shop/ jsumo/ jsumo core 6v 400 rpm

High-Torque 6V Gear Motor for Mini Sumo and Compact Robot Drive Builds

The JSumo Core DC Motor 6V 400 RPM is an original JSumo mini gearmotor made for compact robots that need a better balance of torque and speed. It is a strong choice for mini sumo robots, small push robots, and other drive systems where traction and control matter.

JSumo lists this motor as a proven choice for mini sumo robots. It uses a 48:1 gear ratio, a 3 mm D-shaft, and a compact metal gearmotor format that pairs well with grippy robot wheels and compact controller boards.

Original JSumo product: We list this motor as a distributor, so the product title now starts with JSumo for clearer brand matching.

Why you'll love it

  • Balanced speed and torque: 400 RPM at 6V for controlled robot drive
  • Mini sumo friendly: Designed for high-torque compact robots
  • 3 mm D-shaft: Works with many JSumo wheel options
  • Wide voltage headroom: JSumo notes it can be over-volted for short runs in advanced builds
  • Compact size: Easier fit inside small robot chassis

Technical specifications

Product JSumo Core DC Motor 6V 400 RPM
Type Mini gear DC motor
Nominal voltage 6V
Power 4.2W
Speed 400 RPM
Gear ratio 48:1
Continuous torque @ 6V 1.2 kg-cm
Stall torque @ 6V 3.9 kg-cm
No-load current @ 6V 120 mA
Stall current @ 6V 3200 mA
Dimensions 47 × 15 × 10 mm
Mass 21 g
Shaft type D type
Shaft diameter 3 mm
Shaft length 8 mm

Related JSumo products to compare or pair with this motor

Product Role Why it matches
JSumo Genesis Robot Controller Mainboard Robot controller Arduino Nano based all-in-one board for driving two motors in compact robots.
JSumo Shogun Mini Sumo Robot Kit Mini sumo kit Uses Core 6V 400 RPM motors as a proven competition-ready drive choice.
JSumo SLT20P Silicone Wheel Pair Wheel option High-traction wheel set often paired with compact gear motors in mini sumo builds.

What's in the box

1 × JSumo Core DC Motor 6V 400 RPM

Frequently Asked Questions

Is this motor good for mini sumo? Yes. JSumo lists it as suitable for mini sumo robots and other torque-demanding robots.
What shaft size does it use? It uses a 3 mm D-shaft.
What is the gear ratio? The listed gear ratio is 48:1.
Can it handle more than 6V? JSumo notes that advanced builders may run higher voltages for short periods, but the nominal rating is 6V.

Build with this board

// from learn.circuit.rocks

Notes from the bench

// from blog.circuit.rocks

Ask the community

// from forum.circuit.rocks