compact worm gearbox

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Working with miniature gears, Ever-Power provides designed and built exclusive, high accuracy mini gearboxes that can’t be found anywhere else. Our miniature gearboxes can be found in numerous configurations, including worm and wheel, cross axis helical, bevel, inline spur, and more. We are able to also provide customized micro gearboxes that are designed and created to meet your specific specifications.
E mail us for the mini gearbox your application requires, or demand a quote upon a customized 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 known as reducers, gear reducers, rate reducers, equipment drives, and gearmotors. All terms can be used pretty much interchangeably. Please note that the inbound links for our little gear drives include info on the full selection of body sizes for that series or style.
Bevel Box Micro Gear Drive
Our bevel box miniature gear drives are software rated for the the best balance of functionality and charge. Torque can be balanced to meet your RPM and operating life requirements. Light-weight with low backlash efficiency (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 array: -5° to 175°F (-20° to 79°C); optional to -40°F (-40°C)
Cross Axis Helical Miniature Gearbox
Ever-Ability’ miniature cross axis helical gearboxes provide relatively excessive amounts of thrust in a compact package. They provide an output shaft at 90° from the input, and are available in equipment ratios from 1:1 to 40:1. Light in weight but long lasting, with machined aluminium housings and hardened alloy metal gears.
Excessive 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 minutes of backlash as well as better. Also called “shaft to bore gearboxes,” the unit provide a single insight shaft that protrudes from opposite sides of the housing; output is certainly a keyed bore. Regular single- and double-end shafts can be found and supplied with keys and retainer rings. An array of gear ratios and input sizes are readily available to meet up 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 lasting lubrication. They provide two insight shafts on opposing sides of the framework, with two output shafts perpendicular to the input shafts. Our mini 4 shaft worm equipment drives deliver high efficiency performance with low backlash.
Great 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 generate an output at 90° from the insight. They deliver superior performance in an amazing array applications and are constructed with little footprints, making them well suited for functions where space is limited. 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 can be found in two frame sizes, and so are rated for speeds up to 3,000 RPM. Aluminium housings and stainless steel gears and shafts help to make these inline spur gearboxes difficult 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 superior performance with substantial efficiency, and feature rugged structure for challenging power transfer operations. Available in three equipment ratios (5:1, 10:1, 20:1), our small 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 produce a customized miniature gearbox to meet your unique requirements. We can produce custom micro gearboxes in nearly any configuration your application requires, with result torque amounts as high as 900Nm. We can work from your gearbox designs, reverse engineer an existing unit, or help you develop an all-new style that delivers the performance you need. Request a quote on a customized miniature gearbox or e mail us to discuss your specific requirements.
The Ever-Power Advantage: Small is No Big Problem
Broadest collection of small gear reducers
Greased for life
Ruggedly built
Modifications and particular ratios available
Custom small gearboxes designed to suit
Input and also Output Shafts
Input and output shafts with drive important and retainer rings could be supplied to your specs for just about any of our hollow bore miniature gearboxes. We offer a basic assortment of one ended or dual ended shafts to assemble 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 E gearbox shafts.
For F series spur gearboxes, contact our program engineers to discuss your unique needs.
We provide a broad collection of misalignment shaft couplings in inch and metric bore sizes. In . and metric precision ground shafts are available 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 aren’t self locking, all other ratios are.
Max. output torques: 2 Nm to 17 Nm
Hand operation only
Direct coupling between servo motor and worm gear is among the crucial strengths of EP worm gearmotors, which incorporate DC electric motor technology with exceptional toughness and wear resistance. Engine and gearbox were created as you single, compact unit. Thanks to their reduced current pull, these gearmotors deliver even more accurate control of operating temperature and higher performance.
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
Huge 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 maybe without integrated linear lead screw / ball screw adapted to your flexible modular concept.
Based on this we can select a wide selection of common customizations to meet up the requirements of varied properties that are essential for each application.
If your application takes a gearbox with some special property such as for example small dimensions or low weight with regards to power, high efficiency, quiet and vibration-free operation, extended life, high resistance to vibration, force 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 an excellent start to be able to deliver a product that stands out on your side.
Small gearboxes are high-quality gearboxes for standard drives. The electric motor is included with the gearbox right into a single device (the first equipment is on the engine 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 experts will be pleased to help you create your selection. We will be pleased to send you documentation or design the right set directly, on ask for.
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 achievement originated from our relentless travel for top quality with state-of-the-art technology, all while offering worm gearboxes will be affordable prices. High flexibility accorded through a wide choice of mounting choices, shaft configurations and engine interfaces, causes the Ever-Power worm gearbox the default determination for the sector. The helical-worm and the double-worm edition, with or without the torque limiter, soon add up to the advantage, creating an extremely versatile drive system.
Ever-Electric power Worm gearboxes provide high torque with low velocity gear ratio. Being simple and compact in design, these gears can perform higher gear ratio compared to the helical gears. These worm decrease gears having screw type qualities are similar to helical gears, but its helix angle is typically comparatively bigger) and its own body is normally quite long in the axial direction. The gears in these gearboxes can be suitable or left-handed dependant on 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-Ability gearboxes and geared motors will be the electro-mechanical key components for low backlash, efficiently running and highly powerful drive systems.
Our high-performance gear products are designed to withstand the toughest industrial applications.
The gear housings are machined on all sides and invite diverse mounting positions and applications, producing them much popular in the industry. As a result 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 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 components used and surface finish maximizes load capacity. This excessive gearing capacity enables smaller tires to be utilized for the same torque, and smaller sized gears with exceptional power density can also increase reliability. Ever-Vitality geared motors are as a result incredible space savers.
Gearing manufactured with such micro-geometric precision allows the gearing enjoy required for troublefree rolling contact to be substantially decreased and therefore the gear backlash to become minimized.
Dual chamber shaft seals produced by Ever-Power are utilized as standard through parallel shaft, shaft mounted and helical worm gears for a higher level of tightness.
Ever-Power’s modular equipment technology meets certain requirements of advanced drive programs:
Excellent power density
Minimum backlash
Smooth running
Diverse mounting options
Maximum reliability
High variability
Precision Worm Gearboxes and also Geared Motors
EP’s precision worm gearboxes will be made for those more demanding applications where compact proportions, high torque, high ratio, low backlash, low sounds and long life time are required. Provided in 9 sizes, these worm gearboxes can be supplied with free input shaft, with hollow bore input shaft and engine flange, and double reduction mixture units for slow speed applications. By using cast iron housings, top quality bronze alloy worm tires and long life bearings, reliability and overall performance are the important features of this range.
High Precision Right Position Transmission
Long Lifetime
Wide Selection Of Ratios
Special Surface Treatments

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