JGB37 520 12V DC Gear Motor

The JGB37-520 is a compact 12V DC gear motor built for robotics, automation, and mechanical prototyping projects that need reliable, high-torque rotational power. Its gear design provides a strong reduction ratio along with self-locking behavior, meaning the output shaft resists back-driving when the motor is powered off, which is especially useful in load-holding applications like lifts, latches, and rotating fixtures. The all-metal gearbox is built for durability, delivering smooth, low-noise operation even under continuous load.

This motor is available in three speed variants, 50RPM, 100RPM, and 300RPM, so builders can match the motor to their project’s torque-versus-speed requirements. Lower RPM variants suit tasks that demand more torque and finer control, such as slow-moving mechanisms or precision positioning, while the 300RPM variant is better suited to applications needing faster rotational output. It’s a popular choice for smart car platforms, robotic arms, automatic doors and curtains, conveyor mechanisms, and general-purpose DIY engineering builds. With a standard D-shaft output and compact 37mm body, it integrates easily into most existing motor mounts, brackets, and wheel hubs used in maker and robotics projects.

Specification :

• Rated Voltage : 12V DC
• Gear Type : Worm gear, self-locking
• Gearbox Material : Metal
• Motor Diameter : 37mm
• Output Shaft Type : D-shaft
• Output Shaft Diameter : 6mm
• 100 RPM Version:
  • Rated Speed : 107 RPM
  • Torque : 1.2 kg.cm
• 300 RPM Version
  • Rated Speed : 319 RPM
  • Torque : 0.48 kg.cm