Small Precison Worm Reduction Gearboxes
There are a number of specifications you will have to consider when coming up with a worm gearbox selection.
First, what is the input and output torque requirements? Next, verify vendor horsepower/torque charts and pick the correct worm equipment reducer.
If the size of the gearbox will probably be an important consideration then check the reducer dimension specifications, not all manufacturers make compact units. In fact, working with the proper supplier can help you not only find the right equipment reducer but also avoid some of the most typical errors in reducer selection. We provide a free guide to assist you find the right supplier to work with.
For low and fractional horsepower program you can expect two sizes of worm equipment reducer, the SW-1 and the SW-5. Size and torque output are the major distinctions between these two models. Both feature the hollow or solid output shaft. Both models are compact and provide users a wide selection of ratios, including:
SW-1, 3.5:1 to 60:1
SW-5, 5:1 to 100:1
Understanding the specs of your particular application or project is essential to selecting the correct worm gearbox.
Precision, 6:1 to 100:1 ratios, torque 1 to 10 Nm and multishaft arrangements
M1, M2, M3
Metric Worm Reduction Gearboxes
Small precision with multi-shaft arrangements
• 6:1 to 100:1
• Torque 1 to 10 Nm
• Drilled and tapped mounting holes at the top and bottom
• Flush fitting bearing caps easy to install
• Input shafts installed on precision ball bearings
• Max. input speed 10000rpm
• Anti backlash version available
Additional Range:
Neckar Worm small worm gearbox 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 Correct Angle Worm Gear Motors Used
Anywhere a compact dual shaft gear motor or single shaft gear motor is required. This right angle gear motor is so versatile it could work just about anywhere.
Features & Options
Double Shaft or One Shaft
Hollow Shaft
Maximize Torque in a Small 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 unique, high accuracy mini gearboxes that cannot be found anywhere else. Our miniature gearboxes are available in many configurations, including worm and wheel, cross axis helical, bevel, inline spur, and more. We can also provide custom 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 custom micro gearbox.
Micro Gearbox Options
Gearboxes are also known as reducers, gear reducers, acceleration reducers, gear drives, and gearmotors. All terms can be used more or less 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 design.
Bevel Box Micro Equipment Drive
Our bevel box miniature gear drives are software rated for the maximum balance of functionality and cost. Torque can be balanced to meet your RPM and operating life requirements. Light-weight with low backlash performance (as little as 1°, with choice 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 levels of thrust in a compact package. They offer an result shaft at 90° from the input, and so are obtainable in 
gear ratios from 1:1 to 40:1. Lightweight but durable, with machined 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 speeds up to 4,000 RPM
“Left hand” models available
Miniature 2 Shaft Worm Gearbox
Our miniature 2 shaft worm gearmotors are engineered for ≤30 arc minutes of backlash or better. Also known as “shaft to bore gearboxes,” the unit provide a single insight shaft that protrudes from reverse sides of the casing; output is usually a keyed bore. Standard single- and double-end shafts can be found and supplied with keys and retainer bands. An array of equipment ratios and input sizes can be found to meet your preferences.
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 speeds up 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 long term lubrication. They provide two insight shafts on opposite sides of the frame, with two result shafts perpendicular to the input shafts. Our mini 4 shaft worm equipment drives deliver high effectiveness overall performance with low backlash.
High efficiency: up to 82% at 1,000 RPM
Low backlash: less than ≈2°
Available with gear ratios from 1:1 to 32:1
Rated for input boosts to 4,000 RPM
Miniature Flange Worm Equipment Drive
These micro flange worm gearboxes generate an output at 90° from the insight. They deliver superior overall performance in an amazing array applications and are built with little footprints, making them well suited for operations where space is limited. They offer high performance with low backlash.
Gear ratios from 6.66:1 to 80:1
High efficiency: up to 83% at 1,000 RPM
Low backlash: as low as ≤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 are available in two frame sizes, and so 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 most demanding applications.
Output 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 correct angle worm equipment reducers deliver excellent performance with high efficiency, and show rugged construction for challenging power transfer procedures. Available in three equipment ratios (5:1, 10:1, 20:1), our small worm gearboxes are built in extremely small footprints for applications where space is bound.
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
Small footprint: 1.5” x 1.5” x 1.08”
Custom Miniature Gearbox
Ever-Power may engineer and produce a customized miniature gearbox to meet your unique specs. We can produce custom micro gearboxes in any configuration the application requires, with result torque levels as high as 900Nm. We are able to work from your own gearbox designs, reverse engineer an existing unit, or assist you to develop an all-new style that delivers the performance you need. Request a quote on a custom miniature gearbox or contact us to discuss your specific requirements.
The Ever-Power Advantage: Small is No Big Problem
Broadest collection of small gear reducers
Greased for life
Ruggedly built
Modifications and unique ratios available
Custom small gearboxes designed to suit
Input & Output Shafts
Input and output shafts with drive crucial and retainer rings could be supplied to your specs for any of our hollow bore miniature gearboxes. We provide a basic selection of single ended or dual ended shafts to assemble in these gearboxes. All gearbox shafts are supplied with keys and retainer rings.
For P and PF series worm and wheel gearboxes use our P/PF gearbox shafts.
For Electronic series crossed axis helical gearboxes use our E gearbox shafts.
For F series spur gearboxes, contact our application engineers to discuss your particular needs.
We offer a broad collection of misalignment shaft couplings in ” and metric bore sizes. In . and metric precision floor shafts are available from stock.
Contact Us for High Performance Miniature Gearboxes
We will be the miniature gearbox specialists. All of our micro gear drive models deliver superior functionality in a little footprint, and are tough enough for challenging work environments. E mail us to find out more about our mini gearboxes, or request a quote on a customized model that’s tailored to your preferences.
Additional benefits of worm drive gearboxes include: