These matched sets of two super-precision, high-capacity, D design, single row angular contact ball bearings are available in a variety of arrangements. They are designed for high-load capacity and relatively high speed operation and, compared to the equivalent SKF B and E design high-speed bearings, are best suited for heavier loads.
| Universal matching bearing(s) |
No
|
| d |
65 mm
|
Bore diameter |
|---|---|---|
| D |
85 mm
|
Outside diameter |
| B |
20 mm
|
Width |
| d1 |
71.7 mm
|
Shoulder diameter of inner ring (large side face) |
| r1,2 |
min. 0.6 mm
|
Chamfer dimension |
| r3,4 |
min. 0.3 mm
|
Chamfer dimension |
| da |
min. 68.2 mm
|
Diameter of shaft abutment |
|---|---|---|
| Db |
max. 83 mm
|
Diameter of housing abutment |
| ra |
max. 0.6 mm
|
Radius of fillet |
| rb |
max. 0.3 mm
|
Radius of fillet |
| dn |
72.4 mm
|
Position of oil nozzle |
| Basic dynamic load rating | C |
22 100 N
|
|---|---|---|
| Basic static load rating | C0 |
30 000 N
|
| Fatigue load limit | Pu |
1 250 N
|
| Attainable speeds |
Contact SKF for the attainable speeds
|
|
| Contact angle | α |
15 °
|
| Ball diameter | Dw |
5.556 mm
|
| Number of rows | i |
2
|
| Number of balls (per bearing) | z |
29
|
| Reference grease quantity (per bearing) | Gref |
1.3 cm³
|
| Preload class |
B
|
|
| Preload | G |
215 N
|
| Axial stiffness |
105 N/µm
|
| Correction factor dependent on bearing series and size | f |
1.28
|
|---|---|---|
| Correction factor dependent on contact angle | f1 |
1
|
| Correction factor, preload class B | f2B |
1.09
|
| Correction factor for hybrid bearings | fHC |
1
|
| Calculation factor for equivalent loads | f0 |
17.1
|
|---|---|---|
| Additional factors for equivalent loads |
Refer to Notes 1 and 2 below
|
| Mass |
0.25 kg
|
Datasheet
EN PDF
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