worm wheel gearbox

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

Motor RPM required = 1 / (mins per rotation desired / 30)
Example: 1 / (10 minutes per rotation / 30) = 3 RPM motor needed to achieve ten minutes per rotation (in max speed)
Dimensions 3.43″ x 1.93″
Item Weight 5.9oz (0.375 lbs)
Output Shaft Diameter 3/8″ (0.375″)
Motor Size Compatibility Standard Spur Gear Motors

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

Ever-Power maintains the highest level of standard in manufacturing of worm gears in gearboxes. Right from the design of gearbox, materials selection to manufacturing practice of worm gear box and gear motor.

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 Models 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 short notice by customer.
Worm gearboxes are having cast iron gear case, worm shaft is of Alloy Steel, duly hardened and tempered. The worm wheel is constructed of Chill Cast Phosphorous Bronze.

Ever-Power worm equipment boxes possess liberal ribbing for increasing high temperature dissipation region, streamlined sump to carry more oil and lover of ample size which works well in both side of rotation.

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

High reduction gear
Worm and wheel gear pairings provide large acceleration reduction ratios with only one equipment pairing in a far more compact space when compared with other styles of gears. You can expect up to a maximum ratio of 100:1 with our products. Another benefit of the Worm and Wheel equipment pairings may be the low level noise they produce. Some drawbacks are the general low effectiveness and the actual fact that they generate temperature.

Benefit 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 because of fact that the metallic fibrous structure is not cut.

2) The top hardness after chilly rolling is increased by 1.2 to 1 1.3 times when compared with the hardness of the original materials, and the hardness of the helicoid surface increases to around HB240 to 260.

3) Chilly rolled worms are suitable for miniature gear applications since this could be rotated smoothly without damaging the worm wheels crafted from POM or other soft materials.

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

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

Such as 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 turn (360 degrees) of the worm advances the gear by one tooth. So a gear with 24 teeth provides a gear reduction of 24:1. For a multi-begin worm, the apparatus reduction equals the number of teeth on the gear, divided by the amount of starts on the worm. (That is different from most other types of gears, where in fact the gear reduction is certainly a function of the diameters of the two components.)
The meshing of the worm and the apparatus 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 efficiency of worm gears to 30 to 50 percent. To be able to minimize friction (and therefore, warmth), the worm and equipment are made from dissimilar metals – for instance, the worm may be made of hardened steel and the gear made of bronze or aluminum.

Although the sliding contact decreases efficiency, it provides extremely quiet operation. (The use of dissimilar metals for the worm and gear also plays a part in quiet procedure.) This makes worm gears suitable for use where noise should be minimized, such as for example in elevators. Furthermore, the use of a softer material for the gear means that it can absorb shock loads, like those experienced in heavy equipment or crushing machines.

The primary benefit of worm gears is their ability to provide high reduction ratios and correspondingly high torque multiplication. They may also be used as speed reducers in low- to medium-rate applications. And, because their reduction ratio is based on the number of gear teeth only, they are more compact than other styles of gears. Like fine-pitch business lead screws, worm gears are typically self-locking, which makes them perfect 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 rate reduction in a restricted space using right angle (90°), non-intersecting shafts. When properly applied, worms and worm gears provide the smoothest, quietest type of gearing.

Because the performance of a worm equipment drive depends upon the business lead angle and quantity of begins 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 used together must have the same diametral pitch and threads.

Our complete type of worms and worm gears could be ordered through the EP Equipment Guaranteed Same Time Shipment Plan for the fastest delivery possible.
Product Features
90°, non-intersecting shaft applications answer highly specialized power transmitting needs.
Our worm gears provide smoothest, quietest form of gearing.
They provide high-ratio speed reduction in minimal spaces.
Their efficiency is easily increased by decreasing ratios.
With some ratios, there is level of resistance to back driving.
Obtainable from 48 DP to 3 DP
Stocked as single, dual and quad start configurations

How to Select High Efficient Worm Gearbox?
The worm gear manufacturing process is also relatively simple. Nevertheless, there exists a low transmission effectiveness problem if you don’t understand the how to select the worm gearbox. 3 basic point to choose high worm gear efficiency that you ought to know:

1) Helix angle. The worm gear drive efficiency mostly depend on the helix position of the worm. Generally, multiple thread worms and gears is definitely more efficient than one thread worms. Proper thread worms can increase effectiveness.

2) Lubrication. To choose a brand lubricating essential oil can be an essential factor to improve worm gearbox performance. As the correct lubrication can reduce worm equipment action friction and high temperature.

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

From a huge transmission gearbox power to a straight small worm gearbox load, you can choose one from an array of worm reducer that precisely fits your application requirements.

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

2) The installation must be solid and reliable.

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

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

By using the most advanced science and drive technology, we’ve developed several unique “square box” designed from high-quality aluminium die casting with a beautiful appearance. The modular worm gearbox design series: worm drive gearbox, parallel shaft gearbox, bevel helical gearbox, spiral bevel gearbox, coaxial gearbox, right angle gearbox. An NMRV series gearbox can be a typical worm gearbox with a bronze worm equipment and a worm. Our Helical gearbox products consists of four universal series (R/S/K/F) and a step-less acceleration variation UDL series. Their framework and function act like an NMRV worm gearbox.

In the EP worm gears, the output shaft is offset by 90° from the drive shaft. A double shaft for double-sided output or a cover for the short shaft end are elective as components. EP gearboxes have a high-quality, long-term synthetic lubricant based on polyethylene glycol, and are as a result maintenancefree. They are characterized by high efficiency and self-locking.

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

Worm Gear applications
Program of worm gears, which is comparable to a standard spur and the worm, which is a cylindrical equipment that resembles a screw, permits smaller gearboxes or planetary drives, whilst retaining torque or power. It is common for worm gears to have got reductions of 20:1, and actually up to 300:1 or greater.

Standard gearing includes the initial capability which additional gearing components don’t 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 carefully the zone stuck in position.

Committed to excellence, our employees possess the most crucial priority satisfying your gear building needs and product improvement.

Also, we take pride in our equipment; few producers have the equipment to engineer metallic parts as precise as we do. Actually fewer manufacturing businesses have the machining devices to check the tolerances we can hold.

Being a gearing producer to Automotive level companies, with a diverse supply of material types, allow all of us to achieve the most challenging project requirements. The combination of robust materials, advanced manufacturer technologies, reliability and our dedication to client satisfaction makes us a high provider in advanced gearing and shafting items.

Our gear manufacturing places have over two decades of worm gear design expertise, gained through many projects that included varied sizes of custom worm gears to print requirements.

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