Koyo
FOR REFERENCE ONLY
  • Tapered roller bearings
  • Single-row
  • Metric series
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Bearing No. 32928JR

Specifications
(Boundary dimensions ...etc)

d(mm)140
D(mm)190
T(mm)32
B(mm)32
C(mm)25
r(min.)(mm)2
r1(min.)(mm)1.5
Basic load ratings : Cr(kN)258
Basic load ratings : C0r(kN)390
Fatigue load limit : Cu(kN)53.2
Limiting speeds(Grease lub.)(min-1)1800
Limiting speeds(Oil lub.)(min-1)2300
Load center spread : a(mm)33.6
Constant e()0.36
Axial load factors : Y1()1.67
Axial load factors : Y0()0.92

Mounting dimensions

da(min.)(mm)150
db(max.)(mm)150
Da(max.)(mm)181
Da(min.)(mm)174
Db(min.)(mm)184
Sa(min.)(mm)6
Sb(min.)(mm)7
ra(max.)(mm)2
rb(max.)(mm)1.5

Refer.

(Refer.)Mass(kg) 2.57
JTEKT

2025/06/01