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

Bearing No. 30320JR

Specifications
(Boundary dimensions ...etc)

d(mm)100
D(mm)215
T(mm)51.5
B(mm)47
C(mm)39
r(min.)(mm)4
r1(min.)(mm)3
Basic load ratings : Cr(kN)528
Basic load ratings : C0r(kN)521
Fatigue load limit : Cu(kN)68.0
Limiting speeds(Grease lub.)(min-1)1800
Limiting speeds(Oil lub.)(min-1)2400
Load center spread : a(mm)42.7
Constant e()0.35
Axial load factors : Y1()1.74
Axial load factors : Y0()0.96

Mounting dimensions

da(min.)(mm)118
db(max.)(mm)127
Da(max.)(mm)201
Da(min.)(mm)184
Db(min.)(mm)200
Sa(min.)(mm)6
Sb(min.)(mm)12.5
ra(max.)(mm)3
rb(max.)(mm)2.5

Refer.

(Refer.)Mass(kg) 8.49
JTEKT

2025/06/01