Gearboxes, Speed Reducers, & Gear Reducers

Gearboxes — New & Used

Gearboxes (also called speed reducers or gear reducers) are essential components that control torque and rotational speed in mechanical systems. Designed to handle high loads and provide precise motion transmission, they play a key role in converting motor power into usable mechanical output. Available in worm, helical, planetary, and right-angle configurations, they’re used across industrial, automation, and OEM applications.

At Surplus Select, we carry a changing selection of new and used OEM gearboxes from trusted manufacturers including SEW-Eurodrive, Baldor-Dodge, Nord, Sumitomo, Boston Gear, and Winsmith. Our inventory updates daily, giving you access to premium industrial reducers at surplus pricing for MRO, automation, and machinery rebuilds.

Price Match — We match any authorized distributor on identical in-stock parts, so you can source parts at surplus pricing with distributor-level assurance.

Trade-In Credit — Have quality new surplus items? Trade them in for store credit toward the parts you actually need.

Fast U.S. Shipping — Most orders ship same or next business day from our U.S. warehouse to keep your line running.

Find Your Gearbox Fast (Search-First)

Search your part number (e.g., Dodge TXT315, Nord SK01, Boston F713).
No PN? Try specs: “40:1 worm gearbox” or “1 HP right-angle reducer”.
Need a specific OEM? Add the brand (e.g., SEW-Eurodrive gearbox or Sumitomo Cyclo reducer).

Applications & Use Cases

Conveyors & material handling: Torque reduction and controlled drive output for motion systems.
Mixers, agitators & pumps: Reliable power transmission for rotating industrial equipment.
Automation & robotics: Precise motion control for positioning and repeatability.
Machinery & OEM builds: Powertrain integration for industrial machinery and fabrication equipment.
MRO & retrofits: Replacement reducers and drives for repair and upgrade projects.

Why Buy Gearboxes from Surplus Select

New & Used Options: Industrial gear reducers and speed reducers at surplus pricing.
Trusted Brands: SEW-Eurodrive, Dodge, Nord, Boston Gear, and Sumitomo.
Wide Selection: Worm, helical, planetary, and right-angle gearbox types available.
Fast Shipping: Most orders ship same or next business day across the U.S.