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


Bearing No. 32912JR

Specification data (main dimensions, etc.)

d(mm)60
D(mm)85
T(mm)17
B(mm)17
C(mm)14
r(min.)(mm)1
r1(min.)(mm)1
Basic load ratings : Cr(kN)57.6
Basic load ratings : C0r(kN)78.2
Fatigue load limit : Cu(kN)11.3
Limiting speeds(Grease lub.)(min-1)4100
Limiting speeds(Oil lub.)(min-1)5500
Load center spread : a(mm)15.6
Constant e0.33
Axial load factors : Y11.81
Axial load factors : Y01.00

Mounting dimensions,weight (reference)

da(min.)(mm)65.5 mm
db(max.)(mm)66 mm
Da(max.)(mm)79.5 mm
da(min.)(mm)77 mm
db(min.)(mm)81 mm
Sa(min.)(mm)3 mm
Sb(min.)(mm)3 mm
ra(max.)(mm)1 mm
rb(max.)(mm)1 mm
Mass(Refer.)(kg)0.306 kg
JTEKT

2026/07/19