Bearing Service Co.

Z-Mill Bearings

Our technical expertise combined with 70 years of manufacturing precision bearing products for extreme duty applications makes Bearing Service Company of Pennsylvania a leading source for Z-Mill bearings (also known as Sendzimir bearings) as direct OEM replacements. Offered in sizes from ZR33 to ZR21 in double row and triple row configurations, each bearing is precision manufactured and ground to within exacting ±.0001 in tolerances to ensure reliable long term performance in continuous duty steel mill operations.