Roller bearings are used in all main shaft and auxiliary drive shaft applications to support pure radial load, and allow for axial shaft elongation due to temperature changes with no additional load effect on the bearing.
608 silicon nitrideballs ceramic bearing with size 8*22*7mm ,this bearing are produce with ceramic Si3N4 and PEEK Seals which can working at temperature at 800 degree .
Tapered Roller Bearings R196Z-4(196.85*241.3*23.812) is used in excavator travel gearbox.
ZHZB Excavator Bearing Factory Supplier Provides High Quality R196Z-4
Double-row cylindrical roller bearing allowing greater radial load;
higher rolling efficiency with inner rings remained onto
the rolls during processing;