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 no flanges on the inner ring, NU design bearings can accommodate axial displacement in both directions. An annular groove in the outer ring enables the bearings to retain a snap ring. An important feature is the separable design, which facilitates mounting and enables the bearing components to be interchanged.
| SKF performance class |
SKF Explorer
|
| d |
120 mm
|
Bore diameter |
|---|---|---|
| D |
215 mm
|
Outside diameter |
| B |
58 mm
|
Width |
| D1 |
≈ 187.75 mm
|
Shoulder diameter of outer ring |
| D3 |
208.6 mm
|
Diameter of snap ring groove |
| F |
143.5 mm
|
Raceway diameter of inner ring |
| C2 |
5.69 mm
|
Distance from outer ring side face to snap ring groove |
| b |
3.5 mm
|
Width of snap ring groove |
| r1,2 |
min. 2.1 mm
|
Chamfer dimension |
| r3,4 |
min. 2.1 mm
|
Chamfer dimension |
| s |
max. 3.8 mm
|
Permissible axial displacement |
| da |
min. 132 mm
|
Diameter of spacer sleeve |
|---|---|---|
| da |
max. 140 mm
|
Diameter of spacer sleeve |
| db |
min. 146 mm
|
Diameter of shaft abutment |
| Da |
max. 201.6 mm
|
Diameter of housing abutment |
| ra |
max. 2 mm
|
Radius of fillet |
| rb |
max. 2 mm
|
Radius of fillet |
| Basic dynamic load rating | C |
520 kN
|
|---|---|---|
| Basic static load rating | C0 |
630 kN
|
| Fatigue load limit | Pu |
72 kN
|
| Reference speed |
3 400 r/min
|
|
| Limiting speed |
5 600 r/min
|
|
| Minimum load factor | kr |
0.3
|
| Limiting value | e |
0.3
|
| Calculation factor | Y |
0.4
|
| Mass |
9.11 kg
|
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