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Silver cylindrical gear motor with centered D-shaped output shaft

Greartisan 12V 100RPM Gear Motor 37mm Centric Shaft

SKU CH-1HG4-3JV9P

A 37 mm gear motor delivering 100 RPM at 12 V with 4.5 kg·cm torque and a D-shaped output shaft for vending, camera and automation projects

  • Size or dimensions3.7 cm × 3.7 cm × 3.7 cm
  • Product color100 RPM
  • Product weight0.21 kg
  • 12V operation suits battery-powered projects
  • 100RPM no-load speed for steady motion
  • 5Kg.cm rated torque moves heavy loads
  • All-metal gears resist wear and heat
  • D-shaped 6x14mm shaft prevents slippage

Motor for low-speed high-torque projects

This 12 V DC gear motor delivers 100 RPM no-load speed with a rated torque of 4.5 kg·cm. It suits makers building vending equipment, pan-tilt cameras, automatic doors or similar devices that need slow, strong rotation. The all-metal gearbox and pure-copper rotor are designed for durability under continuous load.

37 mm gearbox diameter fixes mounting footprint

The gearbox measures 37 mm in diameter and 24.5 mm in length, while the motor body is 36.2 mm by 33.3 mm. These dimensions decide whether the unit fits your chassis or bracket. The D-shaped output shaft is 6 mm across the flats and 14 mm long, so couplers or wheels must match that profile.

Simple two-wire hookup with polarity care

Connect the red lead to positive and black to negative; reversing them swaps rotation direction. The motor draws 1.1 A at rated load, so ensure your supply and wiring handle that current. Avoid stalling or overloading beyond the rated torque, and keep operating temperature between 0 and 40 °C to prevent premature wear.

How it compares

Measured against everything we stock in DC Motor Kits & Gear Sets, at today’s prices. Recalculated every night.

Price $23.99
Pricier than about 81% of the 12 comparable items (median $19.49).

Specifications

Product
Brand nameGreartisan
Model nameGear
Model numberGreartisan
Product color100 RPM
Size & build
Size or dimensions3.7 cm × 3.7 cm × 3.7 cm
Product weight0.21 kg

Questions about this item

What does the 100 RPM no-load speed mean when the motor is installed in a machine?

Under a 12 V supply the output shaft turns at roughly 100 RPM with no load; applying the rated 4.5 kg·cm torque will reduce the speed somewhat, and the 1:31.6 reduction ratio multiplies motor torque while dividing motor speed by that factor.

What does the 12 V DC rating cap in practice?

The motor is designed for a 12 V DC supply and draws about 1.1 A at rated load; exceeding this voltage or stalling the shaft can overheat the windings and shorten life.

What mounting holes and shaft dimensions do I need to fit this gearbox?

The gearbox body is 37 mm in diameter by 24.5 mm long and uses M3 mounting holes; the D-shaped output shaft measures 6 mm across the flats by 14 mm long.

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