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 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 aid a load from any orientation. The ¼” ABS plastic and aluminum structure provides 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 work with this gearbox (engine 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 / (moments per rotation desired / 30)
Example: 1 / (10 minutes per rotation / 30) = 3 RPM motor needed 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 degree of standard in manufacturing of worm gears in gearboxes. Right from the look of gearbox, materials selection to manufacturing practice of worm gear 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
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 often obtainable in stock or could be made on short 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 gear boxes have 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.
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 gear pairings provide large speed reduction ratios with only 1 gear 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 is the low level sound they produce. Some drawbacks will be the general low efficiency and the actual fact that they generate warmth.
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 due to truth that the metallic fibrous structure has not been cut.
2) The surface 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 area increases to around HB240 to 260.
3) Chilly rolled worms are suitable for miniature gear applications since this can be rotated smoothly without damaging the worm wheels crafted from POM or other 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 finish. 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 known as a worm wheel), with non-parallel, nonintersecting shafts oriented 90 degrees to each other. The worm is definitely analogous to a screw with a V-type thread, and the gear is usually analogous to a spur gear. The worm is typically the generating component, with the worm’s thread advancing the 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 change (360 degrees) of the worm increases the gear by one tooth. Therefore a gear with 24 teeth will provide a gear reduction of 24:1. For a multi-begin 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 is certainly a function of the diameters of the two 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 performance of worm gears to 30 to 50 percent. To be able to minimize friction (and for that reason, warmth), the worm and gear are made from dissimilar metals – for example, the worm may 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 contributes to quiet operation.) This makes worm gears ideal for use where sound should be minimized, such as for example in elevators. Furthermore, the utilization 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 usually 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 worm wheel gearbox requiring high-ratio speed reduction in a limited space using right angle (90°), nonintersecting shafts. When properly used, worms and worm gears provide the smoothest, quietest form of gearing.
Because the efficiency of a worm equipment drive depends upon the lead angle and number of begins on the worm – and because increased efficiency is always a goal, 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 type of worms and worm gears can be ordered through the EP Equipment Guaranteed Same Day time Shipment Plan for the fastest delivery possible.
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 efficiency problem if you don’t know the how to choose the worm gearbox. 3 basic indicate choose high worm gear efficiency that you should know:
1) Helix angle. The worm gear drive efficiency mostly depend on the helix angle of the worm. Usually, multiple thread worms and gears is certainly more efficient than single thread worms. Proper thread worms can increase performance.
2) Lubrication. To choose a brand lubricating essential oil is an essential factor to boost worm gearbox effectiveness. As the proper lubrication can reduce worm gear action friction and warmth.
3) Materials selection and Gear Production Technology. For worm shaft, the material should 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 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 range of worm reducer that precisely fits 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 the motor and the worm gear reducer.
4) You must make use of flexible cables and wiring for a manual installation.
By using the innovative science and drive technology, we’ve developed several unique “square box” 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 standard 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 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 accessories. EP gearboxes have a high-quality, long-term synthetic lubricant on the basis of polyethylene glycol, and are therefore maintenancefree. They are characterized by high performance and self-locking.
Due to 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, while retaining torque or power. It’s quite common for worm gears to possess reductions of 20:1, and also up to 300:1 or greater.
Common gearing includes the initial capability which additional 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 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 gear to engineer metal 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 achieve the most challenging project requirements. The mixture of robust components, advanced manufacturer systems, reliability and our dedication to customer satisfaction makes us a high supplier in advanced gearing and shafting items.
Our gear manufacturing locations have over twenty years of worm gear design experience, gained through many projects that included varied sizes of custom worm gears to print requirements.