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Using miniature gears, Ever-Power offers designed and built exclusive, high accuracy mini gearboxes that cannot 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 can also provide customized micro gearboxes that are designed and created to meet your unique specifications.
E mail us for the mini gearbox the application requires, or ask for a quote on a customized 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 Velocity 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 conditions can be used pretty much interchangeably. Please note that the links for our small gear drives include information on the full selection of framework sizes for that series or style.
Bevel Box Micro Gear Drive
Our bevel container miniature gear drives are software rated for the the best balance of overall performance and cost. Torque could be balanced to meet your RPM and operating life requirements. Lightweight with low backlash performance (less than 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 levels of thrust in a concise package. They offer an output shaft at 90° from the input, and are obtainable in gear ratios from 1:1 to 40:1. Lightweight but durable, with machined light weight aluminum housings and hardened alloy metal gears.
High efficiency: up to 88% at 1,000 RPM
Low backlash: as low as ≤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 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 certainly a keyed bore. Standard single- and double-end shafts can be found and given keys and retainer rings. An array of gear ratios and insight sizes are available 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 term lubrication. They offer two input shafts on opposing sides of the framework, with two output shafts perpendicular to the input shafts. Our mini 4 shaft worm gear drives deliver high effectiveness 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 boosts to 4,000 RPM
Miniature Flange Worm Gear 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 constructed with small footprints, making them perfect 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: 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 speeds up to 3,000 RPM. Aluminum housings and stainless steel gears and shafts make these inline spur gearboxes challenging 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 gear reducers deliver superior performance with high efficiency, and feature rugged construction for challenging power transfer procedures. 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 manufacture a custom miniature gearbox to meet up your unique specifications. We can produce custom micro gearboxes in virtually any configuration the application requires, with output torque amounts as high as 900Nm. We are able to work from your gearbox styles, reverse engineer an existing unit, or assist you to develop an all-new design that delivers the performance you need. Request a quote on a custom miniature gearbox or contact us to discuss your unique requirements.
The Ever-Power Advantage: Little 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 can be supplied to your specifications for just about any of our hollow bore miniature gearboxes. We provide a basic selection of one ended or double ended shafts to put together in these gearboxes. All gearbox shafts are given keys and retainer bands.
For P and PF series worm and wheel gearboxes use our P/PF gearbox shafts.
For Electronic series crossed axis helical gearboxes use our Electronic gearbox shafts.
For F series spur gearboxes, contact our application engineers to go over your particular needs.
We provide a broad selection of misalignment shaft couplings in in . and metric bore sizes. In . and metric precision floor shafts are available from stock.
Die-cast zinc housing – 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 range of ratios from 1:1 to 30:1
1:1, 2:1 and 2.8:1 are not self locking, all other ratios are.
Max. output torques: 2 Nm to 17 Nm
Hand operation only
Direct coupling between servo engine and worm gear is one of the essential strengths of EP worm gearmotors, which combine DC engine technology with exceptional strength and wear resistance. Engine and gearbox were created as one single, compact unit. Because of their reduced current attract, these gearmotors deliver more accurate control of operating 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 our flexible modular concept.
Based on this we are able to select a wide selection 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 house such as small dimensions or low weight with regards 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 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.
Compact gearboxes are high-quality gearboxes for regular drives. The electric electric motor is integrated with the gearbox into a single unit (the first gear is on the motor shaft). Individual gearboxes for link with conventional IEC motors can also be supplied on request.
Due to the complexity of the gearboxes’ configuration, they can not be purchased inside our e-shop. Our experts will be pleased to help you create your selection. We are happy to send out 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 steel options possible
Special wishes possible
Ever-Power worm gearboxes possess earned a popularity to be a business benchmark worldwide. Our achievement came from our relentless drive for quality with state-of-the-art technology, all while offering worm gearboxes are inexpensive prices. High versatility 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 edition, 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 swiftness gear ratio. Being basic 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 own body is normally quite lengthy in the axial path. The gears in these gearboxes could be right or left-handed dependant on the purpose.
Mounting option 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 will be the electro-mechanical key components for low backlash, smoothly running and highly dynamic drive systems.
Our high-performance gear models are designed to withstand the toughest commercial applications.
The gear housings are machined on all sides and permit diverse installation positions and applications, making them much sought after in the industry. Consequently our geared motors are often to be found within our customers own machines.
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 style in mixture with tooth helix angle, tooth depth, the materials used and surface finish maximizes load capacity. This high gearing capacity allows smaller tires to be utilized for the same torque, and smaller gears with exceptional power density can also increase reliability. Ever-Power geared motors are as a result incredible space savers.
Gearing produced with such micro-geometric accuracy allows the gearing play necessary 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 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 created for those more demanding applications where compact 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 input shaft and electric motor flange, and double reduction mixture units for slow rate applications. Using cast iron housings, high quality bronze alloy worm wheels and long life bearings, reliability and overall performance are the key features of this range.
High Precision Right Angle Transmission
Long Lifetime
WIDE RANGE Of Ratios
Special Surface Treatments

You could check out more regarding compact worm gearbox on our website.