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Plastic Gearmotors offer a great light weight solution for your smaller robot projects.
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Solarbotics GM3 224 to 1 Gear Motor 90 deg. Output
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Solarbotics GM3 224 to 1 Gear Motor 90 deg. Output
Item Name:
Solarbotics GM3 224 to 1 Gear Motor 90 deg. Output
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This 224:1 gearmotor (gearbox with brushed DC motor) is a great low-cost alternative to modified hobby servos or Tamiya gearboxes. The low-current motor and the compact size makes this unit an attractive choice for small robot designs.

This gearmotor comes pre-assembled, with the gears fully enclosed. There are built-in mounting holes, and the output shaft is 7mm in diameter with two sides flattened (the “D” output is not meant to be used). A built-in safety clutch engages at approximately 60 oz-in.

Note: Although the product picture shows two gearmotors, this product is for a single motor.

Features and Specifications:

  • Description: 90-degree
  • Gear ratio: 224:1
  • 3 V Operation:
    • No-load RPM: ~ 24
    • No-load current: ~ 40 mA
    • Stall current: ~ 400 mA
    • Stall torque: ~ 49 oz-in
  • 6 V Operation:
    • No-load RPM: ~ 46
    • No-load current: ~ 50 mA
    • Stall current: ~ 733 mA
    • Stall torque: ~ 57 oz-in
  • Weight: 31 g



This 224:1 gearmotor (gearbox with brushed DC motor) has a low-current motor and provides power and speed that is comparable to an RC servo at a fraction of the cost.
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