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


Bearing No. 1380/29

Specification data (main dimensions, etc.)

d(mm)22.225
D(mm)53.975
T(mm)19.368
B(mm)20.168
C(mm)14.288
r(min.)(mm)1.6
r1(min.)(mm)1.6
Basic load ratings : Cr(kN)45.9
Basic load ratings : C0r(kN)37.9
Fatigue load limit : Cu(kN)5.45
Limiting speeds(Grease lub.)(min-1)8000
Limiting speeds(Oil lub.)(min-1)11000
Load center spread : a(mm)11.6
Constant :e0.29
Axial load factors : Y12.05
Axial load factors : Y01.13

Mounting dimensions,weight (reference)

da(mm)29.5 mm
db(mm)29.5 mm
Da(mm)46.0 mm
Db(mm)49.0 mm
ra(max.)(mm)1.6 mm
rb(max.)(mm)1.6 mm
Mass(Refer.)(kg)0.219 kg
JTEKT

2026/07/30