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compact worm gearbox

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Applying miniature gears, Ever-Power offers designed and built exclusive, high precision mini gearboxes that cannot be found anywhere else. Our miniature gearboxes are available in numerous configurations, which includes worm and wheel, cross axis helical, bevel, inline spur, and extra. We can also provide custom micro gearboxes that are designed and built to meet your specific specifications.
E mail us for the mini gearbox your 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 Equipment 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, rate reducers, equipment drives, and gearmotors. All conditions can be used more or less interchangeably. Please note that the links for our little gear drives include info on the full selection of framework sizes for that series or style.
Bevel Box Micro Gear Drive
Our bevel container miniature gear drives are application rated for the maximum balance of performance and price. Torque can be balanced to meet your RPM and working life requirements. Light-weight with low backlash overall performance (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 boosts to 2,000 RPM
Temperature selection: -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 high amounts of thrust in a compact package. They provide an result shaft at 90° from the input, and are available in gear ratios from 1:1 to 40:1. Light and portable but durable, 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 or maybe better. Also known as “shaft to bore gearboxes,” the unit provide a single input shaft that protrudes from opposing sides of the housing; output can be a keyed bore. Common solitary- and double-end shafts can be found and supplied with keys and retainer bands. An array of gear ratios and input sizes are obtainable to meet your needs.
Substantial 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 steel gears, solid aluminium housings, and long lasting lubrication. They provide two insight shafts on opposite sides of the frame, with two output shafts perpendicular to the input shafts. Our mini 4 shaft worm equipment drives deliver high efficiency functionality with low backlash.
Excessive efficiency: up to 82% at 1,000 RPM
Low backlash: as little as ≈2°
Available with gear 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 produce an output at 90° from the insight. They deliver superior efficiency in a wide variety applications and are built with small footprints, making them well suited for procedures where space is bound. They offer high efficiency with low backlash.
Gear ratios from 6.66:1 to 80:1
Substantial efficiency: up to 83% at 1,000 RPM
Low backlash: as low as ≤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 steel gears and shafts help to make these inline spur gearboxes hard and corrosion tolerant, 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 show rugged structure for challenging power transfer operations. Available in three gear ratios (5:1, 10:1, 20:1), our compact 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 can engineer and manufacture a customized miniature gearbox to meet your unique technical specs. We can produce customized micro gearboxes in any configuration the application requires, with output torque levels as high as 900Nm. We can work from your gearbox designs, reverse engineer an existing unit, or assist you to develop an all-new style that provides the performance you will need. Request a quote on a custom miniature gearbox or contact 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 plus Output Shafts
Input and result shafts with drive key and retainer rings can be supplied to your specs for any of our hollow bore miniature gearboxes. We offer a basic range of single ended or double 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 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 software engineers to discuss your unique needs.
We provide a broad collection of misalignment shaft couplings through inch and metric bore sizes. ” and metric precision ground shafts are available from stock.
Die-cast zinc casing – 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 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
Direct coupling between servo engine and worm gear is among the key strengths of EP worm gearmotors, which combine DC electric motor technology with exceptional durability and wear resistance. Motor and gearbox are designed as one single, compact unit. Because of their reduced current pull, these gearmotors deliver extra accurate control of working 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
Substantial 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 as well as without integrated linear lead screw / ball screw adapted to your flexible modular concept.
Based in this we are able to select a wide selection of standard customizations to meet up the requirements of various properties that are essential for each application.
If your application requires a gearbox with some special house such as for example small dimensions or low weight with regards to electrical power, high efficiency, quiet and vibration-free operation, extended life, high level of resistance to vibration, pressure or temperature, integrated linear screw, or a combination of this kind of properties, our product range with an increase of than 1000 different standard gearboxes is most likely a good start to be able to deliver a product that stands out on your side.
Compact gearboxes are high-level of quality gearboxes for standard drives. The electric electric motor is integrated with the gearbox right 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.
Due to the complexity of the gearboxes’ configuration, they cannot be purchased inside our e-shop. Our experts will be happy to help you make your selection. We will be happy to send out you documentation or style a suitable 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 steel 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 level of quality with state-of-the-art technology, all and will be offering worm gearboxes happen to be affordable prices. High flexibility accorded through a wide choice of mounting choices, shaft configurations and electric motor interfaces, creates the Ever-Power worm gearbox the default choice for the sector. The helical-worm and the double-worm version, 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 quickness gear ratio. Being simple and compact in design, these gears can perform higher gear ratio than the helical gears. These worm reduction gears having screw type qualities are similar to helical gears, but its helix position is typically comparatively bigger) and its body is generally quite lengthy in the axial direction. The gears in these gearboxes could be correct or left-handed dependant on the purpose.
Mounting option include universal housing, side flanges, foot (horizontal and vertical), shaft mounted with torque arm. Available in Solid shafts (single or dual), with torque arm or torque limiter.
Top Quality Geared Motors. Ever-Electrical power gearboxes and geared motors will be the electro-mechanical key elements for low backlash, efficiently running and highly powerful drive systems.
Our high-performance gear devices are designed to withstand the toughest industrial applications.
The gear housings are machined on all sides and invite diverse installation positions and applications, producing them much sought after in the industry. Because of this 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 get in touch with under load.
The special tooth root design in combination with tooth helix angle, tooth depth, the materials used and surface finish maximizes load capacity. This large gearing capacity enables smaller wheels to be utilized for the same torque, and smaller sized gears with outstanding power density can also increase reliability. Ever-Electrical power geared motors are consequently incredible space savers.
Gearing manufactured with such micro-geometric precision allows the gearing enjoy required for troublefree rolling get in touch with to be substantially decreased and therefore the gear backlash to be minimized.
Dual chamber shaft seals developed by Ever-Power are used as standard during parallel shaft, shaft installed and helical worm gears for a high level of tightness.
Ever-Power’s modular gear technology meets the requirements of advanced drive programs:
Excellent power density
Minimum backlash
Smooth running
Diverse mounting options
Maximum reliability
High variability
Precision Worm Gearboxes plus Geared Motors
EP’s precision worm gearboxes happen to be designed for those more demanding applications where compact size, high torque, high ratio, low backlash, low sound and long lifetime are required. Offered in 9 sizes, these worm gearboxes could be supplied with free input shaft, with hollow bore input shaft and engine flange, and double decrease mixture units for slow rate applications. Implementing cast iron housings, top quality bronze alloy worm tires and long life bearings, reliability and performance are the crucial top features of this range.
High Precision Right Position Transmission
Long Lifetime
Wide Selection Of Ratios
Special Surface Treatments

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