Limited Angle Torque Motor,a linear motor,product,TMR-120-25-004-2
Limited Angle Torque Motor, TMR-120-25-004-2
H2W Technologies Limited Angle Torque Motors are ideal for compact, limited angular excursion (<180º), rotary, closed loop servo applications. Unlike conventional rotary brush and brushless motors, the torquers are wound in such a way that no commutation is required for motion to occur. The result is a much simpler and more reliable system.

To determine your motion profile needs, use our rotary motion calculator.

Device TypeMR
Continuous Torque Range120 degrees2.1 rad
# of Poles2
Radial Clearance0.050 in1.3 mm
Housed w/ BearingsNo
Rotor Inertia0.36 oz-in²6.6 E-6 kg-m²
Total Mass0.33 oz150 grams
Resistance @ 20C5.4 ohms
Inductance @ 20C1.9 mH
Electrical Time Constant0.35 msec
Motor Constant1.8 in-oz/√watt0.013 N-cm/√watt
Torque Constant4.2 in-oz/amp0.029 N-cm/amp
Back EMF0.063 V/rad/sec
Torque @ 100% Duty4.0 in-oz0.028 N-cm
Power @ 100% Duty5.0 watts
Current @ 100% Duty1.0 amps
Torque @ 10% Duty12.0 in-oz0.084 N-cm
Power @ 10% Duty44.0 watts
Current @ 10% Duty3.0 amps
Outside Diameter2.5 in63.5 mm
Housing Thickness0.84 in21.3 mm
Product Drawing

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