BM Series

40-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 :40
D :90
B :23
Designation :7308BM
Basic Load Ratlngs(kN)
Cr :46.5
Cor :29.5
Limited Speed(rpm)
Grease :6300
Oil :8500