Small Precison Worm Reduction Gearboxes
There are a variety of specifications you will need to consider when coming up with a worm gearbox selection.
First, what is the insight and output torque requirements? Next, check vendor horsepower/torque charts and pick the correct worm gear reducer.
If the size of the gearbox is going to be an important consideration then check the reducer dimension specs, not all manufacturers make compact units. In fact, working with the right supplier will help you not just find the right gear reducer but also avoid some of the most typical mistakes in reducer selection. We provide a free guide to help you find the right supplier to utilize.
For low and fractional horsepower app you can expect two sizes of worm gear reducer, the SW-1 and the SW-5. Size and torque output are the major differences between both of these models. Both feature either a hollow or solid output shaft. Both versions are compact and offer users an array of ratios, including:
SW-1, 3.5:1 to 60:1
SW-5, 5:1 to 100:1
Understanding the specs of your unique application or task is vital to selecting the right worm gearbox.
Precision, 6:1 to 100:1 ratios, torque 1 to 10 Nm and multishaft arrangements
M1, M2, M3
Metric Worm Reduction Gearboxes
Little precision with multi-shaft arrangements
• 6:1 to 100:1
• Torque 1 to 10 Nm
• Drilled and tapped installation holes on top and bottom
• Flush fitting bearing caps simple to install
• Input shafts mounted on precision ball bearings
• Max. input speed 10000rpm
• Anti backlash version available
Additional Range:
Neckar Worm Gearboxes Type S – 4 sizes available
Smallest gearbox specifications:
• 5:1 to 60:1
• Output Torque: 1.4-2 Nm
• Aluminium housig
• Special steel worm wheel
• Max. load capacity of output shaft 100N radial, 50N Axial
• Max. input speed 5,000 rpm
• Weight: 0.225kg
Where are Right Angle Worm Gear Motors Used
Anywhere a concise dual shaft gear motor or single shaft gear motor is necessary. This right angle equipment motor is indeed versatile it can work just about anywhere.
Features & Options
Double Shaft or Single Shaft
Hollow Shaft
Maximize Torque in a little Package
Wide Gear Ratio
Cost-Effective
Compact Size
Specifications
Rated Torque: 55.3 – 700 g-cm
Rated Speed: 4710-5900 rpm
Rated Current: 240 – 5500 mA
Gear Ratios: 1:50 – 1:1050
Using miniature gears, Ever-Power offers designed and built exclusive, high precision mini gearboxes that can’t be found somewhere else. Our miniature gearboxes can be found in numerous configurations, including worm and wheel, cross axis helical, bevel, inline spur, and more. We are able to also provide customized micro gearboxes that were created and built to meet your specific specifications.
Contact us for the mini gearbox your application requires, or demand a quote on a customized micro gearbox.
Micro Gearbox Options
Gearboxes are also known as reducers, gear reducers, acceleration reducers, gear drives, and gearmotors. All conditions can be used pretty much interchangeably. Please be aware that the links for our little gear drives include details on the full range of body sizes for that series or style.
Bevel Box Micro Gear Drive
Our bevel box miniature gear drives are program rated for the maximum balance of overall performance and cost. Torque can be balanced to meet up your RPM and working life requirements. Lightweight with low backlash performance (less than 1°, with option of 1/2”).
Output torque: up to 7 oz.-inches
Low backlash: ≈1°, option of 1/2”
Rated for input speeds up to 2,000 RPM
Temperature range: -5° to 175°F (-20° to 79°C); optional to -40°F (-40°C)
Cross Axis Helical Miniature Gearbox
Ever-Power miniature cross axis helical gearboxes provide relatively high amounts of thrust in a concise package. They provide an output shaft at 90° from the input, and are available in gear ratios from 1:1 to 40:1. Light-weight but long lasting, with machined light weight aluminum housings and hardened alloy steel gears.
High efficiency: up to 88% at 1,000 RPM
Low backlash: only ≤30 arc minutes
Rated for input boosts to 4,000 RPM
“Left hand” models available
Miniature 2 Shaft Worm Gearbox
Our miniature 2 shaft worm gearmotors are engineered for ≤30 arc a few minutes of backlash or better. Also called “shaft to bore gearboxes,” these devices provide a single insight shaft that protrudes from reverse sides of the casing; output is definitely a keyed bore. Standard one- and double-end shafts can be found and supplied with keys and retainer bands. An array of equipment ratios and input sizes are available to meet up your needs.
High efficiency: up to 86% at 1,000 RPM
Low backlash: ≤30 arc minutes or better
Available in ratios from 5:1 to 120:1
Rated for input boosts to 3,000 RPM
Miniature 4 Shaft Worm Gearbox
Every miniature 4-shaft worm gearbox from Ever-Power features precision-machined hardened metal gears, solid aluminium housings, and permanent lubrication. They provide two insight shafts on opposite sides of the framework, with two output shafts perpendicular to the insight shafts. Our mini 4 shaft worm equipment drives deliver high effectiveness functionality with low backlash.
High efficiency: up to 82% at 1,000 RPM
Low backlash: as little as ≈2°
Available with equipment ratios from 1:1 to 32:1
Rated for input speeds up to 4,000 RPM
Miniature Flange Worm Equipment Drive
These micro flange worm gearboxes create an output at 90° from the input. They deliver superior overall performance in a wide variety applications and are built with little footprints, making them well suited for operations where space is limited. They offer high effectiveness with low backlash.
Gear ratios from 6.66:1 to 80:1
High efficiency: up to 83% at 1,000 RPM
Low backlash: only ≤4°
Max. input speed: 3,000 PRM
DC motor option available
Miniature Inline Spur Gearbox
Specifically engineered for encoder applications, Ever-Power’ micro inline spur gear drives can be found in two frame sizes, and are rated for speeds up to 3,000 RPM. Aluminum housings and stainless steel gears and shafts make these inline spur gearboxes hard and corrosion resistant, for your many demanding applications.
Result torque: up to 125 oz.-inches
Low backlash: as little as 15 arc minutes
Available with gear ratios from 4.96:1 to 3600:1
Optional synchro cleats available
Compact Wormwheel Gearbox
These miniature right angle worm gear reducers deliver superior performance with high efficiency, and show rugged construction for challenging power transfer operations. Available in three gear ratios (5:1, 10:1, 20:1), our small worm gearboxes are designed in extremely compact footprints for applications where space is limited.
90° output angle
Gear ratios: 5:1, 10:1, and 20:1
Up to 12.5 inch-lbs. of output torque
Max. input speed: 3,000 RPM
Compact footprint: 1.5” x 1.5” x 1.08”
Custom Miniature Gearbox
Ever-Power may engineer and manufacture a custom miniature gearbox to meet up your unique specs. We can produce custom micro gearboxes in practically any configuration your application requires, with output torque levels as high as 900Nm. We can work from your gearbox designs, reverse engineer an existing unit, or assist you to develop an all-new style that delivers the performance you will need. Demand a quote on a customized miniature gearbox or e mail us to discuss your unique requirements.
The Ever-Power Advantage: Little is No Big Problem
Broadest selection of small gear reducers
Greased for life
Ruggedly built
Modifications and unique ratios available
Custom small gearboxes made to suit
Input & Output Shafts
Input and output shafts with drive essential and retainer rings can be supplied to your specifications for just about any of our hollow bore miniature gearboxes. We offer a fundamental selection of one ended or dual ended shafts to put together in these gearboxes. All gearbox shafts are supplied with keys and retainer rings.
For P and PF series worm and wheel gearboxes make use of our P/PF gearbox shafts.
For Electronic series crossed axis helical gearboxes use our Electronic gearbox shafts.
For F series spur gearboxes, contact our software engineers to discuss your unique needs.
We provide a broad collection of misalignment shaft couplings in in . and metric bore sizes. In . and metric precision surface shafts are available from stock.
Contact Us for POWERFUL Miniature Gearboxes
We are the miniature gearbox specialists. All of our micro gear drive models deliver superior overall performance in a small footprint, and are rugged enough for challenging work environments. E mail us to learn more about our mini gearboxes, or request a quote on a custom model that is tailored to your needs.
Additional benefits of worm drive gearboxes include:

For more small worm gearbox info don’t think twice to offer our friendly staff a phone call.