These matched sets of two super-precision, high-speed, E design, single row angular contact ball bearings are available in a variety of arrangements. Compared to the equivalent SKF B design high-speed bearings, these have a slightly higher speed capability and can accommodate heavier loads.
| Universal matching bearing(s) |
No
|
| d |
25 mm
|
Bore diameter |
|---|---|---|
| D |
47 mm
|
Outside diameter |
| B |
24 mm
|
Width |
| d1 |
31.6 mm
|
Shoulder diameter of inner ring (large side face) |
| d2 |
29.8 mm
|
Shoulder diameter of inner ring (small side face) |
| D1 |
39.21 mm
|
Shoulder diameter of outer ring (large side face) |
| b |
1.4 mm
|
Width of lubrication groove |
| C1 |
3.2 mm
|
Distance from outer ring side face to lubrication groove / lubrication hole |
| C2 |
1.45 mm
|
Distance from outer ring side face to O-ring groove |
| C3 |
1.9 mm
|
Distance from outer ring side face to O-ring groove |
| r1,2 |
min. 0.6 mm
|
Chamfer dimension |
| r3,4 |
min. 0.3 mm
|
Chamfer dimension |
| da |
min. 28.2 mm
|
Diameter of shaft abutment |
|---|---|---|
| db |
min. 28.2 mm
|
Diameter of shaft abutment |
| Da |
max. 43.8 mm
|
Diameter of housing abutment |
| Db |
max. 44.6 mm
|
Diameter of housing abutment |
| ra |
max. 0.6 mm
|
Radius of fillet |
| rb |
max. 0.3 mm
|
Radius of fillet |
| Basic dynamic load rating | C |
12 700 N
|
|---|---|---|
| Basic static load rating | C0 |
7 800 N
|
| Fatigue load limit | Pu |
245 N
|
| Attainable speeds |
Contact SKF for the attainable speeds
|
|
| Contact angle | α |
25 °
|
| Ball diameter | Dw |
6.35 mm
|
| Number of rows | i |
2
|
| Number of balls (per bearing) | z |
14
|
| Reference grease quantity (per bearing) | Gref |
1.3 cm³
|
| Correction factor dependent on bearing series and size | f |
1.05
|
|---|---|---|
| Correction factor dependent on contact angle | f1 |
0.99
|
| Correction factor for hybrid bearings | fHC |
1.01
|
| Calculation factor | e |
0.68
|
|---|---|---|
| Axial load factor (single, tandem) | Y1 |
0
|
| Axial load factor (single, tandem) | Y2 |
0.87
|
| Axial load factor (single, tandem) | Y0 |
0.38
|
| Radial load factor (single, tandem) | X1 |
1
|
| Radial load factor (single, tandem) | X2 |
0.41
|
| Radial load factor (single, tandem) | X0 |
0.5
|
| Mass |
0.13 kg
|
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