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


Bearing No. 30206JR

Specification data (main dimensions, etc.)

d(mm)30
D(mm)62
T(mm)17.25
B(mm)16
C(mm)14
r(min.)(mm)1
r1(min.)(mm)1
Basic load ratings : Cr(kN)51.8
Basic load ratings : C0r(kN)44.8
Fatigue load limit : Cu(kN)6.45
Limiting speeds(Grease lub.)(min-1)6500
Limiting speeds(Oil lub.)(min-1)8700
Load center spread : a(mm)14.1
Constant e0.37
Axial load factors : Y11.60
Axial load factors : Y00.88

Mounting dimensions,weight (reference)

da(min.)(mm)35.5 mm
db(max.)(mm)37 mm
Da(max.)(mm)56.5 mm
da(min.)(mm)53 mm
db(min.)(mm)57 mm
Sa(min.)(mm)2 mm
Sb(min.)(mm)3 mm
ra(max.)(mm)1 mm
rb(max.)(mm)1 mm
Mass(Refer.)(kg)0.236 kg
JTEKT

2026/07/22