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4752

30:1 Metal Gearmotor 37Dx68L mm 12V with 64 CPR Encoder (Helical Pinion), 4752

£52.25

This gearmotor is a powerful 12V brushed DC motor with a 30:1 metal gearbox and an integrated quadrature encoder that provides a resolution of 64 counts per revolution of the motor shaft, which corresponds to 1920 counts per revolution of the gearbox’s output shaft.

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The gearbox is composed mainly of spur gears, but it features helical gears for the first stage for reduced noise and improved efficiency. These units have a 16 mm-long, 6 mm-diameter D-shaped output shaft.

In general, these kinds of motors can run at voltages above and below the nominal voltages; lower voltages might not be practical, and higher voltages could start negatively affecting the life of the motor.

The gearboxes are composed mainly of spur gears, but they feature helical gears for the first stage for reduced noise and improved efficiency:

 

Size: 37D × 68L mm1
Weight: 200 g
Shaft diameter: 6 mm2

General specifications

Gear ratio: 30:1
No-load speed @ 12V: 330 rpm
No-load current @ 12V: 0.2 A
Stall current @ 12V: 5.5 A3
Stall torque @ 12V: 14 kg·cm3
Max output power @ 12V: 12 W
No-load speed @ 6V: 170 rpm4
No-load current @ 6V: 0.15 A4
Stall current @ 6V: 3.0 A4
Stall torque @ 6V: 7.9 kg·cm4
Motor type: 12V

Performance at maximum efficiency

Max efficiency @ 12V: 54 %
Speed at max efficiency: 280 rpm
Torque at max efficiency: 1.8 kg·cm
Current at max efficiency: 0.78 A
Output power at max efficiency: 5.1 W

General specifications

Lead length: 20 cm5
Encoders?: Y
Encoder resolution: 64 CPR

Notes:

    1Length measurement is from gearbox face plate to back of encoder cap (it does not include the output shaft). See dimension diagram for details.2D shaft.3Stalling is likely to damage the gearmotor. Stall parameters come from a theoretical extrapolation of performance at loads far from stall. As the motor heats up, as happens as it approaches an actual stall, the stall torque and current decrease.4This motor will run at 6 V but is intended for operation at 12 V.5May vary by a few centimeters.