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 input to shaft output or shaft insight to hollow bore output
Input & Output Shafts for Worm Gearboxes
Input shafts and result shafts with drive keys and retainer bands can be supplied to your specifications for just about any of our hollow bore gearboxes. We carry P Series small worm gearbox gearbox output shafts designed specifically for our worm equipment reduction boxes.
Our inventory also contains a broad selection of misalignment shaft couplings in in . and metric bore sizes for your worm gearbox application. Other ” 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 manufacturing gearboxes and other precision drive parts. Features and advantages of our worm gears include:
High efficiency correct angle worm gear reducers
Backlash: 4, 8, or 30 arc-min
Single shaft, double shaft, or flange attach input
NEMA mount flanges available
Rugged worm gear reducers built for dependability in challenging applications
Permanently lubricated
Gearboxes are conservatively rated
Obtainable with ingress protection to IP65 or higher
Solid aluminum housings
Ball bearings on 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 all motion transfer applications. Purchase today, demand a quote, or get in touch with 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 for life and feature solid light weight aluminum housings and ball bearings on insight and output. If you’re uncertain which gear reduction box is best suited to your application, view our Buyer’s Instruction to see ten important points to consider whenever choosing a gearbox. Another beneficial reference, Inertia and the Use of Inertia Figures, 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 minutes of backlash. Obtainable ratios range between 5:1 to 120:1 with single-ended or double-ended result 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 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 create an output at 90° from the input. Available in a range of sizes with single-ended or double-ended result 
shafts, and with regular 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 as low as 4 arc minutes
NEMA Flange Worm Drive Gearboxes
NEMA flange worm gearboxes include a compact aluminum framework 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 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 speeds up to 3,000 RPM
Backlash as low as 4 arc minutes
Miniature Wormwheel Gearboxes
Miniature worm gear decrease boxes are greased for life and offered in metric sizes with ratios ranging from 1:1 to 30:1. Obtainable 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 one unit. Dual ball bearings and long term lubrication offer years of dependable high cycle performance. Select from three framework sizes with ratios ranging from 25:1 to 900:1. Metric sizes only.
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 light weight 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°
Output 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 Housing are economic yet deliver superior performance.