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

Bearing No. 30215JR

Specifications
(Boundary dimensions ...etc)

d(mm)75
D(mm)130
T(mm)27.25
B(mm)25
C(mm)22
r(min.)(mm)2
r1(min.)(mm)1.5
Basic load ratings : Cr(kN)178
Basic load ratings : C0r(kN)181
Fatigue load limit : Cu(kN)28.2
Limiting speeds(Grease lub.)(min-1)2900
Limiting speeds(Oil lub.)(min-1)3900
Load center spread : a(mm)27.6
Constant e()0.44
Axial load factors : Y1()1.38
Axial load factors : Y0()0.76

Mounting dimensions

da(min.)(mm)85
db(max.)(mm)86
Da(max.)(mm)121.5
Da(min.)(mm)115
Db(min.)(mm)124
Sa(min.)(mm)4
Sb(min.)(mm)5
ra(max.)(mm)2
rb(max.)(mm)1.5

Refer.

(Refer.)Mass(kg) 1.42
JTEKT

2025/06/13