BM Series

55-BM Series

BM Series: Angular contact ball bearings engineered for high rigidity and precision. Features a special internal design with a 40° contact angle, making them ideal for high-speed machine tool spindles.

  • BM Series
  • BM Series
  • BM Series

Dimension and Parameters

Principal Dimensions(mm)
d :55
D :100
B :21
Designation :7211BM
Basic Load Ratlngs(kN)
Cr :46.3
Cor :36
Limited Speed(rpm)
Grease :5300
Oil :7000