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 only worm wheel gearbox minimizes backlash but also eliminates back-traveling the gearmotor so a posture can be held even when power is not applied. The precision surface 3/8” stainless steel result shaft is backed by dual 3/8” ABEC 5 ball bearings to aid a load from any orientation. The ¼” ABS plastic and aluminium structure offers a rigid framework without adding unnecessary weight and can be easily installed to any flat surface by utilizing the base mounting tabs. Our Regular Spur Gear motors will continue to work with this gearbox (engine marketed separately). The Vertical Shaft Worm-Drive Gearbox is ideal for turn-tables, time-lapse systems and low-speed applications that want high precision and torque.

Motor RPM required = 1 / (moments per rotation desired / 30)
Example: 1 / (ten minutes per rotation / 30) = 3 RPM motor had a need 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 Standard Spur Gear Motors

Ever-Power offers you the widest range of standard, non standard and customised worm gearbox and worm gear motor.

Ever-Power maintains the best degree of standard in production of worm gears in gearboxes. From the design of gearbox, material selection to manufacturing practice of worm equipment 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 obtainable 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 equipment boxes possess liberal ribbing for increasing heat dissipation region, streamlined sump for carrying more oil and enthusiast of ample size which is effective in both part of rotation.

Design Standards:
Wherever applicable, British in addition to 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 swiftness decrease ratios with only one equipment pairing in a more compact space in comparison to other styles of gears. You can expect up to maximum ratio of 100:1 with our products. Another benefit of the Worm and Wheel equipment pairings is the low level noise they produce. Some drawbacks will be the general low efficiency and the fact that they generate heat.

Benefit of EP’s Worm Gears – “Cool rolled Worm Gears”
1) The hardness of the helicoid surface area has been attained by function hardening when the cool rolling was performed, providing Worm gears with better mechanical properties than machined worms because of reality that the metallic fibrous structure is not cut.

2) The top hardness after frosty rolling is increased by 1.2 to at least one 1.3 times in comparison to the hardness of the initial material, and the hardness of the helicoid surface area increases to around HB240 to 260.

3) Cold rolled worms are suitable for miniature equipment applications since this is often rotated smoothly without damaging the worm wheels made out of POM or various other soft materials.

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

Worm gears are constructed of a worm and a gear (sometimes known as a worm wheel), with non-parallel, nonintersecting shafts oriented 90 degrees to each other. The worm is certainly analogous to a screw with a V-type thread, and the apparatus can be analogous to a spur equipment. The worm is normally 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 – and therefore there are multiple threads, or helicies, on the worm. For a single-start worm, each complete convert (360 degrees) of the worm advances the gear by one tooth. So 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 an assortment of sliding and rolling actions, but sliding contact dominates at high reduction ratios. This sliding actions causes friction and high temperature, which limits the effectiveness of worm gears to 30 to 50 percent. To be able to minimize friction (and for that reason, high temperature), the worm and gear are made of dissimilar metals – for instance, the worm may be made of hardened metal and the gear manufactured from bronze or aluminum.

Although the sliding contact reduces efficiency, it provides very quiet operation. (The usage of dissimilar metals for the worm and gear also contributes to quiet procedure.) This makes worm gears suitable for use where noise should be minimized, such as in elevators. In addition, the use of a softer materials for the gear means that it could absorb shock loads, like those skilled in heavy equipment or crushing devices.

The primary benefit of worm gears is their capability to provide high reduction ratios and correspondingly high torque multiplication. They may also be used as speed reducers in low- to medium-speed applications. And, because their decrease ratio is based on the number of gear teeth by itself, they are more compact than other styles of gears. Like fine-pitch business lead screws, worm gears are usually self-locking, making them well suited for hoisting and lifting applications.

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

Because the effectiveness of a worm equipment drive depends upon the business lead angle and number of starts on the worm – and because increased effectiveness is always a goal, the ratio should be kept as low as possible. To run properly, worms and worm gears used together will need to have the same diametral pitch and threads.

Our complete type of worms and worm gears could be ordered through the EP Gear Guaranteed Same Day time Shipment System for the fastest delivery possible.
Product Features
90°, nonintersecting shaft applications answer highly specialized power transmitting needs.
Our worm gears provide smoothest, quietest form of gearing.
They provide high-ratio speed decrease 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, dual and quad start configurations

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

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

2) Lubrication. To select a brand lubricating essential oil can be an essential factor to boost worm gearbox efficiency. As the correct lubrication can decrease worm equipment action friction and high temperature.

3) Material selection and Gear Manufacturing Technology. For worm shaft, the material ought to be hardened metal. The worm gear material ought to be aluminium bronze. By reducing the worm equipment hardness, the friction on the worm teeth is decreased. In worm manufacturing, to use the specific machine for gear slicing and tooth grinding of worms can also increase worm gearbox performance.

From a large transmission gearbox power to an even small worm gearbox load, you can choose one from a wide range of worm reducer that precisely fits your application requirements.

Worm Gear Box Assembly：
1) You may complete the set up in six various ways.

2) The installation should be solid and reliable.

3) Make sure to check the connection between the electric motor and the worm equipment reducer.

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

By using the innovative 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 typical worm gearbox with a bronze worm equipment 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 framework 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 double shaft for double-sided result or a cover for the short shaft end are elective as add-ons. EP gearboxes have a high-quality, long-term synthetic lubricant based on polyethylene glycol, and are as a result maintenancefree. They are seen as a high efficiency and self-locking.

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

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

Common gearing includes the unique capability which other 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 real reason for 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 constantly in place.

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

Also, we consider pride inside our equipment; few manufacturers have the gear to engineer metal parts as precise as we do. Also fewer manufacturing businesses have the machining equipment to check on the tolerances we are able to hold.

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

Our gear manufacturing locations have over two decades of worm gear style experience, gained through many tasks that included varied sizes of custom made worm gears to print requirements.