
172:1 Metal Gearmotor 25Dx56L mm LP 12V
SKU: R3D-7720
€19.90 excl. VAT
Description
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. Exact gear ratio: 22 × 20 × 22 × 22 × 22 × 22 × 24 12 × 12 × 10 × 10 × 10 × 10 × 10 ≈ 171.79 : 1 The diagram below shows the dimensions of the 25D mm line of gearmotors (units are mm over [inches]). This diagram is also available as a downloadable PDF (223k pdf). Dimensions of the Pololu 25D mm metal gearmotors. Units are mm over [inches]. Warning : Do not screw too far into the mounting holes as the screws can hit the gears. We recommend screwing no further than 2mm (0.08″) into the screw hole. The face plate has two mounting holes threaded for M3 screws. You can use our custom-designed 25D mm metal gearmotor bracket (shown in the picture below) to mount the gearmotor to your project via these mounting holes and the screws that come with the bracket. Pololu 25D mm metal gearmotor bracket pair. Pololu 25D mm gearmotor with bracket. The 4 mm diameter gearbox output shaft works with Pololu universal aluminum mounting hub for 4mm shafts , which can be used to mount our larger Pololu wheels (60mm-, 70mm-, 80mm-, and 90mm-diameter) or custom wheels and mechanisms to the gearmotor’s output shaft as shown in the left picture below. Alternatively, you could use our 4mm scooter wheel adapter to mount many common scooter, skateboard, and inline skate wheels to the gearmotor’s output shaft as shown in the right picture below. Pololu 60×8mm wheel on a Pololu 25D mm metal gearmotor. A 25D mm gearmotor connected to a scooter wheel by the 4 mm scooter wheel adapter. These are the same type of motors used in the Wild Thumper all-terrain chassis , so the gearbox’s output shaft also works directly with the hex adapters included with the 120mm-diameter Wild Thumper wheels (the left picture below shows a 25D mm gearmotor while the right picture shows the smaller 20D mm gearmotor): Dagu Wild Thumper wheel 120×60mm (chrome) with Pololu 25D mm metal gearmotor. Dagu Wild Thumper wheel 120×60mm (metallic red) with Pololu 20D mm metal gearmotor. 12mm Hex Wheel Adapter for 4mm Shaft on a 20D mm Metal Gearmotor. We have a number of motor controllers and motor drivers that work with these 25D mm metal gearmotors. For the LP and MP versions, we recommend our MC33296-based motor drivers, for which we have basic single and dual carriers and a dual-channel shield for Arduino . For the HP versions, we recommend our VNH5019-based motor drivers (available as single and dual carriers ), though these can also be a good choice for the lower-power motors because they will run much cooler than the MC33926 carriers. If you are looking for higher-level control interfaces, such as USB, RC, analog voltages, or TTL serial, consider our Simple Motor Controllers , Jrk motor controllers , or TReX motor controllers ; these controllers are available in various power levels, an
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