Koyo
FOR REFERENCE ONLY
  • Tapered roller bearings
  • Single-row
  • Metric series
>

Bearing No. 323/28CR

Specifications
(Boundary dimensions ...etc)

d(mm)28
D(mm)68
T(mm)25.75
B(mm)24
C(mm)20
r(min.)(mm)1.5
r1(min.)(mm)1.5
Basic load ratings : Cr(kN)83.2
Basic load ratings : C0r(kN)72.9
Fatigue load limit : Cu(kN)10.5
Limiting speeds(Grease lub.)(min-1)6300
Limiting speeds(Oil lub.)(min-1)8500
Load center spread : a(mm)20.5
Constant e()0.55
Axial load factors : Y1()1.10
Axial load factors : Y0()0.60

Mounting dimensions

da(min.)(mm)36.5
db(max.)(mm)35
Da(max.)(mm)59.5
Da(min.)(mm)51
Db(min.)(mm)64
Sa(min.)(mm)3
Sb(min.)(mm)5.5
ra(max.)(mm)1.5
rb(max.)(mm)1.5

Refer.

(Refer.)Mass(kg) 0.480
JTEKT

2025/06/01