Koyo
FOR REFERENCE ONLY
  • Deep groove ball bearings
  • Single-row


Bearing No. 6910NR

Specification data (main dimensions, etc.)

d(mm)50
D(mm)72
B(mm)12
r(min.)(mm)0.6
r1(min.)(mm)0.6
Basic load ratings : Cr(kN)18.2
Basic load ratings : C0r(kN)11.7
Fatigue load limit : Cu(kN)0.640
factor : f016.1
Limiting speeds(Grease lub.)(min-1)9000
Limiting speeds(Oil lub.)(min-1)11000
Dimensions of locating snap ring : D2(min.)(mm)74.8
Dimensions of locating snap ring : f(±0.05)(mm)0.8

Mounting dimensions,weight (reference)

da(min.)(mm)54 mm
Da(max.)(mm)68 mm
Dx(min.)(mm)76 mm
Cy(max.)(mm)2.3 mm
ra(max.)(mm)0.6 mm
rb(max.)(mm)0.6 mm
Mass(Refer.)(kg)0.133 kg
JTEKT

2026/07/02