , large capacity of heavy load, suitable for the braced framing ( support structure) in which the radial installation size will be limited. The surface of the bearing journal and the surface of the outer shell which are assorted with the bearing can be used directly as the internal and external rolling surfaces, its surface hardness shall be HRC 58-64 , the surface effective hardening depth shall be 0.6 - 1 mm , the hardness of the raceway shall be 0.32 μm (Ra) normally. When the shaft rotating accuracy is required, the hardness of the raceway shall be 0.20μm (Ra).