Steven Levy Enterprises buys and sells new, unused, and used surplus gearboxes and speed reducers. Browse our inventory of suprlus gearboxes and speed reducers available for sale. An industrial gearbox transmits mechanical energy to an output device in order to maneuver speed and torque, and convert it into a usable form. Speed reducers are mechanical devices sed to multiply the amount of torque generated by an input power source to increase the amount of usable work or reduce the input power source speed to achieve desired output speeds. Tell us what surplus gearboxes and speed reducers you have for sale or call us at 713-910-4337.