| Bearing number |
6903N |
| Size (mm) |
17x30x7 |
| Bore Diameter (mm) |
17 |
| Outer Diameter (mm) |
30 |
| Width (mm) |
7 |
| d |
17 mm |
| D |
30 mm |
| B |
7 mm |
| C |
7 mm |
| a |
1.3 mm |
| b |
0.95 mm |
| r min. |
0.3 mm |
| r1 min. |
0.3 mm |
| D1 |
28.7 mm |
| Weight |
0.019 Kg |
| Basic dynamic load rating (C) |
4,6 kN |
| Basic static load rating (C0) |
2,55 kN |
| (Grease) Lubrication Speed |
24000 r/min |
| Bore Type |
Cylindrical Bore |
| Enclosure |
Open |
| Configuration |
Single Row |
| Bore Size |
17 mm |
| Outside Diameter |
30 mm |
| Width |
7 mm |
| Fillet Radius/Chamfer |
0.3 mm |
| r1 |
0.3 mm |
| Groove Width |
1 mm |
| Groove Diameter |
28.7 mm |
| a (max) |
1.3 mm |
| Dynamic Load Rating |
4,600 N |
| Static Load Rating |
2,550 N |
| Limiting Speed - Grease |
24,000 rpm |
| Limiting Speed - Oil |
29,000 rpm |
| Factor fo |
14.7 |
| Radial Clearance |
0.003 to 0.018 mm |
| da (min) |
19 mm |
| Da (max) |
28 mm |
| Dx (min) |
33.5 mm |
| ra (max) |
0.3 mm |
| Cy (max) |
1.8 mm |