small worm gearbox

15 different ratios which range from 3.5:1 to 100:1
Max. input speed: 1800 RPM
Result torque up to 190 in-lbs
Light small worm gearbox weight Nylon housing
Lubricated for life
Shaft input to shaft result or shaft insight to hollow bore output
Input & Result Shafts for Worm Gearboxes
Input shafts and result shafts with drive keys and retainer bands could be supplied to your specifications for any of our hollow bore gearboxes. We bring P Series gearbox output shafts designed particularly for our worm gear reduction boxes.

Our inventory also includes a broad collection of misalignment shaft couplings in inch and metric bore sizes for your worm gearbox program. Other in . and metric precision floor shafts can be found from stock.

The Ever-Power Benefit for Worm Drive Gearboxes
Ever-Power has 30-plus years’ experience in production gearboxes and other precision drive parts. Features and benefits of our worm gears consist of:
High efficiency correct 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 gear reducers built for reliability in challenging applications
Permanently lubricated
Gearboxes are conservatively rated
Offered with ingress protection to IP65 or more
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 almost all motion transfer applications. Order today, demand a quote, or contact Ever-Power for the worm equipment reducer you need.

See individual item listings for more information and specifications.
Worm Drive Gearboxes for High Torque Applications
Our worm gearboxes are greased forever and feature solid light weight aluminum housings and ball bearings on input and result. If you’re uncertain which gear reduction container is best suited to your application, view our Buyer’s Guidebook to see ten essential points to consider when choosing a gearbox. Another useful reference, Inertia and the Use of Inertia Numbers, offers a formulation 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. Obtainable ratios range between 5:1 to 120:1 with single-finished or double-ended output shafts. Imperial and metric sizes.
High efficiency: up to 90% at 1,000 RPM
Output torque up to at least one 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 decrease 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 which range from 5:1 to 120:1. 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
NEMA Flange Worm Drive Gearboxes
NEMA flange worm gearboxes include a compact aluminum frame with a 90° output angle and are offered with reduction ratios which range from 5:1 to 120:1. Optional NEMA 17 and NEMA 23 inputs can be found, along with 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 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°
Result torque up to 3.95 lbf.in.
Body sizes 14mm cubed and 20mm cubed
High Ratio Reduction Worm Gearboxes
High reduction worm gearboxes feature parallel input and output shafts and so are essentially two reduction gearboxes in a single device. Dual ball bearings and permanent lubrication offer years of dependable high cycle performance. Pick 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 small worm drive gearbox is designed to manage demanding power transfer applications and is obtainable with a 5:1, 10:1 or 20:1 equipment ratio. Features consist of machined aluminum 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 Housing Speed Reducers
Assembled in a Glass filled Nylon Casing are financial yet deliver superior overall performance.