Pololu 227:1 Metal Gearmotor 25Dx71L mm MP 12V w/ 48 CPR Encoder
Integrates a 48 CPR quadrature encoder
Ensures precise control with 10,884 counts
Features a robust 226.76:1 gearbox
Adapts easily into multiple systems
Offers flexibility with separate components
The Pololu 227:1 Metal Gearmotor 25Dx71L mm MP 12V w/ 48 CPR Encoder is a sophisticated component designed for precision and efficiency in various applications. This gearmotor integrates a medium-power, 12 V brushed DC motor with a robust 226.76:1 metal spur gearbox. It features an advanced 48 CPR quadrature encoder on the motor shaft, delivering an impressive 10,884.47 counts per revolution of the gearbox’s output shaft, ensuring high-resolution feedback for precise control.
The gearmotor is cylindrical, with a diameter slightly under 25 mm, and includes a D-shaped output shaft that is 4 mm in diameter, extending 12.5 mm from the gearbox's face plate. This design facilitates easy integration into a wide range of mechanical systems. The encoder utilizes a two-channel Hall effect sensor to detect the rotation of a magnetic disk on the motor shaft, providing accurate speed and direction information through square wave outputs.
This gearmotor is part of a versatile family of cylindrical brushed DC gearmotors, available in various gear ratios and power levels, allowing for easy substitution to meet changing design requirements. The motor and encoder assembly can be obtained separately, and versions without the encoder are also available, offering flexibility in application.
Note: The Hall sensor requires an input voltage between 3.5 and 20 V and draws a maximum of 10 mA.
1x Pololu 227:1 Metal Gearmotor 25Dx71L mm MP 12V w/ 48 CPR Encoder
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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
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The RA number is valid for 30 days. The returned item must be received within that period.
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Return Exceptions
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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, tyres, 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.
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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 fulfil a customer request.
* United-Kingdom consumers retain their statutory Right of Cancellation on these items. Its exercise is subject to the conditions and exclusions set out in the Statutory Right of Cancellation, and any reimbursement may be reduced to reflect a loss in value resulting from handling beyond inspection.
How to Request a Return Authorisation (RA)
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.
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