compact worm gearbox

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Using miniature gears, Ever-Power provides designed and built unique, high precision 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 more. We are able to also provide customized micro gearboxes that are designed and built to meet your specific specifications.
Contact us for the mini gearbox the application requires, or request a quote upon a custom 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 Quickness Reducers
Inline Spur
Compact Worm
Compact Worm
Micro Gearbox Options
Gearboxes are also known as reducers, gear reducers, speed reducers, equipment drives, and gearmotors. All terms can be used more or less interchangeably. Please be aware that the backlinks for our little gear drives include information on the full range of framework sizes for that series or design.
Bevel Box Micro Equipment Drive
Our bevel box miniature equipment drives are software rated for the the best possible balance of overall performance and price. Torque could be balanced to meet up your RPM and working life requirements. Lightweight with low backlash overall performance (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 vary: -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 excessive amounts of thrust in a concise package. They provide an output 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 light weight aluminum housings and hardened alloy steel gears.
Substantial 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 moments of backlash or better. Also called “shaft to bore gearboxes,” the unit provide a single input shaft that protrudes from reverse sides of the housing; output is certainly a keyed bore. Common one- and double-end shafts are available and supplied with keys and retainer bands. An array of gear ratios and input sizes are available to meet up 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 speeds up 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 body, with two result shafts perpendicular to the input shafts. Our mini 4 shaft worm gear drives deliver high effectiveness functionality with low backlash.
Huge 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 speeds up to 4,000 RPM
Miniature Flange Worm Equipment Drive
These micro flange worm gearboxes generate an output at 90° from the input. They deliver superior efficiency in a wide variety applications and are built with little footprints, making them perfect for procedures where space is bound. They offer high effectiveness with low backlash.
Gear ratios from 6.66:1 to 80:1
Excessive 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 so are rated for speeds up to 3,000 RPM. Aluminum housings and stainless gears and shafts generate these inline spur gearboxes hard and corrosion tolerant, for your many demanding applications.
Output torque: up to 125 oz.-inches
Low backlash: as little as 15 arc minutes
Available with equipment ratios from 4.96:1 to 3600:1
Optional synchro cleats available
Compact Wormwheel Gearbox
These miniature right angle worm gear reducers deliver excellent performance with substantial efficiency, and show rugged structure for challenging power transfer functions. Available in three gear 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 custom miniature gearbox to meet up your unique specs. We can produce custom micro gearboxes in any configuration your application requires, with result torque amounts as high as 900Nm. We are able to work from your own gearbox designs, reverse engineer a preexisting unit, or help you develop an all-new style that provides the performance you need. Ask for a quote on a custom made miniature gearbox or contact 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 unique ratios available
Custom small gearboxes made to suit
Input & Output Shafts
Input and result shafts with drive key and retainer rings can be supplied to your specifications for any of our hollow bore miniature gearboxes. We provide a basic option of one ended or dual 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 make use of our P/PF gearbox shafts.
For E series crossed axis helical gearboxes use our Electronic 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 for inch and metric bore sizes. In . and metric precision floor shafts are available 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 other ratios are.
Max. output torques: 2 Nm to 17 Nm
Hand operation only
Direct coupling between servo electric motor and worm gear is among the important strengths of EP worm gearmotors, which incorporate DC electric motor technology with exceptional durability and wear resistance. Engine and gearbox were created as one single, compact unit. Because of their reduced current attract, these gearmotors deliver considerably 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 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 at this we can select a wide variety of regular customizations to meet the requirements of varied 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 ability, high efficiency, quiet and vibration-free operation, long life, high resistance to vibration, tension or temperature, integrated linear screw, or a combination of such properties, our item range with more 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-level of quality gearboxes for standard drives. The electric motor is included with the gearbox right into a single unit (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 cannot be purchased inside our e-shop. Our specialists will be happy to help you create your selection. We will be happy to send you documentation or design the right 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 steel options possible
Special wishes possible
Ever-Power worm gearboxes possess earned a reputation to be a business benchmark worldwide. Our success originated from our relentless drive for 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 motor interfaces, would make the Ever-Electricity worm gearbox the default personal preference for the sector. The helical-worm and the double-worm version, with or without the torque limiter, add up to the advantage, creating an extremely versatile drive system.
Ever-Electricity Worm gearboxes provide great torque with low velocity 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 act like helical gears, but its helix position is typically comparatively larger) and its body is normally quite long in the axial direction. The gears in these gearboxes can be best or left-handed depending upon the purpose.
Mounting choice include universal housing, side flanges, foot (horizontal and vertical), shaft mounted with torque arm. Obtainable 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 elements for low backlash, easily running and highly dynamic drive systems.
Our high-performance gear models are built to withstand the toughest commercial applications.
The gear housings are machined on all sides and permit diverse mounting positions and applications, producing 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 backed 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 excessive gearing capacity enables smaller wheels to be used for the equal torque, and smaller gears with remarkable power density also increase reliability. Ever-Ability geared motors are therefore incredible space savers.
Gearing produced with such micro-geometric precision allows the gearing play required for troublefree rolling get in touch with to be substantially decreased and therefore the gear backlash to be minimized.
Double chamber shaft seals produced by Ever-Power are utilized as standard on parallel shaft, shaft installed and helical worm gears for a high level of tightness.
Ever-Power’s modular gear technology meets certain requirements of advanced drive devices:
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 will be created 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 can be supplied with free insight shaft, with hollow bore insight shaft and engine flange, and double reduction mixture units for slow velocity applications. Using cast iron housings, top quality bronze alloy worm wheels and long life bearings, reliability and functionality are the crucial top features of this range.
High Precision Right Position Transmission
Long Lifetime
WIDE RANGE Of Ratios
Special Surface Treatments

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