Specifications of KOYO Bearing 1988R/22
Specifications
(Boundary dimensions …etc)
- d
- 28.575 mm
- D
- 57.150 mm
- T
- 19.845 mm
- B
- 19.355 mm
- C
- 15.875 mm
- r(min.)
- 3.6 mm
- r1(min.)
- 1.6 mm
- Basic load ratings : Cr
- 60.8 kN
- Basic load ratings : C0r
- 57.1 kN
- Fatigue load limit : Cu
- 8.25 kN
- Limiting speeds(Grease lub.)
- 7000 min-1
- Limiting speeds(Oil lub.)
- 9300 min-1
- Load center spread : a
- 13.9 mm
- Constant :e
- 0.33
- Axial load factors : Y1
- 1.82
- Axial load factors : Y0
- 1.00
Mounting dimensions
- da
- 39.5 mm
- db
- 33.5 mm
- Da
- 51.0 mm
- Db
- 53.5 mm
- ra(max.)
- 3.6 mm
- rb(max.)
- 1.6 mm
Refer.
- (Refer.)Mass
- 0.227 kg