Drilling equipment used in the petroleum industry includes mud pumps, winches, top drives, and cranes. Working conditions: heavy load, more sediment, strong corrosive, shock and vibration. LRZ's deep groove ball bearings, spherical roller bearings, cylindrical roller bearings, tapered roller bearings, thrust cylindrical roller bearings have increased load capacity through enhanced design and manufacturing. Improves corrosion and impact resistance and extends bearing life.