These double direction angular contact thrust ball bearings are well suited for screw drive applications, but are also beneficial in other applications, where reliable radial and axial support is required, together with extremely precise axial guidance of the shaft. The bearings provide a high degree of axial stiffness, high axial load carrying capacity, accommodate high speeds and rapid accelerations, and offer very high running accuracy.
| d |
25 mm
|
Bore diameter |
|---|---|---|
| D |
57 mm
|
Outside diameter |
| H |
28 mm
|
Height |
| d2 |
37.2 mm
|
Inner ring recess diameter |
| D2 |
48.2 mm
|
Outer ring recess diameter |
| b |
4.2 mm
|
Width of annular groove |
| K |
3 mm
|
Diameter of lubrication hole |
| r1,2 |
min. 0.3 mm
|
Chamfer radius |
| r3,4 |
min. 0.6 mm
|
Chamfer radius |
| a |
82 mm
|
Distance pressure points |
| da |
min. 32 mm
|
Abutment diameter shaft |
|---|---|---|
| Da |
max. 48 mm
|
Abutment diameter housing |
| ra |
max. 0.3 mm
|
Fillet radius |
| rb |
max. 0.6 mm
|
Fillet radius |
| Basic dynamic load rating | C |
30 kN
|
|---|---|---|
| Basic static load rating | C0 |
60 kN
|
| Fatigue load limit | Pu |
2.2 kN
|
| Attainable speed |
3 400 r/min
|
|
| Contact angle | α |
60 °
|
| Preload |
1 920 N
|
|
| Frictional moment |
0.4 N·m
|
|
| Axial stiffness for preload A (sets of two brgs back-to-back or face-to-face) |
790 N/µm
|
|
| Static moment stiffness |
205 N·m/mrad
|
| Mass bearing |
0.36 kg
|
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