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The HT is a new revolutionary high torque brushless DC motor. Compared to other brushless motors, the HT Motor has a flat torque–speed curve meaning that the speed is less influenced when the torque is increased. 

The secret to that is found how the magnetic circuit is built. 

A combination of SMAC’s patent pending Halbach magnets and printed coil technology achieves higher torque/amp.

Most small motors run at high RPMs but have low torque. 

These are not well fitted for robotic applications. 

Expensive and heavy gears are required to get to the required torque. 

Higher currents and/or voltages are needed to get useful torques.
Features
  • A combination of SMAC’s patent pending Halbach magnets and printed coil technology
  • Printed coil allows coil shapes impossible to achieve with conventional windings.
  • Rotary encoder 2K or 24K optional
  • Gear ratio 4:1 or 16:1 optional (Other ratio available upon request.)
  • Competitive pricing

Specifications

Models

  • HT035
  • HT055

Apply Voltage (VDC)

  • 48

Power (W)

  • HT035: 26
  • HT055: 37.8

Terminal Resistance (Phase-to-Phase) (Ohm)

  • 8.3

Efficiency, Maximum (%)

  • HT035: 72.7
  • HT055: 85

No-load Speed (RPM)

  • HT035: 3400
  • HT055: 851

No-load Current (A)

  • HT035: 0.041
  • HT055: 0.36

Stall torque (mNm)

  • HT035: 560
  • HT055: 1995

Stall Current (A)

  • HT035: 4.7
  • HT055: 6

Friction Torque (Static) (mNm)

  • HT035: 10.1
  • HT055: TBA

Friction Torque (Dynamic) (mNm)

  • HT035: 6.6
  • HT055: TBA

Speed Constant (RPM/V)

  • HT035: 66.2
  • HT055: TBA

Back-EMF Constant (V/RPM)

  • HT035: 14.7
  • HT055: 50.4

Torque Constant (mNm/A)

  • HT035: 110
  • HT055: 333

Current Constant (A/mNm)

  • HT035: 0.02
  • HT055: TBA

Speed of n-M-Curve (speed/Torque Gradient) (RPM/mNm)

  • HT035: 4.85
  • HT055: 0.34

Terminal Inductance (Phase-to-Phase) (mH)

  • HT035: 0.711
  • HT055: 4.5

Mechanical Time Constant (ms)

  • HT035: 12
  • HT055: 3.3

Rotor Inertia (grcm²)

  • HT035: 136
  • HT055: 940

Angular Acceleration (10x3 Rod/s2)

  • HT035: 28.3
  • HT055: TBA

Thermal Resistance (Winding to Housing) (K/W)

  • HT035: 1.9
  • HT055: 0.36

Thermal Resistance (Housing to Ambient) (K/W)

  • HT035: 10.4
  • HT055: 6.4

Thermal Time Constant (Housing) ms (s)

  • HT035: 1390
  • HT055: TBA

Thermal Time Constant (Coil) ms (s)

  • HT035: 33
  • HT055: TBA

Motor Type

  • HT035: Brushless
  • HT055: Brushless

Pole Pair

  • HT035: 6
  • HT055: 6

Rotor Mass (gr)

  • HT035: 140
  • HT055: 350

Total Mass (gr)

  • HT035: 256
  • HT055: 980

Encoder Option

  • HT035: 2K or 24K
  • HT055: 2K or 24K

Gearbox Option

  • 4: 1 or 16: 1

Controller Option

  • Built-in Servo Controller

Terminal Resistance in Testing (ohm) (Motor & Cable)

  • 8.9

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