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 result shaft is supported by dual 3/8” ABEC 5 ball bearings to support a load from any orientation. The ¼” ABS plastic and light weight aluminum structure provides a rigid framework without adding unnecessary weight and is certainly easily installed to any flat surface by utilizing the base mounting tabs. Our Standard Spur Gear motors will work with this gearbox (motor marketed 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 / (ten minutes per rotation / 30) = 3 RPM motor needed 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 regular 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 often obtainable in stock or could be made on brief notice by customer.
Worm gearboxes are experiencing 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 gear boxes have liberal ribbing for increasing warmth dissipation region, streamlined sump to carry more oil and enthusiast 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. Grade 20, IS210.

High reduction gear
Worm and wheel equipment pairings provide large acceleration decrease ratios with only 1 equipment pairing in a far 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 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 has been attained by function hardening when the cold 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 surface hardness after cold rolling is increased by 1.2 to 1 1.3 times in comparison to the hardness of the initial material, and the hardness of the helicoid surface increases to around HB240 to 260.

3) Frosty 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 away with a mirror like complete. Thus, EP-Precision Frosty 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 usually analogous to a screw with a V-type thread, and the gear is certainly analogous to a spur equipment. The worm is typically 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 complete switch (360 degrees) of the worm advances the gear by one tooth. Therefore a gear with 24 teeth will provide a gear reduction of 24:1. For a multi-start worm, the gear reduction equals the amount of teeth on the gear, divided by the amount of begins on the worm. (That is different from most other types of gears, where in fact the gear reduction is definitely 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 temperature, which limits the performance of worm gears to 30 to 50 percent. To be able to minimize friction (and therefore, warmth), the worm and equipment are constructed with dissimilar metals – for instance, the worm may be made of hardened steel and the gear made of bronze or aluminum.

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

The primary benefit 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-velocity applications. And, because their reduction ratio is founded on the number of gear teeth alone, they are more compact than other types of gears. Like fine-pitch lead screws, worm gears are typically 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 acceleration reduction in a restricted space using right angle (90°), nonintersecting shafts. When properly applied, worms and worm gears supply the smoothest, worm wheel gearbox quietest kind of gearing.

Because the effectiveness of a worm gear drive depends on the business lead angle and quantity of starts on the worm – and because increased performance is always a goal, the ratio ought to be kept only possible. To run correctly, worms and worm gears utilized 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 Equipment Guaranteed Same Time Shipment Program for the quickest delivery possible.
Product Features
90°, nonintersecting shaft applications solution highly specialized power transmission needs.
Our worm gears provide smoothest, quietest kind 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.
Obtainable from 48 DP to 3 DP
Stocked as single, double and quad start configurations

How to Select High Efficient Worm Gearbox?
The worm gear manufacturing process is also relatively simple. However, there exists a low transmission efficiency problem in the event that you don’t know 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 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 essential oil is an essential factor to improve worm gearbox efficiency. As the correct lubrication can reduce worm equipment action friction and high temperature.

3) Material selection and Gear Manufacturing Technology. For worm shaft, the material should be hardened steel. 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 specific machine for gear cutting and tooth grinding of worms also can increase worm gearbox performance.

From a sizable 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 Container 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 electric motor and the worm equipment reducer.

4) You must use 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 lovely 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 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 swiftness 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 add-ons. EP gearboxes have a high-quality, long-term synthetic lubricant on the basis of polyethylene glycol, and so are as a result 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 suitable for positioning applications.

Worm Gear applications
Software 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 even up to 300:1 or greater.

Normal gearing includes the initial capability which additional gearing components don’t have – the “worm” can effortlessly spin the part, however the “gears” are not able to 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 the zone stuck in position.

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

Also, we consider pride inside our equipment; few manufacturers have the equipment to engineer steel parts as specific as we do. Even fewer manufacturing companies have the machining gear 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 all of us to attain the most challenging task requirements. The combination of robust components, advanced manufacturer systems, 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 design knowledge, gained through many tasks that included varied sizes of custom worm gears to print requirements.