60 mm x 130 mm x 31 mm Timken 31312 tapered roller bearings

We work closely M06288 Product Group with our 60 mm x 130 mm x 31 mm Timken 31312 tapered roller bearings manufacturing partners to bring AST BEARING OF AMERICA CORP. the ABB MOTORS AND MECHA Manufacturer Name best value to 60 mm x 130 mm x 31 mm customers.

What is 31312 bearing cross reference？