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January 13, 2020

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Using miniature gears, Ever-Power has designed and built unique, high accuracy mini gearboxes that can’t be found anywhere else. Our miniature gearboxes can be found in several configurations, which includes worm and wheel, cross axis helical, bevel, inline spur, and more. We are able to also provide custom micro gearboxes that are designed and created to meet your specific specifications.
E mail us for the mini gearbox the application requires, or ask for a quote upon a custom micro gearbox.
Miniature Bevel Gearboxes | Micro Bevel Gear 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 Acceleration Reducers
Inline Spur
Compact Worm
Compact Worm
Micro Gearbox Options
Gearboxes are also known as reducers, gear reducers, speed reducers, gear drives, and gearmotors. All terms can be used more or less interchangeably. Please note that the links for our small gear drives include details on the full range of framework sizes for that series or design.
Bevel Box Micro Equipment Drive
Our bevel box miniature gear drives are software rated for the optimum balance of efficiency and cost. Torque could be balanced to meet up your RPM and operating 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 levels of thrust in a compact package. They provide an output shaft at 90° from the input, and so are available in gear ratios from 1:1 to 40:1. Lightweight 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 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 input shaft that protrudes from opposite sides of the housing; output is definitely a keyed bore. Standard solitary- and double-end shafts can be found and supplied with keys and retainer bands. An array of equipment 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
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 long lasting lubrication. They provide two input shafts on opposing sides of the body, with two output shafts perpendicular to the insight shafts. Our mini 4 shaft worm equipment drives deliver high performance 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 boosts 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 performance in a wide variety applications and are constructed with small footprints, making them ideal for procedures 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: 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 are rated for boosts to 3,000 RPM. Aluminium housings and stainless steel gears and shafts make these inline spur gearboxes challenging and corrosion resistant, for your the majority of 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 right angle worm equipment reducers deliver superior performance with high efficiency, and feature rugged building for challenging power transfer functions. Available in three gear ratios (5:1, 10:1, 20:1), our small 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
Compact footprint: 1.5” x 1.5” x 1.08”
Custom Miniature Gearbox
Ever-Power may engineer and manufacture a customized miniature gearbox to meet your unique specs. We can produce customized micro gearboxes in virtually any configuration the application requires, with result torque amounts as high as 900Nm. We are able to work from your gearbox designs, reverse engineer a preexisting unit, or assist you to develop an all-new style that delivers the performance you will need. Ask for a quote on a custom made miniature gearbox or contact us to discuss your specific requirements.
The Ever-Power Advantage: Little is No Big Problem
Broadest selection of small gear reducers
Greased for life
Ruggedly built
Modifications and special ratios available
Custom small gearboxes made to suit
Input & Output Shafts
Input and result shafts with drive crucial and retainer rings could be supplied to your specs for just about any of our hollow bore miniature gearboxes. We offer a basic selection of solitary 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 go over your particular needs.
We provide a broad selection of misalignment shaft couplings in inch and metric bore sizes. ” and metric precision floor shafts can be found from stock.
Die-cast zinc casing – Various models for hands 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 range 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
Direct coupling between servo engine and worm gear is among the key strengths of EP worm gearmotors, which combine DC engine technology with exceptional strength and wear resistance. Motor and gearbox were created as one single, compact unit. Because of their reduced current pull, these gearmotors deliver more accurate control of working temperature and higher effectiveness.
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 standard customizations to meet the requirements of various properties that are essential for each application.
If your application takes a gearbox with some special house such as small dimensions or low weight in relation to power, high efficiency, quiet and vibration-free operation, extended life, high resistance to vibration, pressure or temperature, integrated linear screw, or a combination of such properties, our item range with more than 1000 different standard gearboxes is probably a good begin to be able to deliver a product that stands out on your side.
Small gearboxes are high-quality gearboxes for regular drives. The electric motor is included with the gearbox right into a single device (the first gear is on the engine shaft). Individual gearboxes for link with conventional IEC motors may also be supplied on request.
Because of the complexity of the gearboxes’ configuration, they cannot be purchased inside our e-shop. Our professionals will be happy to help you make your selection. We are happy to send you documentation or design 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 options possible
Special wishes possible
Ever-Power worm gearboxes possess earned a popularity to be an industry benchmark worldwide. Our success came from our relentless drive for quality with state-of-the-artwork technology, all and will be offering worm gearboxes are inexpensive prices. High versatility accorded through a broad choice of mounting choices, shaft configurations and motor interfaces, makes the Ever-Power worm gearbox the default choice for the industry. The helical-worm and the double-worm edition, 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 speed gear ratio. Being basic and compact in style, these gears can achieve higher gear ratio compared to the helical gears. These worm decrease gears having screw type characteristics act like helical gears, but its helix angle is typically comparatively larger) and its own body is generally quite lengthy in the axial path. The gears in these gearboxes can be correct or left-handed depending upon the purpose.
Mounting option include universal housing, aspect flanges, foot (horizontal and vertical), shaft mounted with torque arm. Obtainable in Solid shafts (solitary 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, smoothly running and highly dynamic drive systems.
Our high-performance gear systems are built to withstand the toughest commercial applications.
The apparatus housings are machined on all sides and invite diverse mounting positions and applications, making them much sought after in the industry. As a result our geared motors tend to be to be found within 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 by FEM (Finite Element Method). This tooth geometry guarantees optimum rolling get in touch with 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 allows smaller wheels to be used for the same torque, and smaller gears with extraordinary power density also increase reliability. Ever-Power geared motors are therefore incredible space savers.
Gearing produced with such micro-geometric precision allows the gearing enjoy required for troublefree rolling get in touch with to be substantially reduced and then the gear backlash to be minimized.
Double chamber shaft seals developed by Ever-Power are utilized as standard in parallel shaft, shaft installed and helical worm gears for a high level of tightness.
Ever-Power’s modular equipment technology meets certain 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 created for those more demanding applications where small size, high torque, high ratio, low backlash, low noise and long lifetime are required. Offered in 9 sizes, these worm gearboxes could be supplied with free insight shaft, with hollow bore insight shaft and motor flange, and double reduction mixture units for slow swiftness applications. Using cast iron housings, high quality bronze alloy worm tires and extended life bearings, reliability and functionality are the key top features of this range.
High Precision Right Angle Transmission
Long Lifetime
WIDE RANGE Of Ratios
Special Surface Treatments

To discover additional information on Compact Worm Gearbox see our web site.