Koyo
FOR REFERENCE ONLY
  • Angular contact ball bearings
  • Matched pair
  • Back-to-back
  • With pressed cage


Bearing No. 7405BDB

Specification data (main dimensions, etc.)

d(mm)25
D(mm)80
B(mm)42
r(min.)(mm)1.5
r1(min.)(mm)1
Basic load ratings : Cr(kN)80.4
Basic load ratings : C0r(kN)47.8
Fatigue load limit : Cu(kN)3.40
factor : f0-
Limiting speeds(Grease lub.)(min-1)4400
Limiting speeds(Oil lub.)(min-1)6500
Load center spread : a(mm)67.2

Mounting dimensions,weight (reference)

da(min.)(mm)33.5 mm
Db(max.)(mm)74.5 mm
ra(max.)(mm)1.5 mm
rb(max.)(mm)1 mm
Mass(Refer.)(kg)1.05 kg
JTEKT

2026/07/18