BearingBrain
Parts Intelligence
Part page

NTN 6903/C3

Deep groove ball · Open
Ø17Ø307
Bore
17 mm
Outside dia
30 mm
Width
7 mm
Dynamic C
3.1 kN
Static C0
1.8 kN
Speed grease
22,000 rpm
Speed oil
28,000 rpm
Clearance
C3
Precision
ABEC-1 (P0)
Weight
0.026 kg
Interactive view — 3D model + CAD files → Substitution sheet — printable →
Evidence

catalog-search · eligible · eval ship · deterministic executor · partsbrain pull 2026-09-08

Interchange family — 8 records

Part numberManufacturerBore×OD×WidthC
6903/C3FAG (Schaeffler)17×30×73.1 kN
6903/C3Timken17×30×73.1 kN
6903/C3RBC Bearings17×30×73.1 kN
6903/C3Peer Bearing17×30×73.1 kN
6903/C3KOYO (JTEKT)17×30×73.1 kN
6903/C3INA (Schaeffler)17×30×73.1 kN
6903/C3MinebeaMitsumi (NMB)17×30×73.1 kN
6903/C3Nachi Fujikoshi17×30×73.1 kN