Shaft to Bore Speed Reducers

Click image to enlarge

Ondrives.US is an industry leading designer and manufacturer of worm and wheel gearboxes. Our P Series and PA Series worm gear reducers deliver exceptional performance and reliability in a wide range of applications.

Order the Ondrives.US P Series or PA Series small worm gearboxes your project requires, request a quote, or contact us for more information.

Precision Worm Wheel Gear Reducers

Ondrives.US offers worm and wheel gear reducers in a variety of ratios and configurations to meet your unique requirements. These compact worm gear reduction boxes are manufactured from top quality materials and engineered for high performance in demanding applications.

P and PA series small worm gearboxes are designed for various shaft input sizes and torque ratings. Engineered for ≤30 arc minutes of backlash or better, they are an effective power transfer solution.

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


Shaft to Bore Speed Reducers

  • High-efficiency gear reducers (as high as 90% at 1,000 RPM)
  • Standard ratios from 5:1 to 120:1
  • ≤30 arc minutes of backlash or less
  • Single- or double-ended output shafts
  • Durable construction and components
  • Solid aluminum housings
  • Greased for life
  • Ball bearings on input and output
  • Custom gear reducers available

P80 Worm Wheel Drives

  • Precision crossed roller output; tapered roller input
  • Right angle shaft output
  • Solid aluminum casing, aluminum bronze wheel, HRC-50 induction-hardened steel worm teeth
  • Low backlash (≈6 arc minutes)
  • 50:1 ratio
  • ≈62% efficiency at 1,000 RPM
  • Grease-filled gearbox for minimal maintenance

Order the worm gear reduction boxes or worm wheel drives you need, request a quote, or contact us for more information.

© Ondrives.US Corp.
216 North Main Street
Freeport, New York 11520

Phone: 888 260-7466