Flange Mount

Ondrives.US designs, engineers, and manufactures some of the most reliable and best-performing gearboxes on the market. Our PF and PFA series worm gear speed reducers are available in a range of frame sizes and with output torques up to 420Nm. They offer superior performance in even the most challenging power transfer applications.

Order the Ondrives.US worm gear reducers you need, request a quote, or contact us for more information.

Precision Worm Gear Reducers

These flange gearbox systems produce an output at 90° from the input and are built with compact footprints, making them ideal for a wide range of applications. Single ended or double ended output shafts are available for even greater versatility. Manufactured with durable, high quality materials and sturdy craftsmanship, PF and PFA flange series gear reducers will stand up to even the toughest working conditions.

With a variety of torque values and shaft input sizes available, it’s easy to find the right Ondrives.US worm gear speed reducer for your application. All flange gearbox models provide low backlash (≤30 arc minutes backlash or less) and high efficiency (as much as 90% at 1,000 RPM).

For full specifications and Dimensional Parametric Search, see individual product listings. 


The Ondrives.US Advantage

  • Highly efficient worm wheel gear reducers (up to 90% at 1,000 RPM)
  • Standard ratios from 5:1 to 120:1
  • Solid aluminum housings and steel interior components
  • Single- or double-ended output shafts
  • Low backlash—as low ≤4 arc minutes
  • Greased for life
  • Optional motor inputs available
  • Custom gear reducers available

Order precision flange series gear reducers for your project, request a quote, or contact us for more information.