compact worm gearbox

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Using miniature gears, Ever-Power offers designed and built exclusive, high precision mini gearboxes that cannot be found anywhere else. Our miniature gearboxes can be found in numerous configurations, which includes worm and wheel, cross axis helical, bevel, inline spur, and more. We are able to also provide custom micro gearboxes that were created and built to meet your specific specifications.
Contact us for the mini gearbox the application requires, or request 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 Quickness Reducers
Inline Spur
Compact Worm
Compact Worm
Micro Gearbox Options
Gearboxes are also known as reducers, gear reducers, swiftness reducers, equipment drives, and gearmotors. All conditions can be used pretty much interchangeably. Please note that the links for our small gear drives include details on the full selection of body sizes for that series or style.
Bevel Box Micro Gear Drive
Our bevel container miniature equipment drives are software rated for the the best possible balance of functionality and cost. Torque could be balanced to meet up your RPM and operating life requirements. Light-weight with low backlash efficiency (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 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 concise package. They provide an output shaft at 90° from the input, and are obtainable in gear ratios from 1:1 to 40:1. Lightweight but long lasting, with machined aluminium 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 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,” these devices provide a single insight shaft that protrudes from reverse sides of the casing; output can be a keyed bore. Standard one- and double-end shafts are Compact Worm Gearbox Available and given keys and retainer rings. 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 metal gears, solid aluminium housings, and permanent lubrication. They provide two insight shafts on reverse sides of the framework, with two output shafts perpendicular to the insight shafts. Our mini 4 shaft worm equipment drives deliver high performance efficiency with low backlash.
High 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 create an output at 90° from the insight. They deliver superior functionality in an amazing array applications and are built with little footprints, making them perfect for functions 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
Specially 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 gears and shafts make these inline spur gearboxes hard 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 equipment reducers deliver superior performance with high efficiency, and show rugged building for challenging power transfer procedures. Available in three equipment 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
Small footprint: 1.5” x 1.5” x 1.08”
Custom Miniature Gearbox
Ever-Power may engineer and produce a customized miniature gearbox to meet up your unique specs. We can produce custom micro gearboxes in virtually any configuration the application requires, with output torque levels as high as 900Nm. We are able to work from your gearbox designs, reverse engineer a preexisting unit, or help you develop an all-new style that delivers the performance you will need. Demand a quote on a custom made 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 special ratios available
Custom small gearboxes designed to suit
Input & Output Shafts
Input and output shafts with drive important 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 single ended or double ended shafts to assemble 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 Electronic gearbox shafts.
For F series spur gearboxes, contact our application engineers to discuss your particular needs.
We provide a broad selection of misalignment shaft couplings in inch and metric bore sizes. ” and metric precision surface 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 among the essential strengths of EP worm gearmotors, which combine DC electric motor technology with exceptional sturdiness and wear resistance. Electric motor and gearbox are designed as one single, compact unit. Thanks to their reduced current pull, these gearmotors deliver 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 without integrated linear lead screw / ball screw adapted to our flexible modular concept.
Based on this we can select a wide selection 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 real estate 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, 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 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 electric motor is integrated with the gearbox into a single device (the first equipment is on the electric motor shaft). Separate 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 professionals will be happy to help you make your selection. We will be happy to send you documentation or design a suitable set directly, on demand.
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-art technology, all and will be offering worm gearboxes are inexpensive prices. High versatility accorded through a wide choice of mounting options, shaft configurations and motor interfaces, makes the Ever-Power worm gearbox the default choice for the market. The helical-worm and the double-worm version, with or without the torque limiter, add up to the advantage, creating a highly versatile drive system.
Ever-Power Worm gearboxes provide high torque with low acceleration gear ratio. Being simple and compact in design, these gears can achieve higher gear ratio compared to the helical gears. These worm reduction gears having screw type characteristics act like helical gears, but its helix angle is typically comparatively bigger) and its body is generally quite long in the axial path. The gears in these gearboxes can be right or left-handed depending upon the purpose.
Mounting choice include universal housing, part 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-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 systems are designed to withstand the toughest commercial applications.
The gear housings are machined on all sides and permit diverse installation positions and applications, producing them much sought after in the industry. Because of this 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 simply by FEM (Finite Element Method). This tooth geometry ensures optimum rolling get in touch with under load.
The special tooth root style in combination with tooth helix angle, tooth depth, the materials used and surface finish maximizes load capacity. This high gearing capacity enables smaller tires to be used for the same torque, and smaller gears with excellent power density can also increase reliability. Ever-Power geared motors are as a result incredible space savers.
Gearing manufactured with such micro-geometric accuracy allows the gearing play required for troublefree rolling get in touch with to be substantially reduced and therefore the gear backlash to end up being minimized.
Double chamber shaft seals produced by Ever-Power are utilized as regular in parallel shaft, shaft mounted 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 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 insight shaft, with hollow bore input shaft and engine flange, and double decrease combination units for slow acceleration 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 Position Transmission
Long Lifetime
WIDE RANGE Of Ratios
Special Surface Treatments

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