Pololu 37Dx70L 50:1 Metal Gearmotor w/ 64 CPR Quadrature Encoder
Equipped with a 50:1 metal gearbox
Features 64 CPR quadrature encoder
Offers 3200 counts per gearbox revolution
Utilizes two-channel Hall effect encoder
Includes a 16 mm-long D-shaped output shaft
The Pololu 37Dx70L 50:1 Metal Gearmotor w/ 64 CPR Quadrature Encoder is a robust 12V brushed DC motor equipped with a 50:1 metal gearbox and an integrated quadrature encoder. This encoder provides a resolution of 64 counts per revolution of the motor shaft, translating to 3200 counts per revolution of the gearbox's output shaft. The gearbox primarily consists of spur gears, with helical gears incorporated in the first stage to minimize noise and enhance efficiency.
This gearmotor features a 16 mm-long, 6 mm-diameter D-shaped output shaft. It is the largest and most powerful model available in its range, with options for different gear ratios and voltages. The motor utilizes a two-channel Hall effect encoder to detect the rotation of a magnetic disk on the motor shaft, offering precise control over speed and direction.
The motor's faceplate includes six mounting holes designed for M3 screws, arranged in a hexagonal pattern. This design facilitates secure attachment using compatible brackets and hubs. The gearmotor's output shaft is compatible with various mounting hubs and adapters, allowing for versatile applications with different wheels and mechanisms.
The encoder requires an input voltage between 3.5 and 20 V and outputs square waves that indicate motor speed and direction. This gearmotor is compatible with a range of motor drivers and controllers, making it suitable for diverse projects requiring high power and precision.
If you are not satisfied with a product purchased from the Site, you may request a return within 30 days from the delivery date, unless the product is listed under the Return Exceptions below or is subject to specific return conditions noted on the product page.
This return policy also applies, as a minimum standard, to products sold and fulfilled by third-party vendors through the Marketplace.
Returns under this policy concern non-defective products. In the case of a confirmed manufacturing defect, remedies are handled under the Warranty terms, at the Vendor's discretion. See the Warranty section.
Return Conditions
To qualify for a refund under the 30-day return policy, all of the following conditions must be met:
A valid Return Authorization (RA) number must be obtained prior to returning the product. Returns without an RA number will be refused.
The RA number is valid for 30 days. The returned item must be received within that period.
The RA number must be included with the return.
Products must be returned in unused, unmodified condition (e.g., no scratches, alterations, missing parts, or signs of installation/use) and in their original packaging, suitable for resale.
Shipping fees are non-refundable. Return shipping costs are the responsibility of the customer, except in cases of a product confirmed defective through RobotShop's troubleshooting process or of a verified shipping error by RobotShop.
Refunds are processed within 7 days after receipt and inspection of the returned item.
A $100 cleaning fee may apply to domestic robots returned in used or unclean condition.
A 20% restocking fee may apply to large-quantity returns of items ordered specifically for the customer from the manufacturer or not part of RobotShop's standard inventory.
Return Exceptions
The following products are not eligible for return or refund under this policy:
Used, damaged, or modified products — Items that show signs of use, wear, or alteration, making them unsuitable for resale.
Consumables — Use and wear-and-tear components, altered or depleted through use (e.g., batteries, belts, brushes, gears, filament, tires, disposable bags, lubricants, greases, waxes, etc.). Not eligible for return once opened or used.
Perishables — Goods liable to deteriorate or expire rapidly. Not eligible for return.
Sealed goods (health or hygiene) — Items sealed for health-protection or hygiene reasons (e.g., masks, gloves, odor-absorbing products). Not eligible for return once unsealed.
Build-it-yourself products and items requiring customer assembly — Including robots & kits, robot parts, and other products requiring assembly or soldering. Not eligible for return once assembled, soldered, or installed.
Digital Goods, Software, and Apps — Final sale only, due to licensing restrictions.
Clearance Items — Products identified as clearance or final sale, including end-of-life or discontinued items.
Custom-made, personalized, or special-order items — Products manufactured, configured, adapted, or built to the customer's own specifications and requirements.
On-Demand Items — Standard catalogue products not stocked by RobotShop and ordered specifically to fulfill a customer request.
While the same return policy applies, these orders require a separate contact process for returns.
RobotShop Fulfilled Orders → submit a support ticket from your account under My Support Tickets.
Marketplace Vendor Orders → submit a ticket from your account under My Marketplace Tickets to contact the vendor directly.
Note: Marketplace vendor products are normally labelled with SKUs starting with RM, and identified on the product page with the mention "Sold and fulfilled by [Vendor Name]".
