BM Series

140-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 :140
D :250
B :42
Designation :7228BM
Basic Load Ratlngs(kN)
Cr :212.3
Cor :197.3
Limited Speed(rpm)
Grease :1800
Oil :2600