BALL BEARING

The 552 043 72 BEARING, BALL (55204372, 552-043-72, BALL BEARING 55204372) is a mining-duty precision bearing engineered for Sandvik drilling rigs, ROC series machinery, and underground jumbos. The 552 043 72 BEARING, BALL provides high-accuracy rotational support for shafts, gears, and mechanical assemblies exposed to extreme vibration, radial load, axial load, and continuous drilling forces.

This 552 043 72 BEARING, BALL is made from hardened bearing steel with optimized raceway geometry, precision-ground balls, and low-friction lubrication channels to ensure maximum load capacity and long service life. OEM identifiers 55204372 and 552-043-72 guarantee compatibility across Sandvik parts systems.

The 552 043 72 BEARING, BALL minimizes rotational resistance, stabilizes shaft alignment, reduces heat generation, and supports efficient energy transfer in drifter systems, hydraulic motors, gear drives, and feed mechanisms. Proper bearing performance improves drilling accuracy, reduces mechanical noise, and extends equipment lifespan in mining and tunneling environments.

Inspect the 552 043 72 BEARING, BALL for pitting, corrosion, lubrication loss, abnormal noise, or excessive play. Replace 552 043 72 immediately if vibration increases or rotational smoothness declines.