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 |
120 mm
|
Bore diameter |
|---|---|---|
| D |
180 mm
|
Outside diameter |
| B |
28 mm
|
Width |
| d1 |
≈ 141 mm
|
Shoulder diameter of inner ring |
| D1 |
≈ 159.7 mm
|
Shoulder diameter of outer ring |
| D1 |
≈ 159 mm
|
Shoulder diameter of outer ring |
| F |
135 mm
|
Raceway diameter of inner ring |
| r1,2 |
min. 2 mm
|
Chamfer dimension |
| r1,2 |
min. 2 mm
|
Chamfer dimension |
| r3,4 |
min. 2 mm
|
Chamfer dimension |
| r3,4 |
min. 1.1 mm
|
Chamfer dimension |
| s |
max. 3.8 mm
|
Permissible axial displacement |
| da |
min. 129 mm
|
Diameter of spacer sleeve |
|---|---|---|
| da |
max. 133 mm
|
Diameter of spacer sleeve |
| db |
min. 143 mm
|
Diameter of shaft abutment |
| Da |
max. 171 mm
|
Diameter of housing abutment |
| ra |
max. 2 mm
|
Radius of fillet |
| ra |
max. 2 mm
|
Radius of fillet |
| rb |
max. 1 mm
|
Radius of fillet |
| Basic dynamic load rating | C |
153 kN
|
|---|---|---|
| Basic static load rating | C0 |
183 kN
|
| Fatigue load limit | Pu |
20.8 kN
|
| Reference speed |
4 000 r/min
|
|
| Limiting speed |
6 300 r/min
|
|
| Minimum load factor | kr |
0.15
|
| Limiting value | e |
0.2
|
| Calculation factor | Y |
0.6
|
| Mass |
2.51 kg
|
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