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Miniature DC gearmotor series

Manufacturer catalogue image · Series illustration

DC motors

Miniature DC gearmotor series

GPG Motor logoGPG MotorView manufacturer →
Drive Type
DC motor with reduction gearbox
Power
Confirm configuration
Voltage
Confirm supply
Speed
Model dependent

Catalogue series · Exact configuration and availability confirmed by the manufacturer.

Select the DC winding before sizing the controller or gearbox

GPG’s miniature DC catalogue contains separate 12 V and 24 V windings, several motor speeds and optional brake modes. Its current and millinewton-metre figures describe the motor-side selection; they must not be mistaken for controller peak ratings or the geared output shaft’s torque.

The same nominal output power has different supply-current entries

These pairs come from the listed 1500 rpm rows. Each voltage is a separate catalogue winding choice, not permission to switch one motor between 12 and 24 V. Motor-family labels below follow the grouped table entries; confirm the full winding and shaft suffix in the order.

Motor group / output12 V current24 V currentMotor torque
GDM69 / 25 W 3.8 A 1.75 A 159.08 mN·m
GDM69-08 / 40 W 6.1 A 2.78 A 254.6 mN·m
GDM80 / 60 W 9.1 A 4.2 A 382 mN·m

Choose the electrical behaviour needed by the machine

Size for the start as well as the running point

The 40 W, 24 V entry lists 2.78 A, but that is not a published stall or acceleration-current limit. Supply the controller vendor with the selected winding, load inertia, starting load and reversal frequency. Request the motor’s peak-current information and agree current limiting and protection; do not size a battery fuse or drive solely by the tabulated running-current value.

Choose a motor speed, then specify the geared output separately

For the GDM69 40 W group, the table lists 254.6 mN·m at 1500 rpm, 212 mN·m at 1800 rpm and 173.6 mN·m at 2200 rpm. The first figure is 0.2546 N·m, not 254.6 N·m. A separate 3200 rpm row is labelled for a plain shaft. None of these is a universal low-speed output rating; state the gear ratio, required output speed and continuous/peak load so the chosen gearhead can be checked.

M and M2 are different brake requests

The accessory key identifies M as electromagnetic braking on power-off and M2 as electromagnetic braking on power-on. Specify the intended stopping and holding sequence rather than ordering “with brake” alone. Ask for the selected brake’s coil supply, torque and duty; the accessory code does not provide those ratings or establish a safety-rated holding function.

A ratio change can also change the miniature assembly’s length

The 70 mm gearhead drawing has two length groups

For the drawn GDM69/105-07SC assembly, ratios 1:3–1:20 use L2 = 32 mm and L3 = 137 mm. Ratios 1:25–1:300 use L2 = 42 mm and L3 = 147 mm. The motor-side L1 stays 105 mm. Leave room for that 10 mm change when the gearbox is located inside a housing; L3 is the labelled drawing span, not a substitute for every external clearance.

Retain both the gearhead and motor interface in a retrofit

The same 70 mm gearhead drawing shows a 10 h7 output shaft and 25 mm extension. The motor drawings separately distinguish SA plain-shaft and SC geared-shaft arrangements. Send the existing front mounting pattern, output coupling dimensions and full motor/gearhead codes with the inquiry, so a matching 70 mm face is not mistaken for an interchangeable motor pinion or winding.

CATALOGUE OVERVIEW

About this motor series

GPG miniature DC gearmotors use selectable DC windings, motor speeds and gearheads. The attached catalogue includes paired voltage/current data, motor torque in mN·m, SA/SC shaft arrangements and M/M2 brake options. Use the examples below to separate electrical selection from geared output performance and mounting space.

Model / series reference: Miniature DC geared

Published specifications

Specifications describe a series range; confirm which ratings apply together to the quoted model.

Drive Type
DC motor with reduction gearbox
Power
Confirm configuration
Voltage
Confirm supply
Speed
Model dependent
Selection
Output torque, speed, ratio and duty
Catalogue Type
Product series

Confirm mounting and shaft dimensions against the drawing for the quoted configuration.

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