Single row tapered roller bearings, inch sizes, 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 |
M 249700
|
| d |
257.175 mm
|
Bore diameter |
|---|---|---|
| D |
358.775 mm
|
Outside diameter |
| T |
71.438 mm
|
Total width |
| d1 |
≈ 303.4 mm
|
Shoulder diameter of inner ring |
| B |
76.2 mm
|
Width of inner ring |
| C |
53.975 mm
|
Width of outer ring |
| r1,2 |
min. 1.5 mm
|
Chamfer dimension of inner ring |
| r3,4 |
min. 3.3 mm
|
Chamfer dimension of outer ring |
| a |
64.003 mm
|
Distance side face to pressure point |
| da |
max. 276 mm
|
Diameter of shaft abutment |
|---|---|---|
| db |
min. 270.5 mm
|
Diameter of shaft abutment |
| Da |
min. 326 mm
|
Diameter of housing abutment |
| Da |
max. 343 mm
|
Diameter of housing abutment |
| Db |
min. 343 mm
|
Diameter of housing abutment |
| Ca |
min. 11 mm
|
Minimum width of space required in housing on large side face |
| Cb |
min. 17 mm
|
Minimum width of space required in housing on small side face |
| ra |
max. 1.5 mm
|
Radius of shaft fillet |
| rb |
max. 3.3 mm
|
Radius of housing fillet |
| Basic dynamic load rating | C |
1 030 kN
|
|---|---|---|
| Basic static load rating | C0 |
1 760 kN
|
| Fatigue load limit | Pu |
156 kN
|
| Reference speed |
1 300 r/min
|
|
| Limiting speed |
1 600 r/min
|
|
| Limiting value | e |
0.33
|
| Calculation factor | Y |
1.8
|
| Calculation factor | Y0 |
1
|
| Mass |
21.6 kg
|
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