Koyo
FOR REFERENCE ONLY
  • Tapered roller bearings
  • Single-row
  • Metric series
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Bearing No. 30219JR

Specifications
(Boundary dimensions ...etc)

d(mm)95
D(mm)170
T(mm)34.5
B(mm)32
C(mm)27
r(min.)(mm)3
r1(min.)(mm)2.5
Basic load ratings : Cr(kN)289
Basic load ratings : C0r(kN)299
Fatigue load limit : Cu(kN)44.0
Limiting speeds(Grease lub.)(min-1)2200
Limiting speeds(Oil lub.)(min-1)3000
Load center spread : a(mm)34.9
Constant e()0.42
Axial load factors : Y1()1.43
Axial load factors : Y0()0.79

Mounting dimensions

da(min.)(mm)109
db(max.)(mm)110
Da(max.)(mm)158
Da(min.)(mm)149
Db(min.)(mm)159
Sa(min.)(mm)5
Sb(min.)(mm)7.5
ra(max.)(mm)2.5
rb(max.)(mm)2

Refer.

(Refer.)Mass(kg) 3.20
JTEKT

2025/06/12