Single row tapered roller bearings are designed to accommodate combined radial and axial loads and provide low friction during operation. The inner ring, with rollers and cage, can be mounted separately from the outer ring. These separable and interchangeable components facilitate mounting, dismounting and maintenance. By mounting one single row tapered roller bearing against another and applying a preload, a rigid bearing application can be achieved.
| SKF performance class |
SKF Explorer
|
| Dimension series |
7GB
|
| d |
80 mm
|
Bore diameter |
|---|---|---|
| D |
170 mm
|
Outside diameter |
| T |
42.5 mm
|
Total width |
| d1 |
≈ 125.38 mm
|
Shoulder diameter of inner ring |
| B |
39 mm
|
Width of inner ring |
| C |
27 mm
|
Width of outer ring |
| r1,2 |
min. 3 mm
|
Chamfer dimension of inner ring |
| r3,4 |
min. 2.5 mm
|
Chamfer dimension of outer ring |
| a |
51.517 mm
|
Distance side face to pressure point |
| da |
max. 97 mm
|
Diameter of shaft abutment |
|---|---|---|
| db |
min. 93.5 mm
|
Diameter of shaft abutment |
| Da |
min. 134 mm
|
Diameter of housing abutment |
| Da |
max. 159 mm
|
Diameter of housing abutment |
| Db |
min. 159 mm
|
Diameter of housing abutment |
| Ca |
min. 5 mm
|
Minimum width of space required in housing on large side face |
| Cb |
min. 15.5 mm
|
Minimum width of space required in housing on small side face |
| ra |
max. 3 mm
|
Radius of shaft fillet |
| rb |
max. 2.5 mm
|
Radius of housing fillet |
| Basic dynamic load rating | C |
276 kN
|
|---|---|---|
| Basic static load rating | C0 |
265 kN
|
| Fatigue load limit | Pu |
30.5 kN
|
| Reference speed |
3 000 r/min
|
|
| Limiting speed |
4 000 r/min
|
|
| Limiting value | e |
0.83
|
| Calculation factor | Y |
0.72
|
| Calculation factor | Y0 |
0.4
|
| Mass |
4.05 kg
|
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