Economical motorized gearbox with in-line motor and mounting holes. Ratio 1:120, 100 rpm. Shaft size (oval): 13/64 x 9/64 in. 3 V DC (6 V DC maximum).
1:48. Double axis. 3-6 V DC. Works with Robot Wheels Set (390464).
Ideal for design technology, this gearbox can be expanded by adding gears up to 6 gear ratios. It has metal side plate. Output shaft 4mm. Kit.
This gearbox system is easy to assemble and take apart. Includes a motor holder and gears. Ideal for transportation projects. Specs: 1 - 6 V DC, 0.1 - 1.0 A (load dependent). 2mm dia. shaft.
Larger gear is easier to mash. Use with solar cell design or battery car models. 6-12V DC. 3mm dia. shaft.
Useful for robotic activities with 15:1 gear ratio. 6-12V. No load rpm is 300. Rated current is ≥125 mA. Torque is 0.4kg-cm Max.
Features 100:1 Gear ratio. Use for robotic activities. 6-12V DC. Shaft is 0.15 in. dia. x 3/8 in. L. PLEASE NOTE: Model may change depending on availability of stock.
Eight different transmission ratios, from 5:1 up to 1125:1. Includes RC20 motor (that runs on 1.5-4.5 V DC) and instructions. Output shaft is 3 mm in diameter.
Special attachment to fit rectangle end and screw to attach wheel to motor. Includes: aluminum bracket, screws, gearbox,  half wheels, tube, screweye, snap rod, acrylic hub and rubber band.
An extremely useful device that can power a shaft in a horizontal or vertical position relative to the motor. Various arrangements of 24-tooth and 26-tooth gears produces gear ratios of 101:1, 269:1, 719:1.
We provide the motor, two sets of gears, metal shafts, gearbox, and other accessories in this kit. Use a different gear setting and you will have a different speed. WARNING: Cancer and Reproductive Harm - www.p65warnings.ca.gov.
This ready-to-assemble gearbox uses two electric motors to independently control each of the output shafts. Two gear ratios, 207:1 or 58:1 can be selected. Used for SUMO Car" and other robotics projects.
A highly versatile system for reduction of high RPM electric motors to high-torque low RPM applications. Combine gearboxes in various ways for 8 different gear ratios (4:1, 5:1, 16:1, 20:1, 25:1, 80:1, 100:1, 400:1).
Can produce extremely low speeds of rotation and is used for gear reduction. Two gear ratios can be selected (216.1:1 and 336.1:1). Included motor operates on 3-4.5 volts.