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Using miniature gears, Ever-Power provides designed and built exclusive, high precision mini gearboxes that cannot be found somewhere 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 customized micro gearboxes that are designed and built to meet your unique specifications.
Contact 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 Gear Drives
Flange Worm
Miniature Inline Spur Gearboxes | Micro Inline Spur Rate Reducers
Inline Spur
Compact Worm
Compact Worm
Micro Gearbox Options
Gearboxes are also called reducers, gear reducers, quickness reducers, equipment drives, and gearmotors. All terms can be used more or less interchangeably. Please note that the links for our small gear drives include information on the full selection of body sizes for that series or design.
Bevel Box Micro Equipment Drive
Our bevel box miniature equipment drives are application rated for the optimum balance of performance and cost. Torque can be balanced to meet up your RPM and operating life requirements. Light-weight with low backlash overall performance (as little as 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 compact package. They offer an output shaft at 90° from the input, and are available in gear ratios from 1:1 to 40:1. Lightweight but long lasting, with machined aluminum housings and hardened alloy metal 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 a few minutes of backlash or better. Also called “shaft to bore gearboxes,” the unit provide a single insight shaft that protrudes from reverse sides of the housing; output is usually a keyed bore. Standard single- and double-end shafts are available and supplied with keys and retainer bands. An array of gear ratios and insight sizes can be found to meet your preferences.
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 lasting lubrication. They offer two insight shafts on opposite sides of the frame, with two result shafts perpendicular to the insight shafts. Our mini 4 shaft worm gear drives deliver high effectiveness performance with low backlash.
High efficiency: up to 82% at 1,000 RPM
Low backlash: less than ≈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 efficiency in a wide variety applications and are built with small 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: 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 gears and shafts make these inline spur gearboxes difficult and corrosion resistant, for your the majority of 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 correct angle worm equipment reducers deliver superior performance with high efficiency, and show rugged construction for challenging power transfer operations. Available in three equipment ratios (5:1, 10:1, 20:1), our compact worm gearboxes are designed in extremely small 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
Small footprint: 1.5” x 1.5” x 1.08”
Custom Miniature Gearbox
Ever-Power can engineer and manufacture a customized miniature gearbox to meet your unique specs. We can produce custom micro gearboxes in virtually any configuration the application requires, with output torque amounts as high as 900Nm. We can work from your own gearbox styles, reverse engineer an existing unit, or help you develop an all-new style that delivers the performance you will need. Request a quote on a customized miniature gearbox or contact us to discuss your specific requirements.
The Ever-Power Advantage: Little is No Big Problem
Broadest collection of small gear reducers
Greased for life
Ruggedly built
Modifications and particular ratios available
Custom small gearboxes made to suit
Input & Output Shafts
Input and output shafts with drive key and retainer rings could be supplied to your specs for just about any of our hollow bore miniature gearboxes. We provide a basic selection of one ended or double ended shafts to assemble in these gearboxes. All gearbox shafts are given keys and retainer rings.
For P and PF series worm and wheel gearboxes use our P/PF gearbox shafts.
For E series crossed axis helical gearboxes use our Electronic gearbox shafts.
For F series spur gearboxes, contact our app engineers to go over your particular needs.
We provide a broad selection of misalignment shaft couplings in in . and metric bore sizes. Inch and metric precision ground shafts can be found 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 are not self locking, all the ratios are.
Max. output torques: 2 Nm to 17 Nm
Hand operation only
Immediate coupling between servo electric motor and worm gear is one of the important strengths of EP worm gearmotors, which combine DC electric motor technology with exceptional durability and wear resistance. Motor and gearbox were created as one single, compact unit. Because of their reduced current draw, these gearmotors deliver more accurate control of working temperature and higher efficiency.
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 Selection of coupling flanges
We deliver worm gearboxes, spur gearboxes and planetary gearboxes with or without integrated linear business lead screw / ball screw adapted to your flexible modular concept.
Based on this we are able to select a wide variety of regular customizations to meet the requirements of various properties that are important for each application.
If your application requires a gearbox with some special property or home such as for example small dimensions or low weight in relation to power, high efficiency, quiet and vibration-free operation, long life, high resistance to vibration, pressure or temperature, integrated linear screw, or a mixture of this kind of properties, our product range with more than 1000 different standard gearboxes is most likely a good start to be able to deliver something that stands out in your favor.
Small gearboxes are high-quality gearboxes for regular drives. The electric electric motor is included with the gearbox right into a single device (the first equipment is on the motor shaft). Individual gearboxes for link with conventional IEC motors can also be supplied on request.
Because of the complexity of the gearboxes’ configuration, they can not 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 a suitable set directly, on demand.
VANE MOTORS WITH GEARBOXES
Combinations feasible 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 popularity to be a business benchmark worldwide. Our achievement originated from our relentless drive for quality with state-of-the-art technology, all while offering worm gearboxes are inexpensive prices. High flexibility accorded through a broad choice of mounting options, shaft configurations and engine interfaces, makes the Ever-Power worm gearbox the default choice for the sector. The helical-worm and the double-worm version, with or without the torque limiter, soon add up to the advantage, creating an extremely versatile drive system.
Ever-Power Worm gearboxes provide high torque with low swiftness gear ratio. Being simple and compact in design, these gears can perform higher gear ratio than the helical gears. These worm reduction gears having screw type characteristics are similar to helical gears, but its helix position is typically comparatively larger) and its body is normally quite long in the axial path. The gears in these gearboxes can be correct or left-handed depending upon the purpose.
Mounting choice include universal housing, side flanges, foot (horizontal and vertical), shaft mounted with torque arm. Available in Solid shafts (one or dual), with torque arm or torque limiter.
EXCELLENT Geared Motors. Ever-Power gearboxes and geared motors are the electro-mechanical key elements for low backlash, smoothly running and highly dynamic drive systems.
Our high-performance gear models are designed to withstand the toughest commercial applications.
The apparatus housings are machined on all sides and invite diverse mounting positions and applications, producing them much sought after in the industry. As a result 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 supported simply by FEM (Finite Element Method). This tooth geometry guarantees optimum rolling contact under load.
The special tooth root design in combination with tooth helix angle, tooth depth, the materials used and surface finish maximizes load capacity. This high gearing capacity enables smaller wheels to be utilized for the same torque, and smaller gears with outstanding power density also increase reliability. Ever-Power geared motors are therefore incredible space savers.
Gearing manufactured with such micro-geometric accuracy allows the gearing enjoy required for troublefree rolling get in touch with to be substantially reduced and then the gear backlash to end up being minimized.
Double chamber shaft seals developed by Ever-Power are used as standard in parallel shaft, shaft mounted and helical worm gears for a high level of tightness.
Ever-Power’s modular equipment 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 life time 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 combination units for slow speed applications. Using cast iron housings, top quality bronze alloy worm tires and long life bearings, reliability and efficiency are the key features of this range.
High Precision Right Position Transmission
Long Lifetime
WIDE RANGE Of Ratios
Special Surface Treatments
Do you have any recommendations on the compact worm gearbox, please do not wait to contact us.