These sets of four matched super-precision angular contact ball bearings are available as universally matchable bearings or in preconfigured arrangements. Sets of four bearings arranged in tandem need to be mounted against a single bearing, or a set of bearings in tandem, to achieve the desired preload. All the other arrangements are available in different preload classes and correct mounting results in preload within a predetermined range, without the need for shims or similar devices. The bore and outside diameters of the bearings are matched to within a maximum of one-third of the permitted diameter tolerance, to provide better load distribution than single universally matchable bearings.
|
No
|
Universal matching bearing(s) |
| Bore diameter | d |
40 mm
|
|---|---|---|
| Outside diameter | D |
68 mm
|
| Width | B |
60 mm
|
| Shoulder diameter of inner ring (large side face) | d1 |
49.2 mm
|
| Chamfer dimension | r1,2 |
min. 1 mm
|
| Chamfer dimension | r3,4 |
min. 0.3 mm
|
| da |
min. 44.6 mm
|
Diameter of shaft abutment |
|---|---|---|
| Db |
max. 66 mm
|
Diameter of housing abutment |
| ra |
max. 1 mm
|
Radius of fillet |
| rb |
max. 0.3 mm
|
Radius of fillet |
| dn |
50.8 mm
|
Position of oil nozzle |
| Basic dynamic load rating | C |
42 300 N
|
|---|---|---|
| Basic static load rating | C0 |
41 500 N
|
| Fatigue load limit | Pu |
1 760 N
|
| Attainable speeds |
Contact SKF for the attainable speeds
|
|
| Contact angle | α |
25 °
|
| Ball diameter | Dw |
7.938 mm
|
| Number of rows | i |
4
|
| Number of balls (per bearing) | z |
18
|
| Reference grease quantity (per bearing) | Gref |
2.4 cm³
|
| Preload class |
C
|
|
| Preload | G |
800 N
|
| Axial stiffness |
324 N/µm
|
| Correction factor dependent on bearing series and size | f |
1.06
|
|---|---|---|
| Correction factor dependent on contact angle | f1 |
0.99
|
| Correction factor, preload class C | f2C |
1.05
|
| Correction factor for hybrid bearings | fHC |
1
|
| Mass |
0.77 kg
|
Datasheet
EN PDF
Reviews
There are no reviews yet.