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


Bearing No. 7052DB FY

Specification data (main dimensions, etc.)

d(mm)260
D(mm)400
B(mm)130
r(min.)(mm)4
r1(min.)(mm)1.5
Basic load ratings : Cr(kN)661
Basic load ratings : C0r(kN)956
Fatigue load limit : Cu(kN)27.1
factor : f0-
Limiting speeds(Grease lub.)(min-1)1200
Limiting speeds(Oil lub.)(min-1)1500
Load center spread : a(mm)256.7

Mounting dimensions,weight (reference)

da(min.)(mm)278 mm
Db(max.)(mm)391.5 mm
ra(max.)(mm)3 mm
rb(max.)(mm)1.5 mm
Mass(Refer.)(kg)57.4 kg
JTEKT

2026/07/06