Single row cylindrical roller bearings are designed to accommodate high radial loads in combination with high speeds. Having two integral flanges on the outer ring and one on the inner ring, NJ design bearings can accommodate axial displacement in one direction. An important feature is the separable design, which facilitates mounting and enables the bearing components to be interchanged.
| SKF performance class |
SKF Explorer
|
| d |
220 mm
|
Bore diameter |
|---|---|---|
| D |
340 mm
|
Outside diameter |
| B |
56 mm
|
Width |
| d1 |
≈ 262 mm
|
Shoulder diameter of inner ring |
| D1 |
≈ 296.2 mm
|
Shoulder diameter of outer ring |
| F |
250 mm
|
Raceway diameter of inner ring |
| r1,2 |
min. 3 mm
|
Chamfer dimension |
| r3,4 |
min. 3 mm
|
Chamfer dimension |
| s |
max. 7.5 mm
|
Permissible axial displacement |
| da |
min. 233 mm
|
Diameter of spacer sleeve |
|---|---|---|
| da |
max. 246 mm
|
Diameter of spacer sleeve |
| db |
min. 266 mm
|
Diameter of shaft abutment |
| Da |
max. 328 mm
|
Diameter of housing abutment |
| ra |
max. 2.5 mm
|
Radius of fillet |
| Basic dynamic load rating | C |
570 kN
|
|---|---|---|
| Basic static load rating | C0 |
735 kN
|
| Fatigue load limit | Pu |
73.5 kN
|
| Reference speed |
2 200 r/min
|
|
| Limiting speed |
3 200 r/min
|
|
| Minimum load factor | kr |
0.15
|
| Limiting value | e |
0.2
|
| Calculation factor | Y |
0.6
|
| Mass |
18.8 kg
|
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