Bearings,as important components in contemporary mechanical equipment,mainly support the mechanical rotating body,which can reduce the friction coefficient during its movement and ensure its rotation accuracy.
Bearing Wheel with double row two bearings is type of heavy duty sliding door rollers can bear with heavty duty capacity ,and the material is high precision Chrome steel Gcr15,outside coated material is POM can working smooth for you .
198-5018 bearings are used in the reduction gearbox system of Caterpillar heavy machinery equipment：
1985018 BEARING Caterpillar parts fit:304.5, 305CR, 304CR, 305.5, 306
20Y-27-22230 bearings are used in the Excavator Final drive system of KOMATSU：
20Y-27-22230 BEARING KOMATSU parts:PC220LC-8,PC240-8K,,PC228US-8,PC100L-6,PC158USLC-2,PC158US-2,PC200-6Z,PC200-7,PC210-6,PC210-7
