Standards：GOST/ASTM/GB
Inner diameter (ID)：20mm-1400mm
Outer diameter (OD)：40mm-2000mm
Weight：1.3kg-915kg
Structures：outer ring, inner ring, rollers and cage.
Applications：large and medium-sized motors, locomotive vehicle, machine tool spindles, internal combustion engines, generators, gas turbines, gearboxes, rolling mills, vibrating screens, and lifting and transportation machinery.