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


Bearing No. 7938CDB FY

Specification data (main dimensions, etc.)

d(mm)190
D(mm)260
B(mm)66
r(min.)(mm)2
r1(min.)(mm)1
Basic load ratings : Cr(kN)322
Basic load ratings : C0r(kN)394
Fatigue load limit : Cu(kN)13.7
factor : f016.5
Limiting speeds(Grease lub.)(min-1)2700
Limiting speeds(Oil lub.)(min-1)3600
Load center spread : a(mm)93.3

Mounting dimensions,weight (reference)

da(min.)(mm)200 mm
Db(max.)(mm)254.5 mm
ra(max.)(mm)2 mm
rb(max.)(mm)1 mm
Mass(Refer.)(kg)9.66 kg
JTEKT

2026/07/28