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Using miniature gears, Ever-Power offers designed and built unique, high accuracy mini gearboxes that can’t be found somewhere else. Our miniature gearboxes are available in numerous configurations, which includes worm and wheel, cross axis helical, bevel, inline spur, and more. We are able to also provide customized micro gearboxes that are designed and built to meet your unique specifications.
Contact us for the mini gearbox your application requires, or demand a quote on 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 Speed 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 pretty much interchangeably. Please note that the links for our little gear drives include info on the full range of frame sizes for that series or style.
Bevel Box Micro Gear Drive
Our bevel box miniature gear drives are program rated for the ideal balance of performance and cost. Torque could be balanced to meet up your RPM and operating life requirements. Light-weight with low backlash functionality (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 compact package. They provide an output 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: only ≤30 arc minutes
Rated for input boosts to 4,000 RPM
“Left hand” models available
Miniature 2 Shaft Worm Gearbox
Our miniature 2 shaft worm gearmotors are engineered for ≤30 arc mins of backlash or better. Also known as “shaft to bore gearboxes,” these devices provide a single input shaft that protrudes from opposing sides of the casing; output is certainly a keyed bore. Standard solitary- and double-end shafts are available and given keys and retainer bands. 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 boosts 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 provide two insight shafts on opposite sides of the frame, with two output shafts perpendicular to the insight shafts. Our mini 4 shaft worm gear drives deliver high efficiency overall performance 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 speeds up to 4,000 RPM
Miniature Flange Worm Equipment Drive
These micro flange worm gearboxes create an output at 90° from the insight. They deliver superior efficiency in an amazing array applications and are built with little footprints, making them perfect for procedures where space is bound. 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
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. Light weight aluminum housings and stainless steel gears and shafts make these inline spur gearboxes difficult 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 superior performance with high efficiency, and feature rugged structure for challenging power transfer functions. Available in three gear ratios (5:1, 10:1, 20:1), our small worm gearboxes are designed in extremely compact 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 can engineer and produce a custom miniature gearbox to meet your unique specifications. We can produce custom micro gearboxes in any configuration the application requires, with output 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 provides the performance you will need. Demand a quote on a customized miniature gearbox or contact us to discuss your specific requirements.
The Ever-Power Advantage: Small is No Big Problem
Broadest selection 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 result shafts with drive essential and retainer rings could 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 put together 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 Electronic series crossed axis helical gearboxes use our E gearbox shafts.
For F series spur gearboxes, contact our program engineers to go over your particular needs.
We provide a broad selection of misalignment shaft couplings in ” and metric bore sizes. Inch and metric precision ground shafts can be found from stock.
Die-cast zinc housing – 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 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 essential strengths of EP worm gearmotors, which combine DC engine technology with exceptional strength and wear resistance. Motor and gearbox are designed as one single, compact unit. Thanks to their reduced current attract, 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 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 variety of regular customizations to meet the requirements of various properties that are essential for each application.
If your application requires a gearbox with some special residence such as 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 item range with more than 1000 different standard gearboxes is most likely a good begin to be able to deliver a product that stands out in your favor.
Small gearboxes are high-quality gearboxes for standard drives. The electric electric motor is built-in with the gearbox into a single device (the first equipment is directly on the electric motor shaft). Separate 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 professionals will be happy to help you make your selection. We are happy to send you documentation or design a suitable set directly, on ask for.
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 possess earned a reputation to be an industry benchmark worldwide. Our success came from our relentless drive for quality with state-of-the-art 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 industry. The helical-worm and the double-worm version, with or without the torque limiter, add up to the advantage, creating an extremely versatile drive system.
Ever-Power Worm gearboxes provide high torque with low speed gear ratio. Being basic and compact in style, these gears can perform higher gear ratio than the helical gears. These worm reduction gears having screw type characteristics act like helical gears, but its helix position is typically comparatively larger) and its body is normally quite long in the axial direction. The gears in these gearboxes could be right 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 (single or double), with torque arm or torque limiter.
Top Quality Geared Motors. Ever-Power gearboxes and geared motors are the electro-mechanical key components for low backlash, smoothly running and highly powerful drive systems.
Our high-performance gear products are built to withstand the toughest industrial applications.
The gear housings are machined on all sides and permit diverse mounting positions and applications, making them much popular in the industry. As a result our geared motors are often 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 simply by FEM (Finite Element Method). This tooth geometry ensures 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 wheels to be used for the same torque, and smaller gears with exceptional power density also increase reliability. Ever-Power geared motors are as a result incredible space savers.
Gearing produced with such micro-geometric precision allows the gearing enjoy necessary for troublefree rolling get in touch with to be substantially decreased and therefore the gear backlash to be minimized.
Dual 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 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 created 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 could be supplied with free input shaft, with hollow bore input shaft and engine flange, and double decrease combination units for slow speed applications. Using cast iron housings, high quality bronze alloy worm tires and long life bearings, reliability and performance are the key features of this range.
High Precision Right Angle Transmission
Long Lifetime
WIDE RANGE Of Ratios
Special Surface Treatments

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