This gearmotor consists of a high-power, 12 V brushed DC motor combined with a 46.85:1 metal spur gearbox, and it has an integrated 48 CPR quadrature encoder on the motor shaft, which provides 2248.86 counts per revolution of the gearbox’s output shaft. The gearmotor is cylindrical, with a diameter just under 25 mm, and the D-shaped output shaft is 4 mm in diameter and extends 12.5 mm from the face plate of the gearbox.
Key specs at 12 V: 210 RPM and 300 mA free-run, 165 oz-in (12 kg-cm) and 5.6 A stall.
These cylindrical brushed DC gearmotors are available in a wide range of gear ratios and with five different motors (two power levels of 6V motors and three power levels of 12V motors). The gearmotors all have the same 25 mm diameter case and 4 mm diameter gearbox output shaft, so it is generally easy to swap one version for another if your design requirements change (though the length of the gearbox tends to increase with the gear ratio). All versions are also available with an integrated 48 CPR quadrature encoder on the motor shaft.
Note: Stalling or overloading gearmotors can greatly decrease their lifetimes and even result in immediate damage. For these gearboxes, the recommended upper limit for instantaneous torque is 200 oz-in (15 kg-cm); . Stalls can also result in rapid (potentially on the order of seconds) thermal damage to the motor windings and brushes, especially for the versions that use high-power (HP) motors; a general recommendation for brushed DC motor operation is 25% or less of the stall current.
|Size:||25D x 64L mm|
|Shaft diameter:||4 mm|
|Free-run speed @ 6V:||105 rpm1|
|Stall current @ 6V:||2800 mA1|
|Stall torque @ 6V:||80 oz·in1|
|Free-run speed @ 12V:||210 rpm|
|Free-run current @ 12V:||300 mA|
|Stall current @ 12V:||5600 mA|
|Stall torque @ 12V:||165 oz·in|
|Lead length:||8 in2|
|Motor type:||5.6A stall @ 12V (HP 12V)|
|Part. No. :||3217|
|Shaft Diam. mm :||4|
Questions on 3217 - 47:1 Metal Gearmotor 25Dx52L mm HP 12V with 48 CPR Encoder
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