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 minimizes backlash but also eliminates back-traveling the gearmotor so a position can be held even when power isn’t applied. The precision ground 3/8” stainless steel result shaft is backed 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 usually easily installed to any flat work surface by utilizing the base mounting tabs. Our Regular Spur Gear motors will work with this gearbox (motor offered separately). The Vertical Shaft Worm-Drive Gearbox is ideal for turn-tables, time-lapse systems and low-quickness applications that require high precision and torque.
Motor RPM required = 1 / (minutes per rotation desired / 30)
Example: 1 / (10 minutes per rotation / 30) = 3 RPM motor needed to achieve 10 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 selection of standard, non regular 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 look of gearbox, material selection to production practice of worm gear 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
Middle Distances : 40 mm to 400 mm
Single stage / Double stage
Small Worm Gearbox Models 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 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 constructed of Chill Cast Phosphorous Bronze.
Ever-Power worm equipment boxes possess liberal ribbing for increasing high temperature dissipation region, streamlined sump to carry more oil and fan of ample size which is effective in both part of rotation.
Wherever applicable, British as well as Indian Design standards are used. Worm Shafts conform to case- hardening Alloy Steels, Worm Wheels conform to phosphorous-bronze according to BS 1400, While Equipment case conforms to C.I. Quality 20, IS210.
High reduction gear
Worm and wheel equipment pairings provide large speed reduction ratios with only one equipment pairing in a far 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 equipment pairings may be the low level noise they produce. Some disadvantages will be the general low efficiency and the fact that they generate high temperature.
Advantage of EP’s Worm Gears – “Frosty rolled Worm Gears”
1) The hardness of the helicoid surface has been attained by work 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 surface hardness after frosty rolling is increased by 1.2 to 1 1.3 times when compared with the hardness of the original material, and the hardness of the helicoid surface area increases to around HB240 to 260.
3) Frosty 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) Due to 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 complete. Thus, EP-Precision Chilly Rolled Worms give 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, nonintersecting shafts oriented 90 degrees to each other. The worm can be analogous to a screw with a V-type thread, and the apparatus is analogous to a spur equipment. The worm is normally the generating component, with the worm’s thread advancing the teeth of the gear.
Such as 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 turn (360 degrees) of the worm increases the equipment 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 amount of teeth on the gear, divided by the number of begins on the worm. (This is different from most other types of gears, where the gear reduction is definitely a function of the diameters of both 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 temperature, which limits the efficiency of worm gears to 30 to 50 percent. In order to minimize friction (and therefore, heat), the worm and gear are made from dissimilar metals – for example, the worm could 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 utilization of dissimilar metals for the worm and gear also plays a part in quiet operation.) This makes worm gears ideal for use where noise should be minimized, such as in elevators. Furthermore, the use of a softer materials for the gear means that it can absorb shock loads, like those experienced in heavy equipment or crushing machines.
The primary advantage of worm gears is their capability to provide high reduction ratios and correspondingly high torque multiplication. They may also be utilized as speed reducers in low- to medium-swiftness applications. And, because their reduction ratio is based on the number of gear teeth alone, they are more compact than other types of gears. Like fine-pitch business lead screws, worm gears are typically self-locking, which makes them ideal for hoisting and lifting applications.
Worms & Worm Gears
EP Gear’s worms and worm gears provide an effective answer for power transmission applications requiring high-ratio speed reduction in a limited space using correct angle (90°), non-intersecting shafts. When properly applied, worms and worm gears supply the smoothest, quietest kind of gearing.
Because the efficiency of a worm equipment drive depends upon the lead angle and amount of starts 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 used together must have the same diametral pitch and threads.
Our complete line of worms and worm gears could be ordered through the EP Gear Guaranteed Same Time Shipment Plan for the quickest delivery possible.
90°, nonintersecting shaft applications solution highly specialized power transmission needs.
Our worm gears provide smoothest, quietest kind 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.
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 production 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 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. Usually, multiple thread worms and gears is definitely more efficient than single thread worms. Proper thread worms can increase performance.
2) Lubrication. To choose a brand lubricating essential oil can be an essential factor to improve worm gearbox effectiveness. As the correct lubrication can reduce worm gear action friction and temperature.
3) Materials selection and Gear Manufacturing Technology. For worm shaft, the material ought to be hardened steel. The worm gear material ought to be aluminium bronze. By reducing the worm equipment hardness, the friction on the worm the teeth is reduced. In worm manufacturing, to use the specialized machine for gear cutting and tooth grinding of worms also can increase worm gearbox performance.
From a big transmission gearbox power to an even small worm gearbox load, you can choose one from an array of worm reducer that precisely suits 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) Ensure that you check the connection between your motor and the worm equipment reducer.
4) You must make use of flexible cables and wiring for a manual installation.
With the help of the innovative science and drive technology, we’ve 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, right angle gearbox. An NMRV series gearbox is certainly a typical worm gearbox with a bronze worm equipment and a worm. Our Helical gearbox products consists of four universal series (R/S/K/F) and a step-less quickness 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 short shaft end are optionally available as components. EP gearboxes have a high-quality, long-term synthetic lubricant based on polyethylene glycol, and so are therefore maintenancefree. They are characterized by high efficiency and self-locking.
Because of their relatively high backlash (~1-2°), worm gears aren’t ideal for positioning applications.
Worm Gear applications
Application of worm gears, which is comparable to a typical spur and the worm, which really is a cylindrical equipment that worm wheel gearbox resembles a screw, permits smaller gearboxes or planetary drives, whilst retaining torque or power. It is common for worm gears to have reductions of 20:1, and also up to 300:1 or greater.
Typical gearing includes the unique capability which various other gearing components do not 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 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 constantly in place.
Committed to excellence, our employees possess the most important priority satisfying your equipment building needs and product improvement.
Also, we take pride in our equipment; few manufacturers have the gear to engineer steel parts as precise as we do. Even fewer manufacturing companies have the machining devices to check on the tolerances we can hold.
Being a gearing manufacturer to Automotive level businesses, with a diverse way to obtain material types, allow us to attain the most challenging project requirements. The mixture of robust components, advanced manufacturer technology, reliability and our commitment to client satisfaction makes us a high provider in advanced gearing and shafting items.
Our gear manufacturing locations have over two decades of worm gear style expertise, gained through many tasks that included varied sizes of custom made worm gears to print requirements.