Koyo
FOR REFERENCE ONLY
  • Self-aligning ball bearings
  • Open type
>

Bearing No. 2308

Specifications
(Boundary dimensions ...etc)

d(mm)40
D(mm)90
B(mm)33
r(min.)(mm)1.5
Basic load ratings : Cr(kN)56.1
Basic load ratings : C0r(kN)13.4
Fatigue load limit : Cu(kN)0.85
Limiting speeds(Grease lub.)(min-1)6200
Limiting speeds(Oil lub.)(min-1)8600
Constant :e()0.43
Axial load factors : Y1()1.47
Axial load factors : Y2()2.27
Axial load factors : Y0()1.54

Mounting dimensions

da(min.)(mm)48
Da(max.)(mm)82
ra(max.)(mm)1.5

Refer.

(Refer.)Mass(kg) 0.925
JTEKT

2025/06/01