Matched tapered roller bearings arranged back-to-back (O-arrangement, load lines diverge towards the bearing axis) accommodate high radial loads, axial loads in both directions, and tilting moments. The precision manufactured intermediate rings between the innner and outer rings enable a defined internal clearance or preload to be achieved when mounted. Matched tapered roller bearings are typically used in gearboxes, hoisting equipment, rolling mills, and machines in the mining industry.
| SKF performance class |
SKF Explorer
|
| d |
50 mm
|
Bore diameter |
|---|---|---|
| D |
80 mm
|
Outside diameter |
| T |
50 mm
|
Total width |
| d1 |
≈ 65.95 mm
|
Shoulder diameter of inner ring |
| C |
41 mm
|
Width of outer rings |
| l |
10 mm
|
Width of spacer ring |
| b |
6 mm
|
Width of lubrication groove |
| K |
4 mm
|
Diameter of lubrication hole |
| r1,2 |
min. 1 mm
|
Chamfer dimension |
| r5 |
min. 0.3 mm
|
Chamfer dimension |
| a |
45.108 mm
|
Distance between pressure points |
| db |
min. 57.5 mm
|
Diameter of shaft abutment |
|---|---|---|
| Db |
min. 77 mm
|
Diameter of shaft abutment |
| Cb |
min. 4.5 mm
|
Minimum width of space required in housing on small side face |
| ra |
max. 1 mm
|
Radius of fillet |
| rc |
max. 0.3 mm
|
Radius of fillet |
| Basic dynamic load rating | C |
129 kN
|
|---|---|---|
| Basic static load rating | C0 |
176 kN
|
| Fatigue load limit | Pu |
19.3 kN
|
| Reference speed |
5 300 r/min
|
|
| Limiting speed |
8 000 r/min
|
|
| Limiting value | e |
0.43
|
| Calculation factor | Y1 |
1.6
|
| Calculation factor | Y2 |
2.3
|
| Calculation factor | Y0 |
1.6
|
| Mass |
0.86 kg
|
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