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Silencer® Series High Speed Brushless DC Motors

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The Silencer® BN12, 23 and 34 high speed brushless motors offer relatively high speeds in the same BN package size. Ideal for applications involving higher speeds at higher power levels, such as medical centrifuge, pumps and blowers. Utilizing high energy rare earth magnets, these motors provide excellent value in a high speed, high power motor.

Reliable, Low-Cost Operation

The compact BN motors are well-suited for applications demanding low audible noise and long life. An aluminum housing protects the unit in rugged applications and environments. Typical options include electronic drives, encoders and gearheads, as well as Hall effect, resolver and sensorless feedback.

For more information about how this product can be tailored to fit your specific application, contact our motors experts.

Contact Our Experts

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Overview
Specifications
Resources

Features

  • Inside rotor construction for quick acceleration
  • 4 pole motors for high speed applications
  • Compact size
  • Continuous torque to 78.0 oz-in
  • High energy neodymium magnets
  • Safe, arcless operation
  • High speed capability – up to 35,000 rpm
  • High torque per dollar ratio

Benefits

  • Operation at any single speed - not limited to AC frequency
  • Motor life is not limited to brush or commutator life
  • An essentially linear speed / torque curve
  • Efficient operation without losses associated with brushes and commutation or armature induction
  • Precise, variable speed control
  • Extremely quiet operation
  • Long-life operation

Markets

  • Medical equipment - pumps, blowers and centrifuges
  • Scanners
  • Packaging equipment and printing products
  • HVAC equipment (air handling)

Specifications

Model Motor Diameter Available Lengths Voltage Ratings (VDC) Range-Rated Torque
(oz-in)		 Range-Rated Speed (rpm) Range-Rated Power (watts)
BN12HS 1.20 in 1.30 - 2.80 in
33.0 - 71.1 mm		 12/24/36 1.2 - 4.2 18450-35670 21 - 60
BN23HS 2.25 in 1.41 - 2.91 in
35.8 - 73.9 mm		 24/36/48 3.5 - 21.0 13285-19818 49 - 232
BN34HS 3.40 in 2.50 - 3.50 in
63.5 - 88.9 mm		 24/50/100 34 - 78 9340-14640 381 - 591

Resources

3D Model Downloads >