Motor encoder unit, with enhanced sensor protection, combine bearing and sensor functionality into a single, compact, robust and easy to install unit. They enable accurate and continuous monitoring of speed and direction of rotation. The units include integrated protection for their electronic sensors that enables them to deliver accurate data, even in harsh electromagnetic environments, while avoiding electronic failures, which can result in a reduction of maintenance and warranty costs.
| d |
25 mm
|
Bore diameter |
|---|---|---|
| D |
52 mm
|
Outside diameter bearing |
| B1 |
21.2 mm
|
Width |
| B |
15 mm
|
Width of bearing part |
| d1 |
≈ 34.35 mm
|
Shoulder diameter |
| d2 |
31.6 mm
|
Inner diameter of sensor |
| D1 |
≈ 46.3 mm
|
Recess diameter |
| D2 |
51.46 mm
|
Outside diameter of sensor |
| D3 |
49.73 mm
|
Diameter of snap ring groove |
| C |
2.46 mm
|
Distance from outer ring side face to snap ring groove |
| b |
1.35 mm
|
Width of snap ring groove |
| r0 |
0.4 mm
|
Bottom radius of snap ring groove |
| r1,2 |
min. 1 mm
|
Chamfer dimension |
| L |
534 mm
|
Cable length |
|
± 10 mm
|
Tolerance for cable length L |
| da |
min. 30 mm
|
Diameter of shaft abutment |
|---|---|---|
| db |
min. 30 mm
|
Diameter of shaft abutment |
| db |
max. 31.3 mm
|
Diameter of shaft abutment |
| Da |
max. 47 mm
|
Diameter of housing abutment |
| ra |
max. 1 mm
|
Radius of shaft or housing fillet |
| Cable connector type |
Free cable end
|
|
| Number of pulses per revolution | N |
48
|
| Period accuracy |
± 3 %
|
|
| Phase shift output signal |
90 °
|
|
| Phase shift output signal tolerance |
± 30 °
|
|
| Duty cycle |
50 %
|
|
| Duty cycle tolerance |
± 10 %
|
| SKF performance class |
SKF Explorer
|
|
| Basic dynamic load rating | C |
14 kN
|
| Basic static load rating | C0 |
7.8 kN
|
| Fatigue load limit | Pu |
0.335 kN
|
| Limiting speed |
8 500 r/min
|
|
| Minimum load factor | kr |
0.025
|
| Calculation factor | f0 |
14
|
| Mass sensor unit |
0.16 kg
|
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