BS2-2208-2RSK/VT143
Spherical roller bearing with tapered bore, integral sealing and relubrication features
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. Under normal operating conditions, sealed bearings are almost maintenance-free, keeping service costs and grease consumption low. The design includes features to facilitate relubrication.
- Accommodate misalignment
- High load carrying capacity
- Sealed for increased reliability, with relubrication features
- Low friction and long service life
- Increased wear resistance
Dimensions
| d |
40 mm
|
Bore diameter |
| tΔdmp |
0.0 – 0.025 mm |
Deviation limits of mid-range bore diameter |
| tΔSL |
0.0 – 0.025 mm |
Deviation limits of tapered slope |
| D |
80 mm
|
Outside diameter |
| tΔDmp |
-0.013 – 0.0 mm |
Deviation limits of mid-range outside diameter |
| B |
28 mm
|
Width |
| tΔBs |
-0.06 – 0.0 mm |
Deviation limits of ring width |
| d2 |
≈47.2 mm
|
Shoulder diameter of inner ring |
| D1 |
≈72.8 mm
|
Shoulder/recess diameter of outer ring |
| b |
6 mm
|
Width of lubrication groove |
| K |
3 mm
|
Diameter of lubrication hole |
| r1,2 |
min.1.1 mm
|
Chamfer dimension |
|
Normal
|
ISO tolerance class for dimensions |
Abutment dimensions
| Da |
max.73 mm
|
Diameter of housing abutment |
| ra |
max.1 mm
|
Radius of fillet |
Calculation data
| SKF performance class |
|
SKF Explorer
|
| Basic dynamic load rating |
C |
98.5 kN
|
| Basic static load rating |
C0 |
91.5 kN
|
| Fatigue load limit |
Pu |
10 kN
|
| Limiting speed |
|
4 000 r/min
|
| Limiting value |
e |
0.28
|
| Calculation factor |
Y1 |
2.4
|
| Calculation factor |
Y2 |
3.6
|
| Calculation factor |
Y0 |
2.5
|
Tolerances of run-out
| 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 |
8 µm
|
| Perpendicularity of outer ring outside surface |
tSD |
4 µm
|
| ISO tolerance class for geometrical tolerances |
|
P5
|
Radial internal clearance
| Minimum initial clearance |
35 µm
|
| Maximum initial clearance |
50 µm
|
Mounting information
| Recommended tightening angle for lock nut |
α |
115 °
|
