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


Bearing No. 30334JR

Specification data (main dimensions, etc.)

d(mm)170
D(mm)360
T(mm)80
B(mm)72
C(mm)62
r(min.)(mm)5
r1(min.)(mm)4
Basic load ratings : Cr(kN)1300
Basic load ratings : C0r(kN)1370
Fatigue load limit : Cu(kN)155
Limiting speeds(Grease lub.)(min-1)1000
Limiting speeds(Oil lub.)(min-1)1300
Load center spread : a(mm)67.9
Constant e0.35
Axial load factors : Y11.74
Axial load factors : Y00.96

Mounting dimensions,weight (reference)

da(min.)(mm)192 mm
db(max.)(mm)218 mm
Da(max.)(mm)342 mm
da(min.)(mm)306 mm
db(min.)(mm)329 mm
Sa(min.)(mm)13 mm
Sb(min.)(mm)18 mm
ra(max.)(mm)4 mm
rb(max.)(mm)3 mm
Mass(Refer.)(kg)37.5 kg
JTEKT

2026/07/22