We sepcial in miniature, extra-small and small deep-groove ball bearing. And the products have passed ISO9001 quality management system and ISO 14001 environment management system certificate. Our products have found their way into the markets of the USA, EUROPE, JAPAN, TAIWAN, HK AND OTHER PLACES.

While the contact surfaces between the bearing rings and rolling elements are subjected to repeated heavy stress, they must still maintain high rotational precession, therefore, the materials used for bearings rings and rolling
Elements require the following characteristics:
High rolling contact fatigue strength
High hardness
High wear resistance
High dimensional stability
High mechanical strength
The material used by our company is high carbon chromium bearings steel GCrl5-GB/T18254 equivalent such as AISI 52100(U. S. A), DIN 100Cr6(Germany)JIS SUJ2(Japan)and BS 534A99(U. K. ). Its chemical composition is shown in table2.1. The stainless steel chemical composition is shown in table2.2

The materials for cages must have strength to withstand rotation at load and shock load. Low frictional efficiency light weight and be able to with stand operation temperature.

The material used in ribbon cages or crown cages is 08F or spec pressed

Its chemical composition is shown in table2.3 for extra-high speed application, plastic cages such as glass reinforced polyamide are used. These plastic crown cages have the advantages of low torque, long grease life and low noise, etc.