Koyo
FOR REFERENCE ONLY
  • Tapered roller bearings
  • Single-row
  • Metric series
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Bearing No. 302/28CR

Specifications
(Boundary dimensions ...etc)

d(mm)28
D(mm)58
T(mm)17.25
B(mm)16
C(mm)13
r(min.)(mm)1
r1(min.)(mm)1
Basic load ratings : Cr(kN)48.5
Basic load ratings : C0r(kN)41.7
Fatigue load limit : Cu(kN)5.85
Limiting speeds(Grease lub.)(min-1)7000
Limiting speeds(Oil lub.)(min-1)9300
Load center spread : a(mm)16.0
Constant e()0.55
Axial load factors : Y1()1.10
Axial load factors : Y0()0.60

Mounting dimensions

da(min.)(mm)33.5
db(max.)(mm)34
Da(max.)(mm)52.5
Da(min.)(mm)47
Db(min.)(mm)55
Sa(min.)(mm)2
Sb(min.)(mm)4
ra(max.)(mm)1
rb(max.)(mm)1

Refer.

(Refer.)Mass(kg) 0.205
JTEKT

2025/06/01