15 different 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 input to shaft result or shaft insight to hollow bore output
Input & Result Shafts for Worm Gearboxes
Input shafts and output shafts with drive keys and retainer rings can be supplied to your specs for any of our hollow bore gearboxes. We carry 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 in . and metric bore sizes for your worm gearbox program. Other ” and metric precision surface shafts can be found from stock.
The Ever-Power Advantage for Worm Drive Gearboxes
Ever-Power has 30-plus years’ experience in manufacturing gearboxes and other precision drive components. Features and advantages of our worm gears include:
High efficiency correct angle worm gear reducers
Backlash: 4, 8, or 30 arc-min
Single shaft, dual 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-level gearboxes can be found to your specifications
Demand a Quote for Precision Worm Gearboxes
We provide reliable, powerful worm gearboxes for most motion transfer applications. Purchase today, request 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 aluminum housings and ball bearings on insight and result. If you’re not sure which gear reduction container is most effective to your application, view our Buyer’s Instruction to see ten essential points to consider whenever choosing a gearbox. Another beneficial reference, Inertia and the usage of Inertia Statistics, 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. small worm gearbox available ratios range from 5:1 to 120:1 with single-finished or double-ended result 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 reduction boxes have a concise footprint and create an output at 90° from the input. Obtainable in a variety of sizes with single-ended or double-ended result shafts, and with regular 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 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 feature a compact aluminum body with a 90° result angle and are offered with decrease ratios ranging from 5:1 to 120:1. Optional NEMA 17 and NEMA 23 inputs can be found, as well as single-output or double-output shafts. 
Imperial and metric sizes.
High efficiency: up to 90% at 1,000 RPM
Result 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. Obtainable in 3.00mm or 4.00mm shaft output options. Metric sizes only.
High efficiency: up to 82% at 1,000 RPM
Max. Result: up to 4,000 RPM
Low backlash: ≈2°
Output 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 insight and output shafts and so are essentially two reduction gearboxes within a unit. Dual ball bearings and permanent lubrication offer years of reliable high cycle performance. Select from three frame sizes with ratios which range from 25:1 to 900:1. Metric sizes just.
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 made to deal with demanding power transfer applications and is offered with a 5:1, 10:1 or 20:1 equipment ratio. Features consist of machined aluminium housing and hardened metal 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 Casing Speed Reducers
Assembled in a Cup filled Nylon Casing are financial yet deliver superior efficiency.