SKF
Motor Encoder Units
SKF motor encoder units combine a deep groove ball bearing with a magnetic encoder and sensor package to deliver precise rotor speed and position feedback directly from the motor shaft. Designed for electric motors in applications ranging from industrial drives to electric vehicles, these units stream data to motor controllers for accurate vector control and commutation. They eliminate external sensor mounting brackets and exposed cables, improving reliability and reducing electromagnetic interference risks. The compact bearing unit fits within standard bearing envelopes, making it an ideal upgrade for smart motor designs. Signal accuracy supports both high-speed and low-speed operation, enabling energy-efficient control algorithms that meet modern motor efficiency standards.
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Trusted by Industry Leaders
Direct Rotor Feedback
Instantaneous speed and position data for closed-loop control.
Compact and Protected Design
Integrated into bearing; no external encoder.
High Signal Accuracy
Consistent output across wide speed range.
EMI Immune
Magnetic sensing principle resists electrical noise.
Simplified Motor Assembly
One component instead of separate bearing plus encoder.
Standard Motor Bearing Dimensions
Drop-in for many motor frame sizes.
Benefits for IE4 and IE5 Motor Efficiency Standards
Precise rotor position allows advanced drive algorithms that optimize current waveforms, minimizing iron and copper losses. This directly contributes to meeting ultra-premium efficiency requirements. SKF motor encoder units are key enablers for next-generation motor platforms.
Installation and Connection Guidelines
The bearing unit’s sensor has a connector for cable attachment. Care must be taken to avoid applying force through the connector during mounting. SKF provides detailed cable routing and EMC guidelines to ensure signal integrity in the installed environment.