This gearbox utilizes a 30:1 ratio worm-drive worm wheel gearbox reduction for applications that want extremely slow and smooth rotational motion. The worm-drive design not only minimizes backlash but also eliminates back-generating the gearmotor so a posture can be held even when power isn’t applied. The precision ground 3/8” stainless steel result shaft is supported by dual 3/8” ABEC 5 ball bearings to support lots from any orientation. The ¼” ABS plastic and aluminum structure offers a rigid framework without adding unnecessary weight and is definitely easily mounted to any flat work surface by utilizing the bottom mounting tabs. Our Standard Spur Gear motors will continue to work with this gearbox (engine offered separately). The Vertical Shaft Worm-Drive Gearbox is perfect for turn-tables, time-lapse systems and low-quickness 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 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 offers you the widest range of standard, non standard and customised worm gearbox and worm gear motor.

Ever-Power maintains the best level of standard in manufacturing of worm gears in gearboxes. From the look of gearbox, materials selection to manufacturing 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
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 obtainable in stock or could be made on short 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 area, streamlined sump to carry 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 as per BS 1400, While Equipment case conforms to C.I. Grade 20, IS210.

High reduction gear
Worm and wheel equipment pairings provide large velocity reduction ratios with only one equipment pairing in a more compact space in comparison to other types of gears. You can expect up to maximum ratio of 100:1 with this products. Another benefit of the Worm and Wheel gear pairings may be the low level sound they produce. Some drawbacks will be the general low effectiveness and the fact that they generate high temperature.

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

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

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

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

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

Just like 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 convert (360 degrees) of the worm increases the gear by one tooth. So a gear with 24 teeth will provide a gear reduced amount 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 gear is a mixture of sliding and rolling actions, but sliding contact dominates at high reduction ratios. This sliding actions causes friction and temperature, which limits the performance of worm gears to 30 to 50 percent. To be able to minimize friction (and for that reason, temperature), the worm and gear are made from dissimilar metals – for example, the worm could be made of hardened steel and the gear manufactured from 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 plays a part in quiet operation.) This makes worm gears ideal for use where sound should be minimized, such as for example in elevators. In addition, the use of a softer materials for the apparatus means that it can 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 used as swiftness reducers in low- to medium-rate applications. And, because their decrease ratio is based on the amount of gear teeth alone, they are smaller sized than other styles of gears. Like fine-pitch business lead screws, worm gears are typically self-locking, making them perfect 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 correct angle (90°), nonintersecting shafts. When properly used, worms and worm gears provide the smoothest, quietest form of gearing.

Because the effectiveness of a worm equipment drive depends upon the 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 correctly, worms and worm gears used together must have the same diametral pitch and threads.

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

How exactly to Select High Efficient Worm Gearbox?
The worm gear manufacturing process can be relatively simple. Nevertheless, there is a low transmission effectiveness 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 position. The worm gear drive efficiency mostly rely on the helix angle of the worm. Generally, multiple thread worms and gears is certainly more efficient than solitary thread worms. Proper thread worms can increase performance.

2) Lubrication. To choose a brand lubricating essential oil is an essential factor to improve worm gearbox performance. As the proper lubrication can decrease worm gear action friction and warmth.

3) Materials 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 the teeth is reduced. In worm production, to use the specialized machine for gear slicing and tooth grinding of worms can also increase worm gearbox performance.

From a huge transmission gearbox power to an even 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 may complete the installation in six different ways.

2) The installation should be solid and reliable.

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

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

With the help of the innovative 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 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 comprises of four universal series (R/S/K/F) and a step-less quickness 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 dual 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 on the basis of polyethylene glycol, and so are therefore maintenancefree. They are characterized by 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
Software of worm gears, which is comparable to a typical spur and the worm, which really is a cylindrical equipment 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.

Standard gearing includes the unique capability which various other gearing components don’t have – the “worm” can effortlessly spin the part, but 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 is not 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 have the most crucial priority satisfying your gear building needs and product improvement.

Also, we take pride inside our equipment; few manufacturers have the equipment to engineer metallic parts as exact as we do. Actually fewer manufacturing companies have the machining devices to check the tolerances we are able to hold.

Being a gearing producer to Automotive level businesses, with a diverse supply of material types, allow all of us to attain the most challenging project requirements. The mixture of robust components, advanced manufacturer systems, reliability and our dedication to customer satisfaction makes us a top provider in advanced gearing and shafting items.

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