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 position can be kept even when power isn’t applied. The precision ground 3/8” stainless steel output 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 provides a rigid framework without adding unnecessary weight and is certainly easily installed to any flat work surface by utilizing the bottom mounting tabs. Our Regular Spur Gear motors will continue to work with this gearbox (electric motor marketed separately). The Vertical Shaft Worm-Drive Gearbox is perfect for turn-tables, time-lapse systems and low-swiftness applications that want high precision and torque.
Motor RPM required = 1 / (minutes per rotation desired / 30)
Example: 1 / (ten minutes per rotation / 30) = 3 RPM motor had a need to achieve ten minutes per rotation (at 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 selection of standard, non regular and customised worm gearbox and worm gear 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 production practice of worm equipment 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
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 brief notice by customer.
Worm gearboxes are experiencing cast iron gear case, worm shaft is of Alloy Metal, duly hardened and tempered. The worm wheel is constructed of Chill Cast Phosphorous Bronze.
Ever-Power worm equipment boxes have liberal ribbing for increasing heat dissipation area, streamlined sump for carrying more oil and lover of ample size which is effective in both part of rotation.
Wherever applicable, British along with 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 swiftness reduction ratios with only 1 gear pairing in a more compact space in comparison to other styles of gears. You can expect up to a maximum ratio of 100:1 with our products. Another advantage of the Worm and Wheel gear pairings is the low level sound they produce. Some drawbacks will be the general low effectiveness and the fact that they generate high temperature.
Advantage of EP’s Worm Gears – “Cold rolled Worm Gears”
1) The hardness of the helicoid surface has been achieved by function hardening when the cold worm wheel gearbox 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 surface hardness after chilly 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) Frosty rolled worms are ideal for miniature gear applications since this is often rotated smoothly without damaging the worm wheels crafted from POM or other soft materials.
4) Because of the implementation of this 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 Cold Rolled Worms provide a smooth operation and long term durability.
Worm gears are made of a worm and a gear (sometimes known as a worm wheel), with nonparallel, nonintersecting shafts oriented 90 degrees to one another. The worm is analogous to a screw with a V-type thread, and the gear can be analogous to a spur equipment. The worm is normally the driving component, with the worm’s thread advancing the teeth of the gear.
Just like a ball screw, the worm in a worm gear might 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 increases the gear by one tooth. So a gear with 24 teeth will provide a gear reduction of 24:1. For a multi-begin worm, the gear reduction equals the number of teeth on the gear, divided by the amount of starts on the worm. (This is different from most other types of gears, where the gear reduction is definitely 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 actions causes friction and temperature, which limits the efficiency of worm gears to 30 to 50 percent. In order to minimize friction (and for that reason, warmth), the worm and gear are made from dissimilar metals – for instance, the worm may be made of hardened metal 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 material 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 velocity reducers in low- to medium-acceleration applications. And, because their reduction ratio is founded on the amount of gear teeth only, they are more compact than other styles of gears. Like fine-pitch business lead screws, worm gears are usually self-locking, making them ideal for hoisting and lifting applications.
Worms & Worm Gears
EP Gear’s worms and worm gears provide an effective answer for power transmitting applications requiring high-ratio acceleration reduction in a restricted space using correct angle (90°), nonintersecting shafts. When properly used, worms and worm gears provide the smoothest, quietest type of gearing.
Because the effectiveness of a worm gear drive depends on the lead angle and amount of begins on the worm – and because increased performance is always an objective, the ratio should be kept as low as possible. To run properly, worms and worm gears utilized together will need to have the same diametral pitch and threads.
Our complete type of worms and worm gears can be ordered through the EP Equipment Guaranteed Same Time Shipment Plan for the quickest delivery possible.
90°, nonintersecting shaft applications solution highly specialized power transmission needs.
Our worm gears offer the smoothest, quietest kind of gearing.
They provide high-ratio speed reduction in minimal spaces.
Their efficiency is easily increased by reducing ratios.
With some ratios, there is resistance to back driving.
Offered from 48 DP to 3 DP
Stocked as single, double and quad start configurations
How exactly to Select High Efficient Worm Gearbox?
The worm gear manufacturing process can be relatively simple. Nevertheless, there exists a low transmission efficiency problem if you don’t know the how to choose the worm gearbox. 3 basic point to choose high worm gear efficiency that you should know:
1) Helix angle. The worm equipment drive efficiency mostly rely on the helix angle of the worm. Usually, multiple thread worms and gears is usually more efficient than one thread worms. Proper thread worms can increase effectiveness.
2) Lubrication. To choose a brand lubricating oil can be an essential factor to boost worm gearbox effectiveness. 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 ought to be hardened metal. The worm gear materials ought to be aluminium bronze. By reducing the worm gear hardness, the friction on the worm the teeth is decreased. In worm manufacturing, to use the specific machine for gear reducing and tooth grinding of worms can also increase worm gearbox efficiency.
From a sizable transmission gearbox power to an even small worm gearbox load, you can choose one from an array of worm reducer that precisely matches your application requirements.
Worm Gear Box 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 your engine and the worm gear 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 package” 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, correct angle gearbox. An NMRV series gearbox is certainly a typical worm gearbox with a bronze worm gear and a worm. Our Helical gearbox product line comprises of four universal series (R/S/K/F) and a step-less speed 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 double shaft for double-sided result 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 as a result maintenancefree. They are characterized by high effectiveness and self-locking.
Due to 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 standard spur and the worm, which is a cylindrical gear that resembles a screw, allows for smaller gearboxes or planetary drives, while 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.
Normal gearing includes the unique capability which various other gearing components do not have – the “worm” can effortlessly spin the part, but the “gears” are not able to 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 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 have the most important priority satisfying your gear building needs and product improvement.
Also, we take pride inside our equipment; few manufacturers have the equipment to engineer steel parts as specific as we do. Even fewer manufacturing businesses have the machining apparatus to check the tolerances we are able to hold.
Being a gearing manufacturer 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 materials, advanced manufacturer systems, reliability and our commitment to customer satisfaction makes us a high provider in advanced gearing and shafting items.
Our gear manufacturing places have over twenty years of worm gear design knowledge, gained through many tasks that included varied sizes of custom made worm gears to print requirements.