Single direction thrust ball bearings can accommodate axial loads in one direction. They must not be subjected to any radial load. Their separable components facilitate mounting/dismounting and maintenance inspections. Many of the components are interchangeable. The shaft washers have a ground bore that enables an interference fit.
| d |
12 mm
|
Bore diameter |
|---|---|---|
| tΔdmp | -0.007 – 0 mm | Deviation limits of mid-range bore diameter |
| D |
37 mm
|
Outside diameter |
| tΔDmp | -0.009 – 0 mm | Deviation limits of mid-range outside diameter |
| B |
12 mm
|
Width |
| tΔBs | -0.06 – 0 mm | Deviation limits of ring width |
| d1 |
≈ 19.51 mm
|
Shoulder diameter |
| D2 |
≈ 31.48 mm
|
Recess diameter |
| r1,2 |
min. 1 mm
|
Chamfer dimension |
|
P6 and tighter width tolerance
|
ISO tolerance class for dimensions |
| da |
min. 17.6 mm
|
Diameter of shaft abutment |
|---|---|---|
| Da |
max. 31.4 mm
|
Diameter of housing abutment |
| ra |
max. 1 mm
|
Radius of shaft or housing fillet |
| SKF performance class |
SKF Explorer
|
|
| Basic dynamic load rating | C |
10.1 kN
|
| Basic static load rating | C0 |
4.15 kN
|
| Fatigue load limit | Pu |
0.176 kN
|
| Reference speed |
45 000 r/min
|
|
| Limiting speed |
28 000 r/min
|
|
| Minimum load factor | kr |
0.03
|
| Calculation factor | f0 |
11
|
| Range of section height at inner ring of assembled bearing | tKia |
4 µm
|
|---|---|---|
| Maximum run-out of inner ring side face to the bore | tSd |
7 µm
|
| Maximum axial run-out of inner ring of assembled bearing | tSia |
7 µm
|
| Range of section height at outer ring of assembled bearing | tKea |
7 µm
|
| Perpendicularity of outer ring outside surface | tSD |
4 µm
|
| Maximum axial run-out of outer ring of assembled bearing | tSea |
8 µm
|
| ISO tolerance class for geometrical tolerances |
P5
|
| d |
0.4724 in
|
Bore diameter |
|---|---|---|
| tΔdmp | -7 – 0 µm | Deviation limits of mid-range bore diameter |
| D |
1.4567 in
|
Outside diameter |
| tΔDmp | -9 – 0 µm | Deviation limits of mid-range outside diameter |
| B |
0.4724 in
|
Width |
| tΔBs | -60 – 0 µm | Deviation limits of ring width |
| d1 |
≈ 0.7681 in
|
Shoulder diameter |
| D2 |
≈ 1.2394 in
|
Recess diameter |
| r1,2 |
min. 0.0394 in
|
Chamfer dimension |
|
P6 and tighter width tolerance
|
ISO tolerance class for dimensions |
| da |
min. 0.6929 in
|
Diameter of shaft abutment |
|---|---|---|
| Da |
max. 1.2362 in
|
Diameter of housing abutment |
| ra |
max. 0.0394 in
|
Radius of shaft or housing fillet |
| SKF performance class |
SKF Explorer
|
|
| Basic dynamic load rating | C |
2 271 lbf
|
| Basic static load rating | C0 |
933 lbf
|
| Fatigue load limit | Pu |
40 lbf
|
| Reference speed |
45 000 r/min
|
|
| Limiting speed |
28 000 r/min
|
|
| Minimum load factor | kr |
0.03
|
| Calculation factor | f0 |
11
|
| Range of section height at inner ring of assembled bearing | tKia |
4 µm
|
|---|---|---|
| Maximum run-out of inner ring side face to the bore | tSd |
7 µm
|
| Maximum axial run-out of inner ring of assembled bearing | tSia |
7 µm
|
| Range of section height at outer ring of assembled bearing | tKea |
7 µm
|
| Perpendicularity of outer ring outside surface | tSD |
4 µm
|
| Maximum axial run-out of outer ring of assembled bearing | tSea |
8 µm
|
| ISO tolerance class for geometrical tolerances |
P5
|
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