Yusion was founded in 1993, is specialized in producing AISI 52100 Chrome Steel Balls & AISI S-2 Rockbit Balls from 3/16" to 6' '. the grade of our products ranges from G10 to G200, which conform to ASTM/AISI and international standard like ISO, JIS & DIN.
the chrome steel balls we produced are mainly applied in slewing ring bearing for wind turbines, such as single/double row ball bearing, single cross roller bearing, three roller bearing double row angular contact ball bearing.
the S-2 tool steel balls we produced are mainly applied in tricone rock bits/tricone bit, screw drilling bearing/bearing for downhole motors and mud lubricated bearing assemblies.
We can also manufacture steel balls according to customer' s detailed technical requirements. Moreover, our balls have passed ISO 9001:2000, SGS and D& B quality system certification.