Rapid-Worm-Drive-Gearbox-with-Motor-Rapid-37-0310-p-Buy-Worm-Drive-Gearbox-with-Motor-incorporating-the-following-features-1-to-6V-voltage-rating-17100-rpm-no-load-speed-220g-cm-stall-torque-3mm-shaft-diameter-60mm-long-35mm-wide-40mm-high-a-robust-worm-drive-gearbox-powered-by-an-MM28-motor-included-most-suitable-for-applications-where-an-easy-to-fit-high-torque-output-is-required-nylon-housing-and-gear-requires-light-oil-or-silicon-grease-lubrication-ideal-for-student-base