High Torque 130 Motor with 20mm Gearbox, 3V/14V and 62.5–390 Gear Ratios

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High Torque 130 Motor With 20 mm Gearbox

The GM20-130SH series is a high torque 130 motor configuration that combines a 130 brushed motor with a 20 mm diameter reduction gearbox. The geared structure converts the relatively high rotational speed of the 130SH DC motor into lower output speed and increased shaft torque, providing a practical drive source for mechanisms that require controlled motion, moderate installation dimensions, and multiple reduction options.

GM20-130SH High Torque 130 Motor Video

The video provides a direct view of the GM20-130SH 130 dc gear motor configuration, including the 20 mm gearbox, motor body, output shaft, and overall mechanical form. It can be used together with the dimensional drawing and performance tables below when evaluating installation space and selecting a suitable reduction ratio.

130 DC Gear Motor Performance Characteristics

Two motor configurations are available within the performance data below. Both use reduction ratios from 62.5:1 to 390:1, allowing engineers to select an operating point based on required output speed and torque. The KC-GM20-130SH-17119 configuration is suited to lower output speeds, while KC-GM20-130SH-11285 provides higher speed capability across the same gearbox ratios. This makes the series suitable when a 130 dc gear motor must be matched to different mechanical loads without changing the basic gearbox envelope.

GM20-130SH Mechanical Specifications

The dimensional configuration uses a 20 mm motor body with a 20.4 mm gearbox diameter and a 4 mm output shaft. This geometry is relevant when evaluating a 20mm 130 dc gear motor for brackets, drive couplings, small transmission assemblies, or OEM equipment. The mounting pattern and shaft references below should be used when checking mechanical integration.

20 mm Gearbox Dimensions And Mounting Details

Engineering Selection Considerations

When selecting a 130 motor with gearbox, the reduction ratio should be evaluated together with rated speed rather than from stall torque alone. Increasing the ratio generally reduces output speed while increasing available torque, but the load, duty cycle, gearbox efficiency, and required service life should remain part of the design calculation. The supplied tables therefore provide practical comparison points rather than a single operating recommendation.

The GM20 architecture also provides an alternative to using a bare 130sh dc motor where direct motor speed is too high for the mechanism. For equipment designed around a 130 size dc motor or 130 size brushed motor, engineers should verify the additional gearbox length, shaft geometry, mounting-hole position, and required output torque before finalizing the assembly.

Performance Advantages

• Reduction ratios from 62.5:1 to 390:1 support different output-speed and torque requirements within the same GM20 gearbox platform.
• Rated torque reaches 2.340 kg·cm, while the KC-GM20-130SH-11285 configuration reaches a listed stalling torque of 12.209 kg·cm at 390:1.
• The 20 mm-class gearbox provides defined shaft and mounting dimensions for precise mechanical integration.
• Multiple motor configurations allow the required speed range to be selected without changing the fundamental gearbox structure.
• Custom shaft length and motor parameters allow the drive specification to be adapted to OEM mechanism requirements.