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


Bearing No. 30215JR

Specification data (main dimensions, etc.)

d(mm)75
D(mm)130
T(mm)27.25
B(mm)25
C(mm)22
r(min.)(mm)2
r1(min.)(mm)1.5
Basic load ratings : Cr(kN)178
Basic load ratings : C0r(kN)181
Fatigue load limit : Cu(kN)28.2
Limiting speeds(Grease lub.)(min-1)2900
Limiting speeds(Oil lub.)(min-1)3900
Load center spread : a(mm)27.6
Constant e0.44
Axial load factors : Y11.38
Axial load factors : Y00.76

Mounting dimensions,weight (reference)

da(min.)(mm)85 mm
db(max.)(mm)86 mm
Da(max.)(mm)121.5 mm
da(min.)(mm)115 mm
db(min.)(mm)124 mm
Sa(min.)(mm)4 mm
Sb(min.)(mm)5 mm
ra(max.)(mm)2 mm
rb(max.)(mm)1.5 mm
Mass(Refer.)(kg)1.42 kg
JTEKT

2026/07/05