These matched sets of two super-precision, high-capacity, D design, single row angular contact ball bearings with seals are available in a variety of arrangements. They are designed to accommodate heavy loads at relatively high speeds under low to moderate operating temperatures.
| Universal matching bearing(s) |
No
|
| d |
55 mm
|
Bore diameter |
|---|---|---|
| D |
80 mm
|
Outside diameter |
| B |
26 mm
|
Width |
| d1 |
62.7 mm
|
Shoulder diameter of inner ring (large side face) |
| D4 |
76.62 mm
|
Recess diameter outer ring shoulder (small side face) |
| r1,2 |
min. 1 mm
|
Chamfer dimension |
| r3,4 |
min. 0.3 mm
|
Chamfer dimension |
| da |
min. 59.6 mm
|
Diameter of shaft abutment |
|---|---|---|
| da |
max. 62.1 mm
|
Diameter of shaft abutment |
| Db |
max. 78 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 |
31 200 N
|
|---|---|---|
| Basic static load rating | C0 |
29 000 N
|
| Fatigue load limit | Pu |
1 250 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 |
23
|
| Preload class |
A
|
|
| Preload | G |
70 N
|
| Axial stiffness |
49 N/µm
|
| Correction factor dependent on bearing series and size | f |
1.15
|
|---|---|---|
| Correction factor dependent on contact angle | f1 |
1
|
| Correction factor, preload class A | f2A |
1
|
| Correction factor for hybrid bearings | fHC |
1
|
| Calculation factor for equivalent loads | f0 |
10.4
|
|---|---|---|
| Additional factors for equivalent loads |
Refer to Notes 1 and 2 below
|
| Mass |
0.37 kg
|
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