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 result or shaft insight to hollow bore output
Input & Output Shafts for Worm Gearboxes
Input shafts and output shafts with drive keys and retainer bands can 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 contains a broad collection of misalignment shaft couplings in ” and metric bore sizes for your worm gearbox application. Other ” 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 manufacturing gearboxes and other precision drive parts. 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 attach input
NEMA mount flanges available
Rugged worm gear reducers built for dependability in challenging applications
Permanently lubricated
Gearboxes are conservatively rated
Available with ingress protection to IP65 or more
Solid aluminum housings
Ball bearings on input and output
Custom 90-degree 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. Order today, request a quote, or contact Ever-Power for the worm gear reducer you need.
See individual item listings for additional 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 insight and result. If you’re uncertain which gear reduction container is best suited to your application, watch our Buyer’s Instruction to see ten essential points to consider when choosing a gearbox. Another valuable reference, Inertia and the usage of Inertia Statistics, offers a method for coping with inertia in worm gear selection.
Shaft to Bore Wormwheel Gearboxes
Shaft to bore worm gearboxes are engineered for ≤30 arc mins of backlash. Offered ratios range from 5:1 to 120:1 with single-ended or small worm gearbox 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 as low as 4 arc minutes
Flange Wormwheel Gearboxes
Flange gear decrease 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 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 speeds up 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° result angle and so are offered with decrease ratios ranging 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 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 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°
Output torque up to 3.95 lbf.in.
Framework 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 within a unit. Dual ball bearings and long lasting lubrication offer years of dependable high cycle performance. Pick from three frame sizes with ratios which range from 25:1 to 900:1. Metric sizes only.
Insight 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 designed to manage demanding power transfer applications and is obtainable with a 5:1, 10:1 or 20:1 equipment ratio. Features include machined light weight aluminum 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°
Result torque up to 3.95 lbf.in
Lightweight – approximately 4oz
Low profile – only 1 1.09 in high.
Economic Molded Glass Filled Housing Speed Reducers
Assembled in a Cup filled Nylon Casing are financial yet deliver superior performance.