Koyo
FOR REFERENCE ONLY
  • Tapered roller bearings
  • Single-row
  • Metric series
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Bearing No. 30302JR

Specifications
(Boundary dimensions ...etc)

d(mm)15
D(mm)42
T(mm)14.25
B(mm)13
C(mm)11
r(min.)(mm)1
r1(min.)(mm)1
Basic load ratings : Cr(kN)27.4
Basic load ratings : C0r(kN)19.2
Fatigue load limit : Cu(kN)2.65
Limiting speeds(Grease lub.)(min-1)10000
Limiting speeds(Oil lub.)(min-1)14000
Load center spread : a(mm)10.0
Constant e()0.29
Axial load factors : Y1()2.11
Axial load factors : Y0()1.16

Mounting dimensions

da(min.)(mm)20.5
db(max.)(mm)22
Da(max.)(mm)36.5
Da(min.)(mm)35
Db(min.)(mm)38
Sa(min.)(mm)2
Sb(min.)(mm)3
ra(max.)(mm)1
rb(max.)(mm)1

Refer.

(Refer.)Mass(kg) 0.098
JTEKT

2025/05/17