Worm Gearbox

  • gearboxes-p-series

Wormwheel gearboxes go by several names, including 90-degree gearboxes, right angle gearboxes, speed reducers, worm gear reducers and worm drive gearboxes. Gear reduction boxes feature a gear arrangement in which a gear in the form of a screw, also known as a worm, meshes with a worm gear. These gears are typically made from bronze and the worms are steel or stainless steel.
 
While worm gears are similar to a spur gear, the worm gearboxes are significantly smaller than other gear reduction boxes. A primary benefit of worm gear reducers is that they produce an output that is 90° from the input and can be used to transmit higher torque or reduce rotational speed. Most often, a worm gearbox has right hand threads; to change the direction of the output, a left-hand thread worm gearbox is required.
 


Additional benefits of worm drive gearboxes include:

  • High reduction ratios
  • High torque multiplication
  • Quiet operation
  • Absorbs shock loads

Wormwheel Gear Reduction Boxes Provide Effective Speed Reduction in A Compact Design

Even though gear reduction boxes are compact, they deliver high power performance in a variety of operating scenarios. Worm drive gearboxes are typically used in applications requiring large speed reductions in a small space. Examples of common motion control applications include:
  • Tuning instruments
  • Elevators
  • Conveyor belts
  • Automated gates

Precision Manufactured Worm Drive Gearboxes

Ondrives.US designs and manufactures precision right angle worm gearbox systems in ten frames sizes in shaft to borehollow bore flange mountNEMA flangehigh ratiocompact, and miniature and Molded Glass Filled Housing configurations. Custom worm gearbox systems are also available. Contact our application engineers to discuss your custom requirements.
 
Output torques as high as 420Nm are available. Most of our worm gear reducers are built with ≤30 arc-minutes backlash and can be supplied with as low as ≤4 arc-minutes backlash. 
NOTE: Worm gearboxes SHOULD NOT be used as speed increasers.

Order today or request a quote on the worm gearbox you need. Contact Ondrives.US to learn more. 

See individual product listings for additional information and specifications. 

Worm Drive Gearboxes for High Torque Applications  

Our worm gearboxes are greased for life and feature solid aluminum housings and ball bearings on input and output. If you’re not sure which gear reduction box is best suited to your application, view our Buyer’s Guide to see ten important points to consider when choosing a gearbox. Another valuable reference, Inertia and the Use of Inertia Figures, offers a formula for dealing with inertia in worm gear selection.

Shaft to Bore Wormwheel Gearboxes

Shaft to bore worm gearboxes are engineered for ≤30 arc minutes of backlash.  Available ratios range from 5:1 to 120:1 with single-ended or double-ended output shafts.  Imperial and metric sizes.
  • High efficiency: up to 90% at 1,000 RPM
  • Output torque up to 1,400 lbf.in.
  • Rated for input speeds up to 3,000 RPM 
  • Backlash as low as 4 arc minutes

Flange Wormwheel Gearboxes

Flange gear reduction boxes have a compact footprint and produce an output at 90° from the input. Available in a range of sizes with single-ended or double-ended output shafts, and with standard ratios ranging from 5:1 to 120:1. Imperial and metric sizes.
  • High efficiency: up to 90% at 1,000 RPM
  • Output torque up to 1,400 lbf.in.
  • Rated for input speeds up to 3,000 RPM 
  • Backlash as low as 4 arc minutes

NEMA Flange Worm Drive Gearboxes

NEMA flange worm gearboxes feature a compact aluminum frame with a 90° output angle and are offered with reduction ratios ranging from 5:1 to 120:1. Optional NEMA 17 and NEMA 23 inputs are available, as well as single-output or double-output shafts.  Imperial and metric sizes.
  • High efficiency: up to 90% at 1,000 RPM
  • Output torque up to 1,400 lbf.in.
  • Rated for input speeds up to 3,000 RPM 
  • Backlash as low as 4 arc minutes

Miniature Wormwheel Gearboxes

Miniature worm gear reduction boxes are greased for life and offered in metric sizes with ratios ranging from 1:1 to 30:1. Available in 3.00mm or 4.00mm shaft output options. Metric sizes only.
  • High efficiency: up to 82% at 1,000 RPM
  • Max. Output: up to 4,000 RPM
  • Low backlash: ≈2°
  • Output torque up to 3.95 lbf.in.
  • Frame sizes 14mm cubed and 20mm cubed

High Ratio Reduction Worm Gearboxes

High reduction worm gearboxes feature parallel input and output shafts and are essentially two reduction gearboxes in a single unit. Dual ball bearings and permanent lubrication provide years of dependable high cycle performance. Select from three frame sizes with ratios ranging from 25:1 to 900:1. Metric sizes only.  
  • Input speeds: up to 3,000 RPM
  • Torque values: 2.2Nm to 34Nm
  • Low backlash: ≈2°

Compact Wormwheel Gearboxes

Our most compact worm drive gearbox is designed to handle demanding power transfer applications and is available with a 5:1, 10:1 or 20:1 gear ratio. Features include machined aluminum housing and hardened steel gears. Imperial sizes only.
  • High efficiency: up to 90% at 1,000 RPM
  • Max. input speed: 3,000 RPM
  • Low backlash: maximum ≈2°
  • Output torque up to 3.95 lbf.in
  • Lightweight – approximately 4oz
  • Low profile – only 1.09 in high.

Economic Molded Glass Filled Housing Speed Reducers

Assembled in a Glass filled Nylon Housing are economic yet deliver superior performance.

  • 15 different ratios ranging from 3.5:1 to 100:1
  • Max. input speed: 1800 RPM
  • Output torque up to 190 in-lbs
  • Light weight Nylon housing
  • Lubricated for life
  • Shaft input to shaft output or shaft input to hollow bore output

Input & Output Shafts for Worm Gearboxes

Input shafts and output shafts with drive keys and retainer rings can be supplied to your specifications for any of our hollow bore gearboxes. We carry P Series gearbox output shafts designed specifically for our worm gear reduction boxes.
 
Our inventory also includes a broad selection of misalignment shaft couplings in inch and metric bore sizes for your worm gearbox application. Other inch and metric precision ground shafts are available from stock.
 

The Ondrives.US Advantage for Worm Drive Gearboxes

Ondrives.US has 30-plus years’ experience in manufacturing gearboxes and other precision drive components. Features and advantages of our worm gears include:
  • High efficiency right angle worm gear reducers
  • Backlash: 4, 8, or 30 arc-min
  • Single shaft, double shaft, or flange mount input
  • NEMA mount flanges available
  • Rugged worm gear reducers built for reliability in challenging applications
  • Permanently lubricated
  • Gearboxes are conservatively rated
  • Available with ingress protection to IP65 or higher
  • Solid aluminum housings
  • Ball bearings on input and output
  • Custom 90-degree gearboxes are available to your specifications

Request a Quote for Precision Worm Gearboxes

We provide reliable, high performance worm gearboxes for all motion transfer applications. Order today,  request a quote, or contact Ondrives.US for the worm gear reducer you need.

 

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

Phone: 888 260-7466