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This gearbox utilizes a 30:1 ratio worm-drive reduction for applications that want extremely slow and smooth rotational motion. The worm-drive design not merely minimizes backlash but also eliminates back-generating the gearmotor so a position can be held even when power is not applied. The precision floor 3/8” stainless steel result shaft is backed by dual 3/8” ABEC 5 ball bearings to aid lots from any orientation. The ¼” ABS plastic and aluminium structure provides a rigid framework without adding unnecessary weight and is usually easily installed to any flat surface by utilizing the base mounting tabs. Our Standard Spur Gear motors will continue to work with this gearbox (engine offered separately). The Vertical Shaft Worm-Drive Gearbox is ideal for turn-tables, time-lapse systems and low-rate applications that require high precision and torque.

Motor RPM required = 1 / (a few worm wheel gearbox minutes per rotation desired / 30)
Example: 1 / (ten minutes per rotation / 30) = 3 RPM motor needed to achieve ten minutes per rotation (in max speed)
Dimensions 3.43″ x 1.93″
Product Weight 5.9oz (0.375 lbs)
Output Shaft Diameter 3/8″ (0.375″)
Motor Size Compatibility Regular Spur Gear Motors

Ever-Power gives you the widest selection of standard, non regular and customised worm gearbox and worm gear motor.

Ever-Power maintains the highest degree of standard in manufacturing of worm gears in gearboxes. Right from the look of gearbox, material selection to production practice of worm gear box and gear engine.

Models: 30, 40, 50, 60, 75, 85, 100, 125, 150, 175, 200, 250, 300, 350, 430
Ratio : 5/1 to 4900/1
Middle Distances : 40 mm to 400 mm
Single stage / Double stage
Small Worm Gearbox Versions like C.D. 50, 60, 75, 85, 100 mm and Ratio 30/1 or 40/1 are often available in stock or could be made on brief notice by customer.
Worm gearboxes are having cast iron equipment case, worm shaft is of Alloy Steel, duly hardened and tempered. The worm wheel is made of Chill Cast Phosphorous Bronze.

Ever-Power worm gear boxes have liberal ribbing for increasing warmth dissipation region, streamlined sump for carrying more oil and fan of ample size which is effective in both part of rotation.

Design Standards:
Wherever applicable, British and also Indian Design standards are used. Worm Shafts comply with case- hardening Alloy Steels, Worm Wheels conform to phosphorous-bronze according to BS 1400, While Gear case conforms to C.I. Grade 20, IS210.

High reduction gear
Worm and wheel gear pairings provide large speed decrease ratios with only 1 equipment pairing in a far more compact space in comparison to other styles of gears. You can expect up to maximum ratio of 100:1 with our products. Another advantage of the Worm and Wheel gear pairings may be the low level sound they produce. Some drawbacks will be the general low efficiency and the actual fact that they generate warmth.

Advantage of EP’s Worm Gears – “Cool rolled Worm Gears”
1) The hardness of the helicoid surface area has been achieved by function hardening when the frosty rolling was performed, providing Worm gears with better mechanical properties than machined worms due to fact that the metallic fibrous framework is not cut.

2) The top hardness after chilly rolling is increased by 1.2 to at least one 1.3 times when compared with the hardness of the original materials, and the hardness of the helicoid surface area increases to around HB240 to 260.

3) Frosty rolled worms are ideal for miniature equipment applications since this can be rotated smoothly without damaging the worm wheels crafted from POM or various other soft materials.

4) Because of the implementation of this cold rolling method, the helicoid surface area of EP-Worm (M0.5 to 2.0) comes away with a mirror like finish. Thus, EP-Precision Chilly Rolled Worms provide a smooth operation and long-term durability.

Worm gears are constructed of a worm and a gear (sometimes referred to as a worm wheel), with non-parallel, nonintersecting shafts oriented 90 degrees to one another. The worm is usually analogous to a screw with a V-type thread, and the gear is certainly analogous to a spur gear. The worm is typically the traveling component, with the worm’s thread advancing the teeth of the gear.

Like a ball screw, the worm in a worm gear may have a single start or multiple starts – meaning that there are multiple threads, or helicies, on the worm. For a single-start worm, each full switch (360 degrees) of the worm increases the equipment by one tooth. Therefore a gear with 24 teeth provides a gear reduced amount of 24:1. For a multi-start worm, the gear reduction equals the number of teeth on the gear, divided by the amount of begins on the worm. (That is different from most other types of gears, where the gear reduction is a function of the diameters of the two components.)
The meshing of the worm and the gear is a mixture of sliding and rolling actions, but sliding contact dominates at high reduction ratios. This sliding action causes friction and warmth, which limits the performance of worm gears to 30 to 50 percent. In order to minimize friction (and for that reason, temperature), the worm and gear are made from dissimilar metals – for instance, the worm may be made of hardened metal and the gear made of bronze or aluminum.

Although the sliding contact decreases efficiency, it provides extremely quiet operation. (The utilization of dissimilar metals for the worm and gear also contributes to quiet operation.) This makes worm gears suitable for use where noise should be minimized, such as for example in elevators. In addition, the utilization of a softer materials for the gear means that it could absorb shock loads, like those experienced in weighty equipment or crushing machines.

The primary advantage of worm gears is their capability to provide high reduction ratios and correspondingly high torque multiplication. They can also be used as acceleration reducers in low- to medium-acceleration applications. And, because their reduction ratio is based on the amount of gear teeth by itself, they are smaller sized than other types of gears. Like fine-pitch lead screws, worm gears are typically self-locking, which makes them ideal for hoisting and lifting applications.

Worms & Worm Gears
EP Gear’s worms and worm gears provide an effective answer for power transmission applications requiring high-ratio velocity reduction in a restricted space using right angle (90°), non-intersecting shafts. When properly applied, worms and worm gears provide the smoothest, quietest form of gearing.

Because the efficiency of a worm equipment drive depends on the business lead angle and amount of starts on the worm – and because increased efficiency is always an objective, the ratio should be kept as low as possible. To run properly, worms and worm gears utilized together must have the same diametral pitch and threads.

Our complete line of worms and worm gears can be ordered through the EP Gear Guaranteed Same Day time Shipment Plan for the quickest delivery possible.
Product Features
90°, nonintersecting shaft applications solution highly specialized power tranny needs.
Our worm gears provide smoothest, quietest form of gearing.
They offer high-ratio speed reduction in minimal spaces.
Their efficiency is easily increased by lowering ratios.
With some ratios, there is resistance to back driving.
Obtainable from 48 DP to 3 DP
Stocked as single, double and quad start configurations

How exactly to Select High Efficient Worm Gearbox?
The worm gear production process can be relatively simple. Nevertheless, there exists a low transmission efficiency problem if you don’t know the how to choose the worm gearbox. 3 basic indicate choose high worm gear efficiency that you need to know:

1) Helix angle. The worm equipment drive efficiency mostly rely on the helix position of the worm. Generally, multiple thread worms and gears is more efficient than single thread worms. Proper thread worms can increase efficiency.

2) Lubrication. To select a brand lubricating essential oil can be an essential factor to boost worm gearbox effectiveness. As the proper lubrication can reduce worm gear action friction and high temperature.

3) Material selection and Gear Manufacturing Technology. For worm shaft, the material should be hardened metal. The worm gear materials should be aluminium bronze. By reducing the worm equipment hardness, the friction on the worm tooth is reduced. In worm production, to use the specific machine for gear trimming and tooth grinding of worms can also increase worm gearbox effectiveness.

From a big transmission gearbox capacity to a straight small worm gearbox load, you can choose one from a wide variety of worm reducer that precisely suits your application requirements.

Worm Gear Package Assembly:
1) You can complete the set up in six different ways.

2) The installation must be solid and reliable.

3) Be sure to check the connection between your motor and the worm gear reducer.

4) You must make use of flexible cables and wiring for a manual set up.

By using the most advanced science and drive technology, we’ve developed several unique “square container” designed from high-quality aluminium die casting with a beautiful appearance. The modular worm gearbox style series: worm drive gearbox, parallel shaft gearbox, bevel helical gearbox, spiral bevel gearbox, coaxial gearbox, right angle gearbox. An NMRV series gearbox is usually a standard worm gearbox with a bronze worm gear and a worm. Our Helical gearbox product line consists of four universal series (R/S/K/F) and a step-less speed variation UDL series. Their structure and function are similar to an NMRV worm gearbox.

In the EP worm gears, the output shaft is offset by 90° from the drive shaft. A dual shaft for double-sided output or a cover for the brief shaft end are optionally available as add-ons. EP gearboxes come with a high-quality, long-term synthetic lubricant on the basis of polyethylene glycol, and are therefore maintenancefree. They are seen as a high performance and self-locking.

Please note:
Because of their relatively high backlash (~1-2°), worm gears aren’t ideal for positioning applications.

Worm Gear applications
Program of worm gears, which is comparable to a typical spur and the worm, which is a cylindrical gear that resembles a screw, allows for smaller gearboxes or planetary drives, whilst retaining torque or power. It’s quite common for worm gears to have got reductions of 20:1, and also up to 300:1 or greater.

Common gearing includes the initial capability which additional gearing components do not have – the “worm” can effortlessly spin the part, however the “gears” cannot maneuver and fully rotate the worm-zone.

What’s the reason behind this inability to rotate the gear-worm?

The angle isn’t deep enough on the worm, so when the apparatus attempts to rotate the worm, high frictional pressure between worm shaft and gear parts keep the zone stuck in position.

Focused on excellence, our employees possess the most crucial priority satisfying your gear building needs and item improvement.

Also, we take pride in our equipment; few producers have the gear to engineer steel parts as exact as we do. Also fewer manufacturing companies have the machining devices to check on the tolerances we are able to hold.

Being a gearing manufacturer to Automotive level companies, with a diverse way to obtain material types, allow all of us to achieve the most challenging project requirements. The combination of robust materials, advanced manufacturer technology, reliability and our dedication to customer satisfaction makes us a top supplier in advanced gearing and shafting items.

Our gear manufacturing places have over twenty years of worm gear design knowledge, gained through many projects that included varied sizes of customized worm gears to print requirements.