Koyo
FOR REFERENCE ONLY
  • Tapered roller bearings
  • Single-row
  • Metric series


Bearing No. 332/28JR

Specification data (main dimensions, etc.)

d(mm)28
D(mm)58
T(mm)24
B(mm)24
C(mm)19
r(min.)(mm)1
r1(min.)(mm)1
Basic load ratings : Cr(kN)71.9
Basic load ratings : C0r(kN)69.5
Fatigue load limit : Cu(kN)10.0
Limiting speeds(Grease lub.)(min-1)7000
Limiting speeds(Oil lub.)(min-1)9300
Load center spread : a(mm)15.4
Constant e0.34
Axial load factors : Y11.77
Axial load factors : Y00.97

Mounting dimensions,weight (reference)

da(min.)(mm)33.5 mm
db(max.)(mm)34 mm
Da(max.)(mm)52.5 mm
da(min.)(mm)49 mm
db(min.)(mm)55 mm
Sa(min.)(mm)4 mm
Sb(min.)(mm)5 mm
ra(max.)(mm)1 mm
rb(max.)(mm)1 mm
Mass(Refer.)(kg)0.302 kg
JTEKT

2026/07/08