Brushless DC Parallel Shaft Gearmotors

Brushless DC Parallel Shaft Gearmotors

Merkle-Korff offers our Brushless DC gearmotors with either hall only feedback or a fully integrated control board, internal to the motor. The integral control is a fully digital control with the latest in micro-processor technology on board. The motor can be mounted not only to our most robust parallel shaft gear box that we manufacture (MK’s GF gearbox) but it can also be fitted to our new line of 52 mm planetary gear heads.

Our domestically based engineering team has the expertise to customize the software to meet the various demands and requirements of virtually any application. Our brushless DC gearmotors are currently being utilized in virtually every market we serve, including the commercial food equipment, pellet stove, satellite dish and pump markets. For those applications that require a higher degree of controllability or a higher efficiency solution to meet your green initiatives, the Merkle-Korff Brushless DC product is the perfect solution.

  • Features
    Internal controller
    • Two quadrant programmable control: current limiting, acceleration, speed regulation, velocity profiles
    • Built-in quadrature encoder
    • Over-current protection
    • Locked Rotor Protection
    • 0 – 5 or 0 – 10 VDC speed reference voltage
    • Dynamic braking and holding capability
    • Input voltage polarity protection
    • Electronic commutation
    • Long life
    • Ball bearing construction
    • Class F Insulation
    • 3 phase stage – wye connection
    • High energy/skewed magnets for reduced cogging
    • Integral hall sensors for rotor position


    • Sintered or needle bearings: output shaft
    • Sintered powder metal gearing
    • Helical first stage for low audible noise
    Optional Features
    • Hall only output: externally controlled
    • Incremental optical encoder
  • Applications
    • Commercial food equipment
    • Pumps
    • Business equipment/automation
    • Pellet stove
    • Medical/laboratory
    • Satellite positioning systems
    • Custom solutions
  • Specifications
    • Gearbox Housing: Zinc Die-Cast
    • Input voltage: 12 to 32 Vdc
    • Insulation class: F (155° C)
    • Bi-directional
    • Integral Drive Electronics available on most models
    • Speed Control: PWM or Analog input. Closed Loop Programmable on some models
    • Velocity profile: programmable on some models
    • Acceleration: programmable on some models
    • Temperature protection: 90° C/110° C std
    • Current limit: programmable
    • Locked Rotor Protection
    • Tachometer O/P: 2 Ch – 6PPR 5700B: 6 PPR (magnetic) and 24H: 4 PPR (magnetic) or 100 PPR (optical)
    • Gearing peak torque: 200 Lb. In
    • Speed range: 0.25 – 100 RPM