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


Bearing No. 33220JR

Specification data (main dimensions, etc.)

d(mm)100
D(mm)180
T(mm)63
B(mm)63
C(mm)48
r(min.)(mm)3
r1(min.)(mm)2.5
Basic load ratings : Cr(kN)540
Basic load ratings : C0r(kN)680
Fatigue load limit : Cu(kN)85.8
Limiting speeds(Grease lub.)(min-1)2100
Limiting speeds(Oil lub.)(min-1)2800
Load center spread : a(mm)45.7
Constant e0.40
Axial load factors : Y11.48
Axial load factors : Y00.82

Mounting dimensions,weight (reference)

da(min.)(mm)114 mm
db(max.)(mm)112 mm
Da(max.)(mm)168 mm
da(min.)(mm)151 mm
db(min.)(mm)172 mm
Sa(min.)(mm)10 mm
Sb(min.)(mm)15 mm
ra(max.)(mm)2.5 mm
rb(max.)(mm)2 mm
Mass(Refer.)(kg)6.92 kg
JTEKT

2026/07/28