Matched tapered roller bearings arranged face-to-face (X-arrangement, load lines diverge towards the bearing axis) accommodate high radial loads and axial loads in both directions. The precision manufactured intermediate ring between the outer rings enables 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 |
180 mm
|
Bore diameter |
|---|---|---|
| D |
250 mm
|
Outside diameter |
| T |
90 mm
|
Total width |
| 2B |
90 mm
|
Width of inner rings |
| b |
10 mm
|
Width of lubrication groove |
| K |
7.5 mm
|
Diameter of lubrication hole |
| r3,4 |
min. 2 mm
|
Chamfer dimension |
| r5 |
min. 0.6 mm
|
Chamfer dimension |
| da |
max. 194 mm
|
Diameter of shaft abutment |
|---|---|---|
| Da |
min. 225 mm
|
Diameter of housing abutment |
| Da |
max. 238 mm
|
Diameter of housing abutment |
| Ca |
min. 8 mm
|
Minimum width of space required in housing on large side face |
| ra |
max. 2.5 mm
|
Radius of fillet |
| rc |
max. 0.6 mm
|
Radius of fillet |
| Basic dynamic load rating | C |
746 kN
|
|---|---|---|
| Basic static load rating | C0 |
1 460 kN
|
| Fatigue load limit | Pu |
137 kN
|
| Reference speed |
1 500 r/min
|
|
| Limiting speed |
2 200 r/min
|
|
| Limiting value | e |
0.48
|
| Calculation factor | Y1 |
1.4
|
| Calculation factor | Y2 |
2.1
|
| Calculation factor | Y0 |
1.4
|
| Mass |
13.8 kg
|
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