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) |
Yes, back-to-back (<>), face-to-face (><) or tandem (>>)
|
| d |
65 mm
|
Bore diameter |
|---|---|---|
| D |
90 mm
|
Outside diameter |
| B |
26 mm
|
Width |
| d1 |
72.75 mm
|
Shoulder diameter of inner ring (large side face) |
| d2 |
70.7 mm
|
Shoulder diameter of inner ring (small side face) |
| D1 |
82.32 mm
|
Shoulder diameter of outer ring (large side face) |
| b |
2.2 mm
|
Width of lubrication groove |
| C1 |
6.5 mm
|
Distance from outer ring side face to lubrication groove / lubrication hole |
| C2 |
2.5 mm
|
Distance from outer ring side face to O-ring groove |
| C3 |
2 mm
|
Distance from outer ring side face to O-ring groove |
| r1,2 |
min. 1 mm
|
Chamfer dimension |
| r3,4 |
min. 0.3 mm
|
Chamfer dimension |
| da |
min. 69.6 mm
|
Diameter of shaft abutment |
|---|---|---|
| db |
min. 67 mm
|
Diameter of shaft abutment |
| Da |
max. 85.4 mm
|
Diameter of housing abutment |
| Db |
max. 88 mm
|
Diameter of housing abutment |
| ra |
max. 1 mm
|
Radius of fillet |
| rb |
max. 0.3 mm
|
Radius of fillet |
| Basic dynamic load rating | C |
27 000 N
|
|---|---|---|
| Basic static load rating | C0 |
24 500 N
|
| Fatigue load limit | Pu |
765 N
|
| Attainable speeds |
Contact SKF for the attainable speeds
|
|
| Contact angle | α |
15 °
|
| Ball diameter | Dw |
7.938 mm
|
| Number of rows | i |
2
|
| Number of balls (per bearing) | z |
24
|
| Reference grease quantity (per bearing) | Gref |
2.6 cm³
|
| Preload class |
A
|
|
| Preload | G |
89 N
|
| Axial stiffness |
53 N/µm
|
| Correction factor dependent on bearing series and size | f |
1.19
|
|---|---|---|
| Correction factor dependent on contact angle | f1 |
1
|
| Correction factor, preload class A | f2A |
1
|
| Correction factor for hybrid bearings | fHC |
1.01
|
| Calculation factor for equivalent loads | f0 |
8.5
|
|---|---|---|
| Additional factors for equivalent loads |
Refer to Notes 1 and 2 below
|
| Mass |
0.34 kg
|
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