Koyo
FOR REFERENCE ONLY
  • Tapered roller bearings
  • Single-row
  • Metric series
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Bearing No. 30330JR

Specifications
(Boundary dimensions ...etc)

d(mm)150
D(mm)320
T(mm)72
B(mm)65
C(mm)55
r(min.)(mm)5
r1(min.)(mm)4
Basic load ratings : Cr(kN)1050
Basic load ratings : C0r(kN)1080
Fatigue load limit : Cu(kN)129
Limiting speeds(Grease lub.)(min-1)1200
Limiting speeds(Oil lub.)(min-1)1500
Load center spread : a(mm)60.8
Constant e()0.35
Axial load factors : Y1()1.74
Axial load factors : Y0()0.96

Mounting dimensions

da(min.)(mm)172
db(max.)(mm)193
Da(max.)(mm)302
Da(min.)(mm)272
Db(min.)(mm)292
Sa(min.)(mm)12
Sb(min.)(mm)17
ra(max.)(mm)4
rb(max.)(mm)3

Refer.

(Refer.)Mass(kg) 26.6
JTEKT

2025/06/01