JGB37-520 DC Gear Motor with Hall Encoder, 12V/24V, 7–960 RPM, 37mm Metal Gearbox and 6mm D-Shaft

JGB37-520 Brushed DC Gear Motor with Hall Encoder

The JGB37-520 is a compact brushed DC gear motor with an A/B incremental Hall encoder, a metal reduction gearbox, a 6mm D-shaped output shaft and reversible rotation. Choose a 12V or 24V motor, the required no-load output speed, and a motor-only or accessory package for robotics, small mechanisms and electronics projects.

The selectable speeds are 7, 12, 22, 35, 45, 66, 107, 200, 319, 600 and 960 RPM. These options match the supplier's 6000RPM motor-before-reduction series. Output RPM is measured without load; speed decreases under load. A bracket shown in a photograph is included only when the selected Package names a bracket.

Construction and Speed Control

• Metal reduction gears in a multi-stage arrangement, copper winding, permanent-magnet motor and carbon brushes.
• PWM speed control is possible with a compatible external brushed-DC controller. A controller is included only in the specified packages.
• Swap only the red and white motor power leads to reverse rotation. Keep encoder and controller supply polarity correct; stop the motor before changing direction.
• The gear ratio determines the speed/torque trade-off. Reducing speed electrically does not provide the same torque increase as selecting a higher reduction ratio.

Mechanical Specifications

Dimensions are supplier reference measurements and may vary. Motor appearance and components can differ between versions. The encoder supplies feedback signals; closed-loop control requires a suitable external controller. Encoder temperature claims do not extend the complete motor operating range.

6000RPM Motor Series — Performance Reference

This series matches the selectable speed family. The tables also retain the supplier's non-selectable reference speeds (85, 28, 15 and 9.5 RPM) for completeness; they do not create additional purchase options. Values are supplier data, not independent test results. Torque is in kgf·cm, not kilograms of lifting capacity.

12V — 6000RPM Before Reduction

24V — 6000RPM Before Reduction

10000RPM Motor Series — Additional Supplier Reference Only

The supplied image also includes the following higher-speed motor series. This is reference information only: it is not a separately selectable series in this listing. Do not apply these figures to a purchased 6000RPM-series variant, even where an output RPM happens to overlap.

12V — 10000RPM Before Reduction (Reference Only)

6V / 5000RPM Series — Additional Supplier Reference Only

This source table is retained for reference and is not a selectable voltage or series in this listing.

Hall Encoder Specifications and Wiring

The motor supply and encoder supply are separate circuits. Use 12V or 24V for the motor according to the option, and only 3.3–5V DC for the encoder. Never apply motor voltage to the encoder or signal wires.

The source identifies yellow and green as the two signal lines without assigning their A/B order. Check channel phase in your application. Never reverse the blue/black encoder supply, and never connect power directly to either signal line.

Optional Mounting Bracket

The illustrated L-bracket is 1.5mm thick, approximately 40mm wide, with a 40mm base and 47mm upright. The motor mounting pattern is marked 31mm pitch diameter with six 3.2mm holes and 6.3mm recesses. The central opening is marked 2 × R6.5 with 14mm centre spacing. The base drawing shows four 3.5mm holes at 24 × 30mm spacing and an 8mm side offset; the upright includes a 20mm reference dimension. The bracket is supplied only with the applicable Package.

Wiring and Use

Use a DC motor supply matching the selected voltage and a separate regulated 3.3–5V encoder supply. If using a PWM motor controller, connect its motor output only to the red and white motor leads. Keep encoder power and signals separate from the motor power output. Stop before reversing direction and verify every connection before applying power.

Choose the motor by its rated-load torque rather than its stall torque. Do not overload, stall or operate close to stall: the motor or gears can be damaged. Loads above the rated condition reduce speed. Lowering electrical speed can also reduce available torque. Controller ratings, adapter mains-input rating, plug type and included cable/connector details are not fully specified in the supplied listing; verify these details for the selected accessories.

Torque and Unit Reference

For a static load, required torque in kgf·cm equals load in kgf multiplied by lever radius in cm. The supplier illustrates a 10kg load: 10kgf·cm at a 1cm radius, or 100kgf·cm at a 10cm radius. This is an explanatory example, not this motor's lifting rating. Allow for friction, acceleration and the mechanism's actual operating load.

Package Contents

One JGB37-520 motor with Hall encoder and six-pin connection cable in the selected voltage and speed, plus only the accessories named in the Package option:

• Motor Only
• Motor + Bracket
• Motor + Speed Controller
• Motor + Power Supply
• Motor + Bracket + Speed Controller
• Motor + Bracket + Power Supply
• Motor + Speed Controller + Power Supply
• Motor + Bracket + Speed Controller + Power Supply

Motor Only does not include a bracket, speed controller or power supply. Product and accessory illustrations are reference views.

Details

English versions of the supplier illustrations, with explanations and series-specific reference notes.

Encoder Motor Overview

The JGB37-520 combines a brushed DC motor, metal reduction gearbox and Hall encoder. Choose the voltage, no-load speed and accessory package above.

Torque and Speed Control

Gear reduction determines the speed and torque trade-off. PWM control requires a suitable external controller. Reverse only the motor power leads, keeping encoder power polarity unchanged.

Internal Construction

The source illustrates metal gears, copper windings, permanent magnets, carbon brushes and the rear Hall encoder. Internal parts may vary between production versions.

Mechanical Dimensions

Dimensions are in millimetres. Gearbox length depends on the reduction ratio. The drawing specifies 3.5mm mounting-hole depth, while the annotated photograph below specifies 4mm; verify screw engagement on the actual motor.

Optional Mounting Bracket

This bracket is included only when the selected Package names a bracket. Its mounting dimensions are shown below.

Motor and Encoder Dimensions

The encoder assembly adds an 11.75mm rear section. The supplied six-pin cable is approximately 144mm long. Overview ratings span multiple source series; refer to the selected series in the performance tables.

Encoder Wiring and Signals

Motor power uses the red and white wires. Encoder power uses blue (+3.3–5V) and black (GND); yellow and green carry the two encoder signals. The source does not assign A/B order to those two colours. Never apply 12V/24V motor voltage to encoder or signal connections.

Torque Selection Reference

These pulley examples explain torque and lever radius; they are not lifting-capacity ratings for this motor. Allow for friction, acceleration and actual load.

6V / 5000RPM Series — Reference Only

This additional source table is provided for reference. Neither this voltage nor this motor series is selectable in this listing.

12V / 6000RPM Series

This is the 12V speed family used by the selectable variants. The source also lists 85, 28, 15 and 9.5RPM reference speeds that are not available as purchase options. Stall torque is not a continuous operating rating.

24V / 6000RPM Series

This is the 24V speed family used by the selectable variants. All values are supplier reference data. Use the selected voltage and rated-load figures when designing the mechanism.

12V / 10000RPM Series — Reference Only

This higher-speed source series is not a selectable motor series here. Do not apply its ratings to the listed 6000RPM-series motor, even when output speeds overlap.