These matched sets of two super-precision, high-speed B design, single row angular contact ball bearings with seals are available in a variety of arrangements. Compared to the equivalent SKF E design high-speed bearings, these are suited for lighter loads.
| Universal matching bearing(s) |
Yes, back-to-back (<>), face-to-face (><) or tandem (>>)
|
| d |
17 mm
|
Bore diameter |
|---|---|---|
| D |
30 mm
|
Outside diameter |
| B |
14 mm
|
Width |
| d1 |
21.5 mm
|
Shoulder diameter of inner ring (large side face) |
| d2 |
20.9 mm
|
Shoulder diameter of inner ring (small side face) |
| D2 |
26.7 mm
|
Recess diameter of outer ring (large side face) |
| D4 |
27.5 mm
|
Recess diameter outer ring shoulder (small side face) |
| r1,2 |
min. 0.3 mm
|
Chamfer dimension |
| r3,4 |
min. 0.15 mm
|
Chamfer dimension |
| da |
min. 19 mm
|
Diameter of shaft abutment |
|---|---|---|
| da |
max. 21.1 mm
|
Diameter of shaft abutment |
| db |
min. 19 mm
|
Diameter of shaft abutment |
| db |
max. 20.5 mm
|
Diameter of shaft abutment |
| Da |
max. 28 mm
|
Diameter of housing abutment |
| Db |
max. 29.2 mm
|
Diameter of housing abutment |
| ra |
max. 0.3 mm
|
Radius of fillet |
| rb |
max. 0.15 mm
|
Radius of fillet |
| Basic dynamic load rating | C |
4 420 N
|
|---|---|---|
| Basic static load rating | C0 |
2 850 N
|
| Fatigue load limit | Pu |
88 N
|
| Attainable speeds |
Contact SKF for the attainable speeds
|
|
| Contact angle | α |
25 °
|
| Ball diameter | Dw |
3.175 mm
|
| Number of rows | i |
2
|
| Number of balls (per bearing) | z |
17
|
| Preload class |
A
|
|
| Preload | G |
15 N
|
| Correction factor dependent on contact angle | f1 |
0.99
|
|---|---|---|
| Correction factor, preload class A | f2A |
1
|
| 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
|
| Axial load factor (back-to-back, face-to-face) | Y1 |
0.92
|
| Axial load factor (back-to-back, face-to-face) | Y2 |
1.41
|
| Axial load factor (back-to-back, face-to-face) | Y0 |
0.76
|
| Radial load factor (back-to-back, face-to-face) | X1 |
1
|
| Radial load factor (back-to-back, face-to-face) | X2 |
0.67
|
| Radial load factor (back-to-back, face-to-face) | X0 |
1
|
| Mass |
0.03 kg
|
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