Koyo
FOR REFERENCE ONLY
  • Deep groove ball bearings
  • Single-row
  • Shielded/sealed type
  • Extremely light contact sealed


Bearing No. 6903 2RD

Specification data (main dimensions, etc.)

d(mm)17
D(mm)30
B(mm)7
r(min.)(mm)0.3
Basic load ratings : Cr(kN)5.75
Basic load ratings : C0r(kN)2.55
Fatigue load limit : Cu(kN)0.130
factor : f014.7
Limiting speeds(Grease lub.)(min-1)21000

Mounting dimensions,weight (reference)

da(min.)(mm)19 mm
da(max.)(mm)19.5 mm
Da(max.)(mm)28 mm
ra(max.)(mm)0.3 mm
Mass(Refer.)(kg)0.018 kg
JTEKT

2026/06/24