Zhejiang Zhengda Auto Bearing Co., Ltd is one of the largest bearing manufacturers in China. Her products are made for mainly for aftermarket users.The mainly products are :Tapered Roller Bearing Metric Size, Double Row Tapered Roller Bearings, Auto Wheel Hub Units, etc. The annual productivity of 6 million tapered roller bearings, 3.5 million double row tapered roller bearings, 1 million wheel hub units. The quality of tapered roller bearing and Automotive Wheel Hub Units is playing a pivotal role in Chinese bearing industry. Double row tapered roller bearing: JRM3939/JRM3968XD;JRM4240/JRM4276XD;JRM3939/JRM3972XD;JRM2525/JRM2552XD;JRM2828/JRM2858XD;JRM3434/JRM3464XD; JRM3535/JRM3572XD;JRM3535A/JRM3565XD;JRM3637/JRM3664XD;JRM3938/JRM3970XD;JRM3941/JRM4175XD;JRM4040/JRM4072XD; JRM4242A/JRM4276A;JRM4242B/JRM4272XD;JRM4242/JRM4282XD;JRM4345/JRM4582XDJRM4545A/JRM4584XD;JRM4949/JRM4984XD; JRM4949A/JRM4984AXD.