Four-point contact ball bearings with locating slots can accommodate high axial loads in both directions and small radial loads. They can operate at very high speeds and are more suitable than deep groove ball bearings for supporting large axial forces. The outer ring, with ball and cage assembly, can be mounted separately from the two inner ring halves. The locating slots can be used to prevent the outer ring from rotating.
| SKF performance class |
SKF Explorer
|
| d |
170 mm
|
Bore diameter |
|---|---|---|
| D |
360 mm
|
Outside diameter |
| B |
72 mm
|
Width |
| d1 |
≈ 237 mm
|
Shoulder diameter inner ring |
| D1 |
≈ 293 mm
|
Shoulder diameter outer ring/ inner diameter housing washer |
| a |
186 mm
|
Distance pressure point(s) |
| h |
12.7 mm
|
Locating slot depth outer ring |
| b |
10.5 mm
|
Locating slot width outer ring |
| r0 |
2 mm
|
Corner radius locating slot |
| r1,2 |
min. 4 mm
|
Chamfer dimension inner ring |
| da |
min. 187 mm
|
Abutment diameter shaft |
|---|---|---|
| Da |
max. 343 mm
|
Abutment diameter housing |
| ra |
max. 3 mm
|
Fillet radius |
| Basic dynamic load rating | C |
655 kN
|
|---|---|---|
| Basic static load rating | C0 |
1 040 kN
|
| Fatigue load limit | Pu |
27 kN
|
| Limiting speed |
3 200 r/min
|
|
| Calculation factor | A |
2.92
|
| Limiting value | e |
0.95
|
| Calculation factor | X |
0.6
|
| Calculation factor | Y0 |
0.58
|
| Calculation factor | Y1 |
0.66
|
| Calculation factor | Y2 |
1.07
|
| Mass bearing |
41.5 kg
|
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