50:1 Metal Gearmotor 37Dx70L mm with 64 CPR Encoder

Product Code: JS17259
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49.95 USD
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Jsumo Robot parts shipment and price information
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  • ​This gearmotor is a powerful 12V brushed DC motor with a 50:1 metal gearbox and an integrated quadrature encoder that provides a resolution of 64 counts per revolution of the motor shaft, which corresponds to 3200 counts per revolution of the gearbox’s output shaft. These units have a 16 mm-long, 6 mm-diameter D-shaped output shaft.

    Key specs at 12 V: 200 RPM and 300 mA free-run, 170 oz-in (12 kg-cm) and 5 A stall.
     
    Using the Encoder

    A two-channel Hall effect encoder is used to sense the rotation of a magnetic disk on a rear protrusion of the motor shaft. The quadrature encoder provides a resolution of 64 counts per revolution of the motor shaft when counting both edges of both channels. To compute the counts per revolution of the gearbox output, multiply the gear ratio by 64. The motor/encoder has six color-coded, 11″ (28 cm) leads terminated by a 1×6 female header with a 0.1″ pitch, as shown in the main product picture.
    Color Function
    Red motor power (connects to one motor terminal)
    Black motor power (connects to the other motor terminal)
    Green encoder GND
    Blue encoder Vcc (3.5 – 20 V)
    Yellow encoder A output
    White encoder B output


    The Hall sensor requires an input voltage, Vcc, between 3.5 and 20 V and draws a maximum of 10 mA. The A and B outputs are square waves from 0 V to Vcc approximately 90° out of phase. The frequency of the transitions tells you the speed of the motor, and the order of the transitions tells you the direction. The following oscilloscope capture shows the A and B (yellow and white) encoder outputs using a motor voltage of 12 V and a Hall sensor Vcc of 5 V:

    Encoder A and B outputs for 37D mm metal gearmotor with 64 CPR encoder (motor running at 12 V).

    By counting both the rising and falling edges of both the A and B outputs, it is possible to get 64 counts per revolution of the motor shaft. Using just a single edge of one channel results in 16 counts per revolution of the motor shaft, so the frequency of the A output in the above oscilloscope capture is 16 times the motor rotation frequency.

  • All products shipped with sealed in box. All products packaged carefully. Before shipment, we test all electronics and control the mechanics of all products. So you will never be disappointed when you open our JSumo shipment box.

    We have 2 Shipment Options:

    • Registered Air Mail ( Fixed Price 9,95 USD, Free On Orders Over 199 USD)
      DHL Worldwide Express Shipment (Based on weight)

    TIME TABLE FOR INTERNATIONAL REGISTERED AIR MAIL

    Below, these countries are the only examples. If your country is not in the list, don't be afraid. We are shipping to all over the world including your country too:)

    *Colombia, Paraguay, Peru shipments are sent over Brazil Postal Service. ( Turkey >> Brasil >> Colombia, Paraguay or Peru) Because of that delays can happen. We are sending shipment code.

    What is your return policy?

    You may return a product for refund or exchange (if due to our error) within 30 days of the order shipment date. (The order shipment date and order notification are provided to you by email). All returns must be accompanied with a Return Merchandise Authorisation number (order number #).

    If we shipped you the wrong product, or it arrived defective or damaged

    No problem. Just contact us within 30 days of the item's original shipping date to arrange for the return of your purchase. Send us photo of wrong product. And we will send a replacement or refund you for your purchase, provided the returned item(s) are received back in their original packaging, along with all accessories, warranty cards, manuals, software, etc., where applicable.

  • All products shipped with sealed in box and packaged carefully. Before shipment, we test all electronics and control the mechanics of all products. So you will never be disappointed when you open our JSumo shipment box.

    We have 2 Shipment Options:

    • Registered Air Mail ( Fixed Price 9,95 USD, Free On Orders Over 199 USD)
      DHL Worldwide Express Shipment (Based on weight)

    TIME TABLE FOR INTERNATIONAL REGISTERED AIR MAIL

    Below, these countries are the only examples. If your country is not in the list, don't be afraid. We are shipping to all over the world including your country too:)

    *Colombia, Paraguay, Peru shipments are sent over Brazil Postal Service. ( Turkey >> Brasil >> Colombia, Paraguay or Peru) Because of that delays can happen. We are sending shipment code.

    What is your return policy?

    You may return a product for refund or exchange (if due to our error) within 30 days of the order shipment date. (The order shipment date and order notification are provided to you by email). All returns must be accompanied with a Return Merchandise Authorisation number (order number #).

    If we shipped you the wrong product, or it arrived defective or damaged

    No problem. Just contact us within 30 days of the item's original shipping date to arrange for the return of your purchase. Send us photo of wrong product. And we will send a replacement or refund you for your purchase, provided the returned item(s) are received back in their original packaging, along with all accessories, warranty cards, manuals, software, etc., where applicable.

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