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 |
120 mm
|
Bore diameter |
|---|---|---|
| D |
180 mm
|
Outside diameter |
| B |
56 mm
|
Width |
| d1 |
138.5 mm
|
Shoulder diameter of inner ring (large side face) |
| d2 |
138.5 mm
|
Shoulder diameter of inner ring (small side face) |
| D1 |
161.5 mm
|
Shoulder diameter of outer ring (large side face) |
| b |
2.8 mm
|
Width of lubrication groove |
| C1 |
15 mm
|
Distance from outer ring side face to lubrication groove / lubrication hole |
| C2 |
6.2 mm
|
Distance from outer ring side face to O-ring groove |
| C3 |
5.4 mm
|
Distance from outer ring side face to O-ring groove |
| r1,2 |
min. 2 mm
|
Chamfer dimension |
| r3,4 |
min. 1 mm
|
Chamfer dimension |
| da |
min. 129 mm
|
Diameter of shaft abutment |
|---|---|---|
| db |
min. 129 mm
|
Diameter of shaft abutment |
| Da |
max. 171 mm
|
Diameter of housing abutment |
| Db |
max. 175 mm
|
Diameter of housing abutment |
| ra |
max. 2 mm
|
Radius of fillet |
| rb |
max. 1 mm
|
Radius of fillet |
| Basic dynamic load rating | C |
178 000 N
|
|---|---|---|
| Basic static load rating | C0 |
232 000 N
|
| Fatigue load limit | Pu |
8 000 N
|
| Attainable speeds |
Contact SKF for the attainable speeds
|
|
| Contact angle | α |
25 °
|
| Ball diameter | Dw |
19.05 mm
|
| Number of rows | i |
2
|
| Number of balls (per bearing) | z |
22
|
| Reference grease quantity (per bearing) | Gref |
27 cm³
|
| Correction factor dependent on bearing series and size | f |
1.17
|
|---|---|---|
| Correction factor dependent on contact angle | f1 |
0.99
|
| Correction factor for hybrid bearings | fHC |
1
|
| 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 |
4.26 kg
|
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