Qulity control

Heat Treatment

As a key production process, world advanced technology - AICHELIN salt bath heat treatment system has been applied. It can make Martensite and Bainite process respectively according to different bearing working conditions. Comparing with common heat treatment, it can increase bearing life by more than 30%.

Raw Material

We select high purity steels, such as SKF3, Xingcheng Special Steel, Daye Special Steel,and Dongbei Special Steel. Each batch of raw material will be under very strict inspection before manufacturing


We have complete modern testing equipment, such as metallographic microscope, roundness meter, profiler, image measuring instrument, length measuring instrument, and magnetic particle flaw detector. We strictly supervise each production process to ensure product quality reaches P6 or above.

About Us 

Shandong Huagang Precision Bearing Manufacturing Co., Ltd., located in Panzhuang Industrial Park, Linqing City, Shandong Province, is a professional manufacturer of large, medium and small thrust bearings and spherical roller bearings. With an annual output of more than 3 million sets of bearings, the products sell well all over the country and are highly praised by users.


seo seo