Spherical roller bearings can accommodate heavy loads in both directions. They are self-aligning and accommodate misalignment and shaft deflections, with virtually no increase in friction or temperature. The design includes features to facilitate relubrication. The bearings can be used in a modular system, including housings, sleeves and nuts.
| Bore type |
Cylindrical
|
| d |
75 mm
|
Bore diameter |
|---|---|---|
| tΔdmp | -0.015 – 0 mm | Deviation limits of mid-range bore diameter |
| D |
160 mm
|
Outside diameter |
| tΔDmp | -0.025 – 0 mm | Deviation limits of mid-range outside diameter |
| B |
55 mm
|
Width |
| tΔBs | -0.06 – 0 mm | Deviation limits of ring width |
| d2 |
≈ 92.8 mm
|
Shoulder diameter of inner ring |
| D1 |
≈ 135 mm
|
Shoulder/recess diameter of outer ring |
| b |
8.3 mm
|
Width of lubrication groove |
| K |
4.5 mm
|
Diameter of lubrication hole |
| r1,2 |
min. 2.1 mm
|
Chamfer dimension |
|
Normal
|
ISO tolerance class for dimensions |
| da |
min. 87 mm
|
Diameter of shaft abutment |
|---|---|---|
| Da |
max. 148 mm
|
Diameter of housing abutment |
| ra |
max. 2 mm
|
Radius of fillet |
| SKF performance class |
SKF Explorer
|
|
| Basic dynamic load rating | C |
462 kN
|
| Basic static load rating | C0 |
475 kN
|
| Fatigue load limit | Pu |
48 kN
|
| Reference speed |
3 200 r/min
|
|
| Limiting speed |
4 300 r/min
|
|
| Limiting value | e |
0.35
|
| Calculation factor | Y1 |
1.9
|
| Calculation factor | Y2 |
2.9
|
| Calculation factor | Y0 |
1.8
|
| Range of section height at inner ring of assembled bearing | tKia |
5 µm
|
|---|---|---|
| Maximum run-out of inner ring side face to the bore | tSd |
8 µm
|
| Range of section height at outer ring of assembled bearing | tKea |
13 µm
|
| Perpendicularity of outer ring outside surface | tSD |
5 µm
|
| ISO tolerance class for geometrical tolerances |
P5
|
| Minimum initial clearance |
50 µm
|
| Maximum initial clearance |
80 µm
|
| Bore type |
Cylindrical
|
| d |
75 mm
|
Bore diameter |
|---|---|---|
| tΔdmp | -0.015 – 0 mm | Deviation limits of mid-range bore diameter |
| D |
160 mm
|
Outside diameter |
| tΔDmp | -0.025 – 0 mm | Deviation limits of mid-range outside diameter |
| B |
55 mm
|
Width |
| tΔBs | -0.06 – 0 mm | Deviation limits of ring width |
| d2 |
≈ 92.8 mm
|
Shoulder diameter of inner ring |
| D1 |
≈ 135 mm
|
Shoulder/recess diameter of outer ring |
| b |
8.3 mm
|
Width of lubrication groove |
| K |
4.5 mm
|
Diameter of lubrication hole |
| r1,2 |
min. 2.1 mm
|
Chamfer dimension |
|
Normal
|
ISO tolerance class for dimensions |
| da |
min. 87 mm
|
Diameter of shaft abutment |
|---|---|---|
| Da |
max. 148 mm
|
Diameter of housing abutment |
| ra |
max. 2 mm
|
Radius of fillet |
| SKF performance class |
SKF Explorer
|
|
| Basic dynamic load rating | C |
462 kN
|
| Basic static load rating | C0 |
475 kN
|
| Fatigue load limit | Pu |
48 kN
|
| Reference speed |
3 200 r/min
|
|
| Limiting speed |
4 300 r/min
|
|
| Limiting value | e |
0.35
|
| Calculation factor | Y1 |
1.9
|
| Calculation factor | Y2 |
2.9
|
| Calculation factor | Y0 |
1.8
|
| Range of section height at inner ring of assembled bearing | tKia |
5 µm
|
|---|---|---|
| Maximum run-out of inner ring side face to the bore | tSd |
8 µm
|
| Range of section height at outer ring of assembled bearing | tKea |
13 µm
|
| Perpendicularity of outer ring outside surface | tSD |
5 µm
|
| ISO tolerance class for geometrical tolerances |
P5
|
| Minimum initial clearance |
50 µm
|
| Maximum initial clearance |
80 µm
|
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