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March 18, 2020

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Using miniature gears, Ever-Power has designed and built exclusive, high accuracy mini gearboxes that can’t be found anywhere else. Our miniature gearboxes are available in numerous configurations, including worm and wheel, cross axis helical, bevel, inline spur, and even more. We are able to also provide custom micro gearboxes that were created and created to meet your unique specifications.
Contact us for the mini gearbox the application requires, or request a quote on 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 Velocity Reducers
Inline Spur
Compact Worm
Compact Worm
Micro Gearbox Options
Gearboxes are also called reducers, gear reducers, rate reducers, equipment drives, and gearmotors. All conditions can be used more or less interchangeably. Please note that the backlinks for our small gear drives include information on the full selection of frame sizes for that series or style.
Bevel Box Micro Gear Drive
Our bevel package miniature equipment drives are application rated for the the best balance of functionality and charge. Torque could be balanced to meet up your RPM and operating life requirements. Light-weight with low backlash functionality (less than 1°, with choice 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 assortment: -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 substantial levels of thrust in a concise package. They provide an result shaft at 90° from the input, and so are available in equipment ratios from 1:1 to 40:1. Light in weight but long lasting, with machined light weight aluminum housings and hardened alloy steel gears.
Large 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 moments of backlash or perhaps better. Also known as “shaft to bore gearboxes,” the unit provide a single insight shaft that protrudes from reverse sides of the housing; output is usually a keyed bore. Regular one- and double-end shafts can be found and given keys and retainer bands. An array of equipment ratios and insight sizes are readily available to meet up your needs.
Substantial 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 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 long lasting lubrication. They offer two input shafts on opposing sides of the frame, with two result shafts perpendicular to the input shafts. Our mini 4 shaft worm gear drives deliver high performance overall performance with low backlash.
Great efficiency: up to 82% at 1,000 RPM
Low backlash: less than ≈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 generate an output at 90° from the insight. They deliver superior performance in an amazing array applications and are built with little footprints, making them well suited for functions where space is limited. They offer high efficiency with low backlash.
Gear ratios from 6.66:1 to 80:1
Excessive 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
Specially engineered for encoder applications, Ever-Power micro inline spur gear drives are available in two frame sizes, and so are rated for boosts to 3,000 RPM. Aluminum housings and stainless steel gears and shafts help to make these inline spur gearboxes challenging and corrosion resilient, for your many demanding applications.
Result 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 equipment reducers deliver superior performance with excessive efficiency, and show rugged structure for challenging power transfer functions. Available in three equipment ratios (5:1, 10:1, 20:1), our small worm gearboxes are built 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 produce a custom miniature gearbox to meet up your unique features. 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 an existing unit, or help you develop an all-new design that delivers the performance you need. Demand a quote on a custom miniature gearbox or e mail us to discuss your specific requirements.
The Ever-Power Advantage: Little is No Big Problem
Broadest collection of small gear reducers
Greased for life
Ruggedly built
Modifications and particular ratios available
Custom small gearboxes made to suit
Input & Output Shafts
Input and output shafts with drive important and retainer rings can be supplied to your specs for just about any of our hollow bore miniature gearboxes. We provide a basic assortment of single ended or dual ended shafts to put together in these gearboxes. All gearbox shafts are given keys and retainer rings.
For P and PF series worm and wheel gearboxes use our P/PF gearbox shafts.
For E 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 selection of misalignment shaft couplings in inch and metric bore sizes. Inch and metric precision ground shafts can be found from stock.
Die-cast zinc casing – Various models for hands 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 aren’t self locking, all the ratios are.
Max. output torques: 2 Nm to 17 Nm
Hand operation only
Direct coupling between servo motor and worm gear is among the important strengths of EP worm gearmotors, which merge DC engine technology with exceptional sturdiness and wear resistance. Motor and gearbox were created as one single, compact unit. Thanks to their reduced current pull, these gearmotors deliver even more accurate control of operating 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 Selection 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 with this we can select a wide selection of standard customizations to meet up the requirements of varied properties that are important for each application.
If your application requires a gearbox with some special property such as for example small dimensions or low weight in relation to electrical 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 an increase of than 1000 different standard gearboxes is probably an excellent start to have the ability to deliver something that stands out in your favor.
Small gearboxes are high-top quality gearboxes for regular drives. The electric motor is built-in with the gearbox right into a single device (the first equipment is directly on the engine shaft). Separate gearboxes for connection to conventional IEC motors can also be supplied on request.
Due to the complexity of the gearboxes’ configuration, they cannot be purchased in our e-shop. Our experts will be pleased to help you create your selection. We will be happy to send you documentation or design the right set directly, on request.
VANE MOTORS WITH GEARBOXES
Combinations feasible with all our vane motors
Coaxial gearbox
Planetary gearbox
Worm gearbox
ATEX combinations possible
Stainless options possible
Special wishes possible
Ever-Power worm gearboxes have earned a reputation to be a business benchmark worldwide. Our success came from our relentless travel for level of quality with state-of-the-art technology, all while offering worm gearboxes are affordable prices. High versatility accorded through a wide choice of mounting choices, shaft configurations and electric motor interfaces, would make the Ever-Power worm gearbox the default decision for the industry. The helical-worm and the double-worm version, with or without the torque limiter, soon add up to the advantage, creating a highly versatile drive system.
Ever-Electric power Worm gearboxes provide large torque with low acceleration gear ratio. Being basic and compact in design, 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 bigger) and its own body is generally quite lengthy in the axial direction. The gears in these gearboxes can be ideal or left-handed dependant on the purpose.
Mounting option include universal housing, aspect flanges, foot (horizontal and vertical), shaft mounted with torque arm. Obtainable in Solid shafts (single or dual), with torque arm or torque limiter.
EXCELLENT Geared Motors. Ever-Ability gearboxes and geared motors will be the electro-mechanical key components for low backlash, easily running and highly dynamic drive systems.
Our high-performance gear models are built to withstand the toughest industrial applications.
The gear housings are machined on all sides and permit diverse installation positions and applications, producing them much popular in the industry. Consequently our geared motors are often to be found as part of 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 backed simply by FEM (Finite Element Method). This tooth geometry ensures optimum rolling get in touch with under load.
The special tooth root style in mixture with tooth helix angle, tooth depth, the components used and surface finish maximizes load capacity. This great gearing capacity enables smaller tires to be used for the same torque, and smaller sized gears with remarkable power density also increase reliability. Ever-Ability geared motors are consequently incredible space savers.
Gearing produced with such micro-geometric precision allows the gearing perform necessary for troublefree rolling contact to be substantially decreased and therefore the equipment backlash to end up being minimized.
Dual chamber shaft seals developed 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 gear 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 are designed for those more demanding applications where small proportions, 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 electric motor flange, and double decrease mixture units for slow swiftness applications. By using cast iron housings, top quality bronze alloy worm tires and extended life bearings, reliability and performance are the essential top features of this range.
High Precision Right Position Transmission
Long Lifetime
WIDE RANGE Of Ratios
Special Surface Treatments

See just what our expertise in Compact Worm Gearbox can do for you by seeing us at https://www.ever-power.net/product/compact-worm-gearbox/.