compact worm gearbox

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Using miniature gears, Ever-Power offers designed and built unique, high precision mini gearboxes that cannot be found anywhere else. Our miniature gearboxes are available in several configurations, which includes worm and wheel, cross axis helical, bevel, inline spur, and more. We can also provide custom micro gearboxes that were created and created to meet your unique specifications.
E mail us for the mini gearbox the application requires, or request a quote upon a custom micro gearbox.
Miniature Bevel Gearboxes | Micro Bevel Equipment Drives | Mini Bevel Gearboxes
Bevel Box
Miniature Cross Axis Helical Gearboxes | Cross Axis Helical Mini Gear
Cross Axis Helical
Miniature Shaft-to-Bore Worm Gearboxes & Speed Reducers
Shaft-to-Bore
Miniature 4 Shaft Worm Gearboxes | Mini 4 Shaft Worm Gear Motors
4 Shaft Worm
Miniature Flange Worm Gearboxes | Micro Flange Worm Equipment Drives
Flange Worm
Miniature Inline Spur Gearboxes | Micro Inline Spur Rate Reducers
Inline Spur
Compact Worm
Compact Worm
Micro Gearbox Options
Gearboxes are also known as reducers, gear reducers, velocity reducers, gear drives, and gearmotors. All terms can be used more or less interchangeably. Please be aware that the links for our small gear drives include details on the full selection of body sizes for that series or design.
Bevel Box Micro Gear Drive
Our bevel box miniature equipment drives are program rated for the maximum balance of performance and cost. Torque can be balanced to meet up your RPM and working life requirements. Lightweight with low backlash efficiency (as little as 1°, with choice of 1/2”).
Result 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 compact package. They provide an result shaft at 90° from the input, and are available in gear ratios from 1:1 to 40:1. Lightweight but durable, with machined light weight aluminum housings and hardened alloy steel gears.
High efficiency: up to 88% at 1,000 RPM
Low backlash: as low as ≤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 moments of backlash or better. Also known as “shaft to bore gearboxes,” these devices provide a single insight shaft that protrudes from opposite sides of the casing; output can be a keyed bore. Standard solitary- and double-end shafts are available and given keys and retainer rings. An array of gear ratios and insight sizes can be found to meet your needs.
High efficiency: up to 86% at 1,000 RPM
Low backlash: ≤30 arc minutes or better
Obtainable 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 steel gears, solid aluminium housings, and long term lubrication. They offer two insight shafts on reverse sides of the frame, with two output shafts perpendicular to the input shafts. Our mini 4 shaft worm gear drives deliver high performance 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 produce an output at 90° from the insight. They deliver superior performance in an amazing array applications and are constructed with small footprints, making them perfect for procedures 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: only ≤4°
Max. input speed: 3,000 PRM
DC motor option available
Miniature Inline Spur Gearbox
Specially engineered for encoder applications, Ever-Power micro inline spur gear drives are available in two frame sizes, and so are rated for boosts to 3,000 RPM. Aluminium housings and stainless gears and shafts make these inline spur gearboxes tough and corrosion resistant, for your most demanding applications.
Output torque: up to 125 oz.-inches
Low backlash: less than 15 arc minutes
Available with equipment 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 feature rugged building for challenging power transfer procedures. Available in three gear ratios (5:1, 10:1, 20:1), our compact 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 manufacture a custom miniature gearbox to meet your unique specs. We can produce customized micro gearboxes in virtually any configuration your application requires, with result torque amounts as high as 900Nm. We are able to work from your own gearbox styles, reverse engineer a preexisting unit, or help you develop an all-new design that provides the performance you need. Request a quote on a custom made 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 special ratios available
Custom small gearboxes designed to suit
Input & Output Shafts
Input and result shafts with drive crucial and retainer rings can be supplied to your specs for any of our hollow bore miniature gearboxes. We provide a basic selection of single ended or double ended shafts to assemble in these gearboxes. All gearbox shafts are supplied with keys and retainer bands.
For P and PF series worm and wheel gearboxes make use of our P/PF gearbox shafts.
For E series crossed axis helical gearboxes use our E gearbox shafts.
For F series spur gearboxes, contact our software engineers to go over your particular needs.
We provide a broad selection of misalignment shaft couplings in inch and metric bore sizes. ” and metric precision ground shafts are available from stock.
Die-cast zinc casing – Various models for hand operation
Compact Worm Gearboxes
4731 to 4742, 4746 to 4767
Perfect for use with crank handle
Main physical dimensions:
P/N 4731 to 4742 40mm x 40mm x 70mm
P/N 4747 to 4767 17mm x 35mm x 42mm
Wide variety of ratios from 1:1 to 30:1
1:1, 2:1 and 2.8:1 aren’t self locking, all the ratios are.
Max. output torques: 2 Nm to 17 Nm
Hand operation only
Immediate coupling between servo engine and worm gear is among the essential strengths of EP worm gearmotors, which combine DC motor technology with exceptional toughness and wear resistance. Electric motor and gearbox are designed as you single, compact unit. Because of their reduced current pull, these gearmotors deliver more accurate control of operating temperature and higher performance.
45 W to 250 W rated output power
Gearbox centre-centre size 31 mm and 33 mm
Aluminium gearbox casing
Case-hardened, tempered and ground worm
High tin bronze worm gear
Steel shaft planetary gearboxes
Case-hardened and tempered steel gears
Low noise Range of coupling flanges
We deliver worm gearboxes, spur gearboxes and planetary gearboxes with or without integrated linear lead screw / ball screw adapted to your flexible modular concept.
Based upon this we can select a wide selection of regular customizations to meet the requirements of various properties that are essential for each application.
If your application takes a gearbox with some special real estate such as for example small dimensions or low weight in relation to power, high efficiency, quiet and vibration-free operation, long life, high level of resistance to vibration, pressure or temperature, integrated linear screw, or a combination of this kind of properties, our product range with an increase of than 1000 different standard gearboxes is most likely a good start to have the ability to deliver something that stands out on your side.
Compact gearboxes are high-quality gearboxes for standard drives. The electric engine is integrated with the gearbox into a single unit (the first gear is on the electric motor shaft). Individual gearboxes for connection to conventional IEC motors can also be supplied on request.
Because of the complexity of the gearboxes’ configuration, they cannot be purchased inside our e-shop. Our specialists will be pleased to help you make your selection. We will be happy to send out you documentation or style the right set directly, on request.
VANE MOTORS WITH GEARBOXES
Combinations possible with all our vane motors
Coaxial gearbox
Planetary gearbox
Worm gearbox
ATEX combinations possible
Stainless steel options possible
Special wishes possible
Ever-Power worm gearboxes have earned a reputation to be a business benchmark worldwide. Our achievement originated from our relentless drive for quality with state-of-the-artwork technology, all while offering worm gearboxes are inexpensive prices. High flexibility accorded through a wide choice of mounting options, shaft configurations and motor interfaces, makes the Ever-Power worm gearbox the default choice for the market. The helical-worm and the double-worm version, with or without the torque limiter, soon add up to the advantage, creating a highly versatile drive system.
Ever-Power Worm gearboxes provide high torque with low velocity gear ratio. Being simple and compact in design, these gears can achieve higher gear ratio than the helical gears. These worm reduction gears having screw type characteristics are similar to helical gears, but its helix angle is typically comparatively bigger) and its own body is normally quite lengthy in the axial path. The gears in these gearboxes can be correct or left-handed depending upon the purpose.
Mounting choice include universal housing, aspect flanges, foot (horizontal and vertical), shaft mounted with torque arm. Available in Solid shafts (single or double), with torque arm or torque limiter.
Top Quality Geared Motors. Ever-Power gearboxes and geared motors are the electro-mechanical key elements for low backlash, easily running and highly dynamic drive systems.
Our high-performance gear products are designed to withstand the toughest commercial applications.
The apparatus housings are machined on all sides and permit diverse mounting positions and applications, producing them much popular in the industry. Because of this our geared motors are often to be found as part of our customers own devices.
The smooth running of Ever-Power gear units and the outstanding load capacity of WATT teeth are achieved with 3D design backed by FEM (Finite Element Method). This tooth geometry ensures optimum rolling contact under load.
The special tooth root style in mixture with tooth helix angle, tooth depth, the materials used and surface finish maximizes load capacity. This high gearing capacity enables smaller wheels to be used for the same torque, and smaller sized gears with outstanding power density also increase reliability. Ever-Power geared motors are consequently incredible space savers.
Gearing produced with such micro-geometric precision allows the gearing play required for troublefree rolling contact to be substantially decreased and therefore the gear backlash to end up being minimized.
Double chamber shaft seals produced by Ever-Power are utilized as standard in parallel shaft, shaft mounted and helical worm gears for a higher level of tightness.
Ever-Power’s modular gear technology meets the requirements of advanced drive systems:
Excellent power density
Minimum backlash
Smooth running
Diverse mounting options
Maximum reliability
High variability
Precision Worm Gearboxes & Geared Motors
EP’s precision worm gearboxes are made for those more demanding applications where small size, high torque, high ratio, low backlash, low noise and long lifetime are required. Provided in 9 sizes, these worm gearboxes can be supplied with free input shaft, with hollow bore insight shaft and electric motor flange, and double decrease mixture units for slow speed applications. Using cast iron housings, high quality bronze alloy worm wheels and long life bearings, reliability and functionality are the key features of this range.
High Precision Right Position Transmission
Long Lifetime
Wide Selection Of Ratios
Special Surface Treatments

Dive into Compact Worm Gearbox with the info on our site.