Commutation Sensor-Bearing Unit

The Commutation Sensor-Bearing Unit from SKF provides three digital commutation signals for six step drive control.

The SKF Commutation Sensor-Bearing Unit delivers three high-quality digital commutation signals for six step drive control, together with low friction and high speed bearing functionality.

  • Enables drive and control of electric motors in an accurate and robust manner
  • Design is a combination of commutation direct drive sensor with low-friction and high-speed bearing tolerances
  • Customizable to electric motor size and number of pole pairs
  • Includes angular shiftable sensor body       
  • Features three digital triggered signals
  • Provides duty cycle 50% ±1%
  • Phase shift of 120 degrees ±10 degrees (electrical)
  • Operating temperature range of –40 C to 150 C
  • Very robust against high electromagnetic interferences and electric motor magnetic fields
  • Provides high speed ability (shaft size dependant)
  • Features high sensor bandwidth
  • Includes optimized torque ripple and system noise, and good electric motor torque stability
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