ep

June 2, 2020

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 only minimizes backlash but also eliminates back-driving the gearmotor so a posture can be held even when power is not applied. The precision floor 3/8” stainless steel output shaft is supported by dual 3/8” ABEC 5 ball bearings to support lots from any orientation. The ¼” ABS plastic and light weight aluminum structure provides a rigid framework without adding unnecessary weight and is definitely easily installed to any flat surface by utilizing the bottom mounting tabs. Our Standard Spur Gear motors will continue to work with this gearbox (motor offered separately). The Vertical Shaft Worm-Drive Gearbox is perfect for turn-tables, time-lapse systems and low-rate 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 had a need to achieve 10 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 Regular Spur Gear Motors

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

Ever-Power maintains the best degree of standard in manufacturing of worm gears in gearboxes. Right from the look of gearbox, materials selection to manufacturing practice of worm equipment box and gear electric motor.

Models: 30, 40, 50, 60, 75, 85, 100, 125, 150, 175, 200, 250, 300, 350, 430
Ratio : 5/1 to 4900/1
Center 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 usually available in stock or can 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 made from Chill Cast Phosphorous Bronze.

Ever-Power worm equipment boxes have liberal ribbing for increasing heat dissipation region, streamlined sump for carrying more oil and lover of ample size which is effective in both aspect of rotation.

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

High reduction gear
Worm and wheel gear pairings provide large velocity decrease ratios with only 1 gear pairing in a more compact space when compared with other types of gears. You can expect up to maximum ratio of 100:1 with our products. Another benefit of the Worm and Wheel gear pairings may be the low level noise they produce. Some disadvantages will be the general low effectiveness and the fact that they generate warmth.

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 cold 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 frosty rolling is increased by 1.2 to 1 1.3 times in comparison to the hardness of the original materials, and the hardness of the helicoid surface increases to around HB240 to 260.

3) Cool rolled worms are ideal for miniature gear 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 technique, the helicoid surface area of EP-Worm (M0.5 to 2.0) comes out with a mirror like finish. Thus, EP-Precision Chilly Rolled Worms provide a smooth procedure and long term durability.

Worm gears are made of a worm and a equipment (sometimes known as a worm wheel), with nonparallel, non-intersecting shafts oriented 90 degrees to one another. The worm is analogous to a screw with a V-type thread, and the apparatus can be analogous to a spur equipment. The worm is normally the generating 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 an individual start or multiple starts – and therefore there are multiple threads, or helicies, on the worm. For a single-start worm, each full turn (360 degrees) of the worm increases the gear by one tooth. So a gear with 24 teeth provides a gear reduction of 24:1. For a multi-begin worm, the gear reduction equals the number of teeth on the apparatus, divided by the amount of begins on the worm. (That is different from almost every other types of gears, where in fact the gear reduction is usually a function of the diameters of both 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 effectiveness of worm gears to 30 to 50 percent. To be able to minimize friction (and therefore, warmth), the worm and gear are made from dissimilar metals – for instance, the worm may be made of hardened steel and the gear manufactured from bronze or aluminum.

Although the sliding contact reduces efficiency, it provides extremely quiet operation. (The utilization of dissimilar metals for the worm and gear also plays a part in quiet procedure.) This makes worm gears ideal for use where sound should be minimized, such as in elevators. Furthermore, the utilization of a softer materials for the gear means that it could absorb shock loads, like those skilled in large equipment or crushing devices.

The primary benefit of worm gears is their capability to provide high reduction ratios and correspondingly high torque multiplication. They can also be utilized as rate reducers in low- to medium-velocity applications. And, because their decrease ratio is founded on the number of gear teeth by itself, they are smaller sized than other types of gears. Like fine-pitch lead screws, worm gears are usually self-locking, which makes them well suited for hoisting and lifting applications.

Worms & Worm Gears
EP Gear’s worms and worm gears provide a highly effective answer for power transmission applications requiring high-ratio rate reduction in a limited space using right angle (90°), nonintersecting shafts. When properly used, worms and worm gears supply the smoothest, quietest kind of gearing.

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

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

How to Select High Efficient Worm Gearbox?
The worm gear production process can be relatively simple. However, there exists 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 need to know:

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

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

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

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

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

2) The installation must be solid and reliable.

3) Ensure that you verify the connection between the engine and the worm equipment reducer.

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

With the help of the most advanced science and drive technology, we have 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 is definitely a typical 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 rate 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 elective as add-ons. EP gearboxes come with a high-quality, long-term synthetic lubricant based on polyethylene glycol, and are consequently maintenancefree. They are seen as a high performance and self-locking.

Please note:
Due to their relatively high backlash (~1-2°), worm gears are not suitable for positioning applications.

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

Standard 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 gear 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 equipment building needs and product improvement.

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

Being a gearing producer to Automotive level businesses, with a diverse way to obtain material types, allow us to achieve the most challenging project requirements. The combination of robust components, advanced manufacturer technologies, reliability and our commitment to client satisfaction makes us a high provider in advanced gearing and shafting products.

Our gear manufacturing places have over twenty years of worm gear style knowledge, gained through many tasks that included varied sizes of custom made worm gears to print requirements.