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


Bearing No. 02877/20

Specification data (main dimensions, etc.)

d(mm)34.925
D(mm)73.025
T(mm)22.225
B(mm)22.225
C(mm)17.462
r(min.)(mm)3.6
r1(min.)(mm)3.2
Basic load ratings : Cr(kN)68.8
Basic load ratings : C0r(kN)65.7
Fatigue load limit : Cu(kN)9.55
Limiting speeds(Grease lub.)(min-1)5500
Limiting speeds(Oil lub.)(min-1)7400
Load center spread : a(mm)18.4
Constant :e0.45
Axial load factors : Y11.32
Axial load factors : Y00.73

Mounting dimensions,weight (reference)

da(mm)48.5 mm
db(mm)42.0 mm
Da(mm)62.0 mm
Db(mm)68.0 mm
ra(max.)(mm)3.6 mm
rb(max.)(mm)3.2 mm
Mass(Refer.)(kg)0.42 kg
JTEKT

2026/07/05