Combo GM3 Gear Motor 90 degree Shaft wheel powerful 3.5kg cm 224:1 Arduino projects robots NEW
This 224:1 gearmotor is very comparable to a hobby servo for power
7mm output shaft with double-flat outputs
Secondary output shaft (D) for encoders (not meant for rotational loads)
Built-in safety ratchet clutch set for 60 in*oz torque (easily modified for full “locked-up” operation)
Built in mounting holes
30.5 grams (1.08oz)
3-6VDC nominal operation
48.6 in*oz torque (3.5 Kg cm)
40mA free-running current
400mA stall current
These Solarbotics GM3 – Gear Motors are very comparable to a hobby servo for power, at a fraction of the cost! Fit perfectly with GMPW and GMW plastic wheels.
This gear motor rotate 360 degrees every 1.6 seconds (just a hair slower than a servo), at 5V, drawing 600mA at stall (free running at 52mA). With a 7mm double-flat output shaft (avoid using the “D” output – it’s not meant to take rotational load), and a built-in clutch (limiting at 60 in.oz, but easily “locked”), and built-in mounting screw holes, you can see why we like these motors!
Based on the original design by Mark Tilden for use in the B.I.O.-Bugs (GM3 are now used for use in the Robosapien), these motors are the next generation with a variety of improvements such as dual output shafts and a lower current motor.
GM3 – Gear Motors are compatible with the Solarbotics Wheel Watcher Rotation Encoder. Use it if you need to control a robot for dead reckoning, tracking odometry (distance traveled), stalled motor, or closing the feedback loop for position/velocity/acceleration.
These new hard plastic wheels are specially designed for our GM2, GM3, GM8, GM9 and GM17 gear motor output shafts. Although usable as wheels, we often use these as mounts for legs and other mechanisms as they have convenient mounting holes that match our leg mounting pads.
They are 30mm in diameter, 7mm wide, and the double-flat slot fits onto the gear motor’s shaft snugly.