Single row deep groove ball bearings are the most widely used bearing type and are particularly versatile. They have low friction and are optimized for low noise and low vibration, which enables high rotational speeds. They can accommodate radial and axial loads in both directions, are easy to mount, and require less maintenance than many other bearing types.
| SKF performance class |
SKF Explorer
|
| d |
25 mm
|
Bore diameter |
|---|---|---|
| D |
47 mm
|
Outside diameter |
| B |
12 mm
|
Width |
| d1 |
≈ 32 mm
|
Shoulder diameter |
| D2 |
≈ 42.2 mm
|
Recess diameter |
| D3 |
44.6 mm
|
Diameter of snap ring groove |
| D4 |
52.7 mm
|
Outside diameter of snap ring |
| b |
1.35 mm
|
Width of snap ring groove |
| C |
2.06 mm
|
Distance from outer ring side face to snap ring groove |
| f |
1.12 mm
|
Width of snap ring |
| r0 |
max. 0.4 mm
|
Bottom radius of snap ring groove |
| r1,2 |
min. 0.6 mm
|
Chamfer dimension |
| da |
min. 28.2 mm
|
Diameter of shaft abutment |
|---|---|---|
| da |
max. 31.9 mm
|
Diameter of shaft abutment |
| Da |
max. 43.8 mm
|
Diameter of housing abutment |
| Db |
min. 54 mm
|
Diameter of snap ring recess in the housing |
| ba |
min. 1.5 mm
|
Width of snap ring recess in the housing |
| Ca |
max. 3.18 mm
|
Distance from outer ring side face to snap ring back face |
| ra |
max. 0.6 mm
|
Radius of shaft or housing fillet |
| Basic dynamic load rating | C |
11.9 kN
|
|---|---|---|
| Basic static load rating | C0 |
6.55 kN
|
| Fatigue load limit | Pu |
0.275 kN
|
| Reference speed |
32 000 r/min
|
|
| Limiting speed |
16 000 r/min
|
|
| Minimum load factor | kr |
0.025
|
| Calculation factor | f0 |
14
|
| Mass bearing |
0.08 kg
|
| Snap ring |
SP 47
|
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