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


Bearing No. 7056BDB FY

Specification data (main dimensions, etc.)

d(mm)280
D(mm)420
B(mm)130
r(min.)(mm)4
r1(min.)(mm)1.5
Basic load ratings : Cr(kN)623
Basic load ratings : C0r(kN)906
Fatigue load limit : Cu(kN)26.2
factor : f0-
Limiting speeds(Grease lub.)(min-1)850
Limiting speeds(Oil lub.)(min-1)1100
Load center spread : a(mm)358.7

Mounting dimensions,weight (reference)

da(min.)(mm)298 mm
Db(max.)(mm)411.5 mm
ra(max.)(mm)3 mm
rb(max.)(mm)1.5 mm
Mass(Refer.)(kg)62.0 kg
JTEKT

2026/08/11