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Product Catalog

Spherical Ball Bearing

Inquiry

31308

Principal dimensions (mm)
  • d: 40
  • D: 90
  • T: 25.25
  • B: 23.0
  • C: 17.0
  • r 1,2 min: 2.0
  • r 3,4 min: 1.5
Basic load ratings (kn)
  • Cr: 85.4
  • Cor: 94.0
Speed ratings (r/min)
  • Grease: 4000
  • Oil: 5300
a mm
  • a: 29
Fitting dimensions mm
  • d a max: 53.0
  • d b max: 49
  • D a max: 81
  • D a min: 77
  • D b min: 82.0
  • C a min: 3
  • C b min: 5.0
  • r a max: 1.5
  • r b max: 1.5
Calculation coefficient
  • e: 0.35
  • Y: 1.70
  • Yo: 0.900