| Bearing number |
6905NR |
| Size (mm) |
25x42x9 |
| Bore Diameter (mm) |
25 |
| Outer Diameter (mm) |
42 |
| Width (mm) |
9 |
| d |
25 mm |
| D |
42 mm |
| B |
9 mm |
| C |
9 mm |
| a |
1.7 mm |
| b |
0.95 mm |
| f |
0.85 mm |
| r min. |
0.3 mm |
| r1 min. |
0.3 mm |
| D1 |
40.7 mm |
| D2 |
44.8 mm |
| Weight |
0.044 Kg |
| Basic dynamic load rating (C) |
7 kN |
| Basic static load rating (C0) |
4,5 kN |
| (Grease) Lubrication Speed |
16000 r/min |
| Bore Type |
Cylindrical Bore |
| Configuration |
Single Row |
| Enclosure |
Snap Ring Groove with Snap Ring |
| Bore Size |
25 mm |
| Outside Diameter |
42 mm |
| Width |
9 mm |
| Fillet Radius/Chamfer |
0.3 mm |
| r1 |
0.3 mm |
| Snap Ring Width |
0.9 mm |
| Snap Ring Outside Diameter |
44.8 mm |
| D1 (max) |
40.7 mm |
| a (max) |
1.7 mm |
| b (min) |
1 mm |
| Dynamic Load Rating |
7,000 N |
| Static Load Rating |
4,500 N |
| Limiting Speed - Grease |
16,000 rpm |
| Limiting Speed - Oil |
20,000 rpm |
| Factor fo |
15.3 |
| Radial Clearance |
0.005 to 0.020 mm |
| da (min) |
27 mm |
| Da (max) |
40 mm |
| Dx (min) |
45.5 mm |
| ra (max) |
0.3 mm |
| Cy (max) |
2.3 mm |