15 different small worm gearbox ratios ranging from 3.5:1 to 100:1
Max. input speed: 1800 RPM
Result torque up to 190 in-lbs
Light-weight Nylon housing
Lubricated for life
Shaft insight to shaft result 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 just about any of our hollow bore gearboxes. We bring P Series gearbox output shafts designed particularly for our worm equipment reduction boxes.
Our inventory also includes a broad selection of misalignment shaft couplings in inch and metric bore sizes for your worm gearbox app. Other in . and metric precision floor shafts can be found from stock.
The Ever-Power Advantage for Worm Drive Gearboxes
Ever-Power has 30-in addition years’ experience in production gearboxes and other precision drive elements. Features and advantages of our worm gears consist of:
High efficiency right angle worm gear reducers
Backlash: 4, 8, or 30 arc-min
Single shaft, double shaft, or flange install input
NEMA mount flanges available
Rugged worm equipment reducers built for reliability in challenging applications
Permanently lubricated
Gearboxes are conservatively rated
Obtainable with ingress protection to IP65 or higher
Solid aluminum housings
Ball bearings upon input and output
Custom 90-degree gearboxes are available to your specifications
Demand a Quote for Precision Worm Gearboxes
We provide reliable, high performance worm gearboxes for most motion transfer applications. Purchase today, demand a quote, or get in touch with Ever-Power for the worm gear reducer you need.
See individual product listings for additional information and specifications.
Worm Drive Gearboxes for High Torque Applications
Our worm gearboxes are greased forever 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, look at our Buyer’s Guide to see ten essential points to consider whenever choosing a gearbox. Another useful reference, Inertia and the Use of Inertia Numbers, offers a method for dealing with inertia in worm gear selection.
Shaft to Bore Wormwheel Gearboxes
Shaft to bore worm gearboxes are engineered for ≤30 arc mins 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
Result torque up to at least one 1,400 lbf.in.
Rated for input boosts to 3,000 RPM
Backlash only 4 arc minutes
Flange Wormwheel Gearboxes
Flange gear decrease boxes have a concise footprint and generate an output at 90° from the input. Available in a variety 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 1,400 lbf.in.
Rated for input boosts to 3,000 RPM
Backlash only 4 arc minutes
NEMA Flange Worm Drive Gearboxes
NEMA flange worm gearboxes include a compact aluminum body with a 90° result angle and are offered with reduction ratios ranging from 5:1 to 120:1. Optional NEMA 17 and NEMA 23 inputs can be found, in addition to single-output or double-output shafts. Imperial and metric sizes.
High efficiency: up to 90% at 1,000 RPM
Output torque 
up to 1 1,400 lbf.in.
Rated for input boosts to 3,000 RPM
Backlash only 4 arc minutes
Miniature Wormwheel Gearboxes
Miniature worm gear decrease boxes are greased forever 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°
Result torque up to 3.95 lbf.in.
Framework sizes 14mm cubed and 20mm cubed
High Ratio Decrease Worm Gearboxes
High reduction worm gearboxes feature parallel insight and output shafts and so are essentially two reduction gearboxes in one unit. Dual ball bearings and long term lubrication offer years of dependable high cycle performance. Select from three framework sizes with ratios which range from 25:1 to 900:1. Metric sizes just.
Input speeds: up to 3,000 RPM
Torque ideals: 2.2Nm to 34Nm
Low backlash: ≈2°
Compact Wormwheel Gearboxes
Our most compact worm drive gearbox is designed to deal with demanding power transfer applications and is offered with a 5:1, 10:1 or 20:1 gear ratio. Features consist of machined aluminium housing and hardened steel gears. Imperial sizes just.
High efficiency: up to 90% at 1,000 RPM
Max. input speed: 3,000 RPM
Low backlash: maximum ≈2°
Result torque up to 3.95 lbf.in
Lightweight – approximately 4oz
Low profile – only one 1.09 in high.
Economic Molded Glass Filled Casing Speed Reducers
Assembled in a Glass filled Nylon Housing are financial yet deliver superior performance.