75:1 Micro Metal Gearmotor HPCB 12V
Micromotoreductor metálico, con escobillas de carbón. Relación del reductor: 75.81:1.
Peso: 0.010 Kg
Disponibilidad: En Stock
El producto no está disponible para la venta en este momento
This gearmotor is a miniature high-power, 12 V brushed DC motor with long-life carbon brushes and a 75.81:1 metal gearbox. It has a cross section of 10 × 12 mm, and the D-shaped gearbox output shaft is 9 mm long and 3 mm in diameter.
Key specs at 12 V: 400 RPM and 100 mA with no load, 22 oz-in (1.6 kg-cm) and 0.8 A at stall.
These tiny brushed DC gearmotors are available in a wide range of gear ratios—from 5:1 up to 1000:1—and with five different motors: high-power 6 V and 12 V motors with long-life carbon brushes (HPCB), and high-power (HP), medium power (MP), and low power (LP) 6 V motors with shorter-life precious metal brushes. The 6 V and 12 V HPCB motors offer the same performance at their respective nominal voltages, just with the 12 V motor drawing half the current of the 6 V motor. The 6 V HPCB and 6 V HP motors are identical except for their brushes, which only affect the lifetime of the motor.
The HPCB versions (shown on the left in the picture below) can be differentiated from versions with precious metal brushes (shown on the right) by their copper-colored terminals. Note that the HPCB terminals are 0.5 mm wider than those on the other micro metal gearmotor versions (2 mm vs. 1.5 mm), and they are about 1 mm closer together (6 mm vs. 7 mm).
Versions of these gearmotors are also available with an additional 1 mm-diameter output shaft that protrudes from the rear of the motor. This 4.5 mm-long rear shaft rotates at the same speed as the input to the gearbox and offers a way to add an encoder, such as our magnetic encoder for micro metal gearmotors (see the picture on the right), to provide motor speed or position feedback.
With the exception of the 1000:1 gear ratio versions, all of the micro metal gearmotors have the same physical dimensions, so one version can be easily swapped for another if your design requirements change. Please see the micro metal gearmotor comparison table for detailed specifications of all our micro metal gearmotors. This dynamically-sortable table can help you find the gearmotor that offers the best blend of speed, torque, and current-draw for your particular application. A more basic comparison table is available below.
Note: Stalling or overloading gearmotors can greatly decrease their lifetimes and even result in immediate damage. The recommended upper limit for instantaneous torque is 35 oz-in (2.5 kg-cm) for the 1000:1 gearboxes and 25 oz-in (2 kg*cm) for all the other gear ratios; . 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 and HPCB) motors; a general recommendation for brushed DC motor operation is 25% or less of the stall current.
In general, these kinds of motors can run at voltages above and below their nominal voltages; lower voltages might not be practical, and higher voltages could start negatively affecting the life of the motor.
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In terms of size, these gearmotors are very similar to Sanyo’s popular 12 mm NA4S DC gearmotors, and gearmotors with this form factor are occasionally referred to as N20 motors. The versions with carbon brushes (HPCB) have slightly different terminal and end-cap dimensions than the versions with precious metal brushes, but all of the other dimensions are identical.
|Size:||10 × 12 × 26 mm1|
|Shaft diameter:||3 mm2|
|Free-run speed @ 6V:||200 rpm3|
|Stall current @ 6V:||400 mA4|
|Stall torque @ 6V:||11 oz·in4|
|Free-run speed @ 12V:||400 rpm|
|Free-run current @ 12V:||100 mA|
|Stall current @ 12V:||800 mA|
|Stall torque @ 12V:||22 oz·in|
|Extended motor shaft?:||N|
|Long-life carbon brushes?:||Y|
|Motor type:||0.8A stall @ 12V (HPCB 12V - carbon brush)|
- 1 - Output shaft adds 9 mm to the 26 mm length.
- 2 - D shaft.
- 3 - This motor will run at 6 V but is intended for operation at 12 V.
- 4 - This motor will run at 6 V but is intended for operation at 12 V.
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