15 different ratios which range 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 insight to shaft output or shaft input 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 small worm gearbox equipment reduction boxes.
Our inventory also contains a broad collection of misalignment shaft couplings in ” and metric bore sizes for your worm gearbox software. Other in . and metric precision floor shafts are available from stock.
The Ever-Power Advantage for Worm Drive Gearboxes
Ever-Power has 30-plus years’ experience in production gearboxes and other precision drive elements. Features and benefits 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 mount input
NEMA mount flanges available
Rugged worm equipment reducers built for dependability in challenging applications
Permanently lubricated
Gearboxes are conservatively rated
Offered with ingress protection to IP65 or higher
Solid aluminum housings
Ball bearings upon input and output
Custom 90-level gearboxes can be found to your specifications
Demand a Quote for Precision Worm Gearboxes
We provide reliable, powerful worm gearboxes for every motion transfer applications. Order today, request a quote, or get in touch with Ever-Power for the worm gear reducer you need.
See individual item listings for more information and specifications.
Worm Drive Gearboxes for High Torque Applications
Our worm gearboxes are greased for life and feature solid aluminium housings and ball bearings on insight and output. If you’re uncertain which gear reduction package is best suited to your application, look at our Buyer’s Guideline to see ten important points to consider when choosing a gearbox. Another useful reference, Inertia and the Use of 
Inertia Statistics, offers a formula for dealing with inertia in worm equipment selection.
Shaft to Bore Wormwheel Gearboxes
Shaft to bore worm gearboxes are engineered for ≤30 arc moments of backlash. Obtainable ratios range from 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
Result 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. Obtainable 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 at least one 1,400 lbf.in.
Rated for input boosts to 3,000 RPM
Backlash as low as 4 arc minutes
NEMA Flange Worm Drive Gearboxes
NEMA flange worm gearboxes include a compact aluminum frame with a 90° result angle and are offered with reduction ratios which range from 5:1 to 120:1. Optional NEMA 17 and NEMA 23 inputs are available, and also single-output or double-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 speeds up to 3,000 RPM
Backlash only 4 arc minutes
Miniature Wormwheel Gearboxes
Miniature worm gear decrease boxes are greased for life and offered in metric sizes with ratios which range 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 Decrease 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 reliable high cycle performance. Select from three framework sizes with ratios ranging from 25:1 to 900:1. Metric sizes just.
Insight speeds: up to 3,000 RPM
Torque ideals: 2.2Nm to 34Nm
Low backlash: ≈2°
Compact Wormwheel Gearboxes
Our most small worm drive gearbox is made to manage demanding power transfer applications and is available with a 5:1, 10:1 or 20:1 gear ratio. Features include 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 Casing are economic yet deliver superior functionality.