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 merely minimizes backlash but also eliminates back-traveling the gearmotor so a posture can be kept even when power isn’t applied. The precision surface 3/8” stainless steel result shaft is supported by dual 3/8” ABEC 5 ball bearings to aid a load from any orientation. The ¼” ABS plastic and aluminum structure offers a rigid framework without adding unnecessary weight and is certainly easily mounted to any flat work surface by utilizing the base mounting tabs. Our Regular Spur Gear motors will work with this gearbox (engine 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 / (a few minutes per rotation desired / 30)
Example: 1 / (ten minutes per rotation / 30) = 3 RPM motor needed to achieve ten 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 Regular Spur Gear Motors
Ever-Power offers you the widest selection of standard, non regular and customised worm gearbox and worm equipment motor.
Ever-Power maintains the best level of standard in production of worm gears in gearboxes. From the design of gearbox, material 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 Models 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 Metal, duly hardened and tempered. The worm wheel is constructed of Chill Cast Phosphorous Bronze.
Ever-Power worm gear boxes possess liberal ribbing for increasing temperature 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 along with 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. Grade 20, IS210.
High reduction gear
Worm and wheel equipment pairings provide large acceleration decrease ratios with only one equipment pairing in a far more compact space in comparison to other styles of gears. We offer up to a maximum ratio of 100:1 with our products. Another advantage of the Worm and Wheel gear pairings may be the low level noise they produce. Some drawbacks are the general low performance and the actual fact that they generate temperature.
Benefit of EP’s Worm Gears – “Frosty rolled Worm Gears”
1) The hardness of the helicoid surface has been achieved by work hardening when the chilly rolling was performed, providing Worm gears with better mechanical properties than machined worms due to truth that the metallic fibrous framework is not cut.
2) The surface hardness after chilly 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) Cold rolled worms are suitable for miniature equipment applications since this could be rotated smoothly without damaging the worm wheels crafted from POM or other soft materials.
4) Due to the implementation of this cold rolling method, the helicoid surface 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 gear (sometimes referred to as a worm wheel), with nonparallel, non-intersecting shafts oriented 90 degrees to one 
another. The worm is definitely analogous to a screw with a V-type thread, and the gear is analogous to a spur equipment. The worm is typically the driving component, with the worm’s thread advancing one’s teeth of the gear.
Like a ball screw, the worm in a worm gear may have a single start or multiple starts – meaning that there are multiple threads, or helicies, on the worm. For a single-start worm, each complete switch (360 degrees) of the worm advances the equipment by one tooth. Therefore a gear with 24 teeth will provide a gear reduced amount of 24:1. For a multi-start worm, the apparatus reduction equals the amount of teeth on the gear, divided by the number of starts on the worm. (That is different from most other types of gears, where the gear reduction can be a function of the diameters of the two components.)
The meshing of the worm and the apparatus is an assortment of sliding and rolling actions, but sliding contact dominates at high reduction ratios. This sliding actions causes friction and high temperature, which limits the performance of worm gears to 30 to 50 percent. In order to minimize friction (and for that reason, temperature), the worm and equipment are constructed with dissimilar metals – for instance, the worm may be made of hardened metal and the gear made of bronze or aluminum.
Although the sliding contact decreases 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. In addition, the use of a softer material for the apparatus means that it could absorb shock loads, like those skilled in heavy equipment or crushing machines.
The primary benefit of worm gears is their ability to provide high reduction ratios and correspondingly high torque multiplication. They may also be used as quickness reducers in low- to medium-acceleration applications. And, because their reduction ratio is based on the amount of gear teeth alone, they are more compact than other styles 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 a highly effective answer for power tranny applications requiring high-ratio quickness reduction in a restricted space using right angle (90°), non-intersecting shafts. When properly applied, worms and worm gears provide the smoothest, quietest form of gearing.
Because the effectiveness of a worm gear drive depends on the lead angle and quantity of begins 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 must 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 fastest delivery possible.
Product Features
90°, nonintersecting shaft applications solution highly specialized power tranny needs.
Our worm gears provide smoothest, quietest kind of gearing.
They provide high-ratio speed decrease in minimal spaces.
Their worm wheel gearbox efficiency is easily increased by decreasing ratios.
With some ratios, there is level of resistance to back driving.
Offered 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 is also relatively simple. However, there is a low transmission efficiency problem in the event that you don’t understand the how to choose the worm gearbox. 3 basic indicate choose high worm equipment efficiency that you should know:
1) Helix angle. The worm gear drive efficiency mostly rely on the helix position of the worm. Generally, multiple thread worms and gears is certainly more efficient than solitary thread worms. Proper thread worms can increase effectiveness.
2) Lubrication. To select a brand lubricating essential oil is an essential factor to boost worm gearbox efficiency. As the proper lubrication can decrease worm equipment action friction and heat.
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 gear hardness, the friction on the worm the teeth is decreased. In worm production, to use the specific machine for gear cutting and tooth grinding of worms can also increase worm gearbox performance.
From a large transmission gearbox capacity to an even small worm gearbox load, you can choose one from a wide variety of worm reducer that precisely matches your application requirements.
Worm Gear Container Assembly：
1) You may complete the installation in six various ways.
2) The installation should be solid and reliable.
3) Make sure to check the connection between your electric motor and the worm gear reducer.
4) You must use flexible cables and wiring for a manual installation.
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, correct angle gearbox. An NMRV series gearbox can be a standard 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 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 result or a cover for the short shaft end are optionally available as components. 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 efficiency and self-locking.
Please note:
Because of their relatively high backlash (~1-2°), worm gears aren’t ideal for positioning applications.
Worm Gear applications
Program of worm gears, which is similar to a standard spur and the worm, which is a cylindrical gear that resembles a screw, allows for smaller gearboxes or planetary drives, whilst retaining torque or power. It is common for worm gears to have got reductions of 20:1, and even up to 300:1 or greater.
Regular 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 reason behind this inability to rotate the gear-worm?
The angle is not 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 constantly in place.
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 metal parts as precise as we do. Actually fewer manufacturing businesses have the machining tools to check the tolerances we can hold.
Being a gearing manufacturer to Automotive level companies, with a diverse supply of 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 customer satisfaction makes us a top provider in advanced gearing and shafting products.
Our gear manufacturing places have over two decades of worm gear design expertise, gained through many tasks that included varied sizes of custom worm gears to print requirements.