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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 many configurations, which includes worm and wheel, cross axis helical, bevel, inline spur, and more. We can 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 request a quote upon a custom micro gearbox.
Miniature Bevel Gearboxes | Micro Bevel Equipment Drives | Mini Bevel Gearboxes
Miniature Cross Axis Helical Gearboxes | Cross Axis Helical Mini Gear
Cross Axis Helical
Miniature Shaft-to-Bore Worm Gearboxes & Speed Reducers
Miniature 4 Shaft Worm Gearboxes | Mini 4 Shaft Worm Gear Motors
4 Shaft Worm
Miniature Flange Worm Gearboxes | Micro Flange Worm Equipment Drives
Miniature Inline Spur Gearboxes | Micro Inline Spur Speed Reducers
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 info on the full selection of frame sizes for that series or design.
Bevel Box Micro Gear Drive
Our bevel box miniature gear drives are application rated for the ideal balance of overall performance and cost. Torque can be balanced to meet up your RPM and working life requirements. Lightweight with low backlash overall 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 boosts 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 so are obtainable in gear ratios from 1:1 to 40:1. Lightweight but long lasting, with machined 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 minutes of backlash or better. Also known as “shaft to bore gearboxes,” these devices provide a single input shaft that protrudes from reverse sides of the housing; output is certainly a keyed bore. Standard single- and double-end shafts are available and supplied with keys and retainer bands. An array of gear 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 steel gears, solid aluminium housings, and permanent lubrication. They provide two input shafts on reverse sides of the frame, with two output shafts perpendicular to the insight shafts. Our mini 4 shaft worm equipment drives deliver high effectiveness efficiency 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 Gear Drive
These micro flange worm gearboxes generate an output at 90° from the input. They deliver superior overall performance in a wide variety applications and are built with small footprints, making them perfect for operations where space is bound. 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 so are rated for speeds up to 3,000 RPM. Aluminum housings and stainless gears and shafts make these inline spur gearboxes hard and corrosion resistant, for your many 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 gear reducers deliver excellent performance with high efficiency, and show rugged construction for challenging power transfer functions. Available in three equipment ratios (5:1, 10:1, 20:1), our compact worm gearboxes are built in extremely compact 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
Compact 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 specifications. We can produce custom micro gearboxes in any configuration your application requires, with output torque amounts as high as 900Nm. We can work from your own gearbox styles, reverse engineer a preexisting unit, or help you develop an all-new style that provides the performance you need. Ask for a quote on a custom made miniature gearbox or e mail us to discuss your unique requirements.
The Ever-Power Advantage: Small is No Big Problem
Broadest collection of small gear reducers
Greased for life
Modifications and unique ratios available
Custom small gearboxes designed to suit
Input & Output Shafts
Input and output shafts with drive important and retainer rings can be supplied to your specifications for any of our hollow bore miniature gearboxes. We offer a basic selection of one ended or dual 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 Electronic gearbox shafts.
For F series spur gearboxes, contact our app engineers to discuss your particular needs.
We offer a broad selection of misalignment shaft couplings in inch and metric bore sizes. In . and metric precision surface shafts are available from stock.
Die-cast zinc housing – Various models for hand operation
Compact Worm Gearboxes
4731 to 4742, 4746 to 4767
Ideal 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 motor and worm gear is one of the essential strengths of EP worm gearmotors, which combine DC engine technology with exceptional strength and wear resistance. Electric motor and gearbox were created as you single, compact unit. Because of their reduced current attract, 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 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 are able to select a wide selection of standard 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 small dimensions or low weight with regards to power, high efficiency, quiet and vibration-free operation, extended life, high level of resistance to vibration, pressure or temperature, integrated linear screw, or a combination of this kind of properties, our item range with an increase of than 1000 different standard gearboxes is probably a good begin to be able to deliver a product that stands out on your side.
Compact gearboxes are high-quality gearboxes for regular drives. The electric engine is built-in with the gearbox into a single device (the first equipment is on the motor shaft). Individual gearboxes for connection to conventional IEC motors may also be supplied on request.
Due to the complexity of the gearboxes’ configuration, they cannot be purchased in our e-shop. Our specialists will be pleased to help you create your selection. We will be happy to send you documentation or design the right set directly, on ask for.
VANE MOTORS WITH GEARBOXES
Combinations possible with all our vane motors
ATEX combinations possible
Stainless steel options possible
Special wishes possible
Ever-Power worm gearboxes possess earned a reputation to be an industry benchmark worldwide. Our success came from our relentless drive for quality with state-of-the-artwork technology, all while offering worm gearboxes are affordable prices. High flexibility accorded through a wide choice of mounting choices, shaft configurations and electric motor 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 quickness gear ratio. Being simple and compact in design, these gears can perform higher gear ratio than the helical gears. These worm decrease gears having screw type characteristics are similar to helical gears, but its helix position is typically comparatively bigger) and its body is generally quite long in the axial direction. The gears in these gearboxes can be correct or left-handed depending upon the purpose.
Mounting choice include universal housing, part flanges, foot (horizontal and vertical), shaft mounted with torque arm. Available in Solid shafts (single or dual), 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, efficiently running and highly powerful drive systems.
Our high-performance gear models are designed to withstand the toughest industrial applications.
The apparatus housings are machined on all sides and permit diverse mounting positions and applications, making them much sought after in the industry. Consequently 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 guarantees optimum rolling contact under load.
The special tooth root style in combination with tooth helix angle, tooth depth, the components used and surface finish maximizes load capacity. This high gearing capacity enables smaller tires to be used for the same torque, and smaller gears with extraordinary power density can also increase reliability. Ever-Power geared motors are as a result incredible space savers.
Gearing manufactured with such micro-geometric precision allows the gearing play required for troublefree rolling contact to be substantially decreased and therefore the gear backlash to be minimized.
Double chamber shaft seals developed by Ever-Power are utilized 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
Diverse mounting options
Precision Worm Gearboxes & Geared Motors
EP’s precision worm gearboxes are designed for those more demanding applications where small size, high torque, high ratio, low backlash, low noise and long life time are required. Offered in 9 sizes, these worm gearboxes can be supplied with free input shaft, with hollow bore input shaft and motor flange, and double reduction mixture units for slow velocity applications. Using cast iron housings, high quality bronze alloy worm tires and extended life bearings, reliability and overall performance are the key top features of this range.
High Precision Right Position Transmission
Wide Selection Of Ratios
Special Surface Treatments
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