These bearings consist of a radial needle roller bearing combined with a thrust ball bearing. Together they can accommodate both radial loads and axial loads in one direction. In addition, they can operate at relatively high speeds. Their low cross-sectional height makes the bearings particularly suitable for applications where other types of locating bearing arrangements occupy too much space. The thrust part is capped with a cover that forms a gap-type seal to retain the grease in the bearings.
| Fw |
12 mm
|
Diameter under rollers |
|---|---|---|
| D |
21 mm
|
Outside diameter |
| C |
23 mm
|
Width |
| C1 |
9 mm
|
Width of thrust part |
| C1 |
6.5 mm
|
Distance side face to lubrication hole |
| d |
12 mm
|
Bore diameter of thrust part |
| D2 |
27.2 mm
|
Diameter of stamped steel cover |
| r1,2 |
min. 0.3 mm
|
Chamfer dimension |
| da |
min. 21.7 mm
|
Diameter of shaft abutment |
|---|---|---|
| ra |
max. 0.3 mm
|
Radius of fillet |
| rb |
max. 0.3 mm
|
Radius of fillet |
| di |
9 mm
|
Bore diameter of associated inner ring |
| F |
12 mm
|
Diameter of inner ring raceway |
| Bi |
16 mm
|
Width of associated inner ring |
| Basic dynamic load rating, radial | C |
9.13 kN
|
|---|---|---|
| Basic static load rating, radial | C0 |
12 kN
|
| Basic dynamic load rating, axial | C |
10.4 kN
|
| Basic static load rating, axial | C0 |
16.6 kN
|
| Fatigue load limit, radial | Pu |
1.43 kN
|
| Fatigue load limit, axial | Pu |
0.62 kN
|
| Minimum axial load factor | A |
0.0014
|
| Reference speed |
9 000 r/min
|
|
| Limiting speed |
7 500 r/min
|
| Mass |
0.04 kg
|
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