Bearing
Brain
Parts Intelligence
Part page
NTN 6903C3
Deep groove ball · Open
Ø17
Ø30
7
Bore
17 mm
Outside dia
30 mm
Width
7 mm
Dynamic C
3.0 kN
Static C0
1.7 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 — 5 records
Part number
Manufacturer
Bore×OD×Width
C
6903/C3
SKF
17×30×7
3.1 kN
6903C3
KOYO (JTEKT)
17×30×7
3.0 kN
6903C3
NSK
17×30×7
3.1 kN
6903.C3
FAG (Schaeffler)
17×30×7
3.2 kN
6903C3
Timken
17×30×7
3.1 kN