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 worm wheel gearbox backlash but also eliminates back-driving the gearmotor so a position can be held even when power isn’t applied. The precision floor 3/8” stainless steel output shaft is supported by dual 3/8” ABEC 5 ball bearings to support a load from any orientation. The ¼” ABS plastic and aluminium 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 Regular Spur Gear motors will work with this gearbox (electric motor offered separately). The Vertical Shaft Worm-Drive Gearbox is ideal for turn-tables, time-lapse systems and low-rate applications that want high precision and torque.
Motor RPM required = 1 / (mins per rotation desired / 30)
Example: 1 / (ten minutes per rotation / 30) = 3 RPM motor had a need 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 Regular Spur Gear Motors
Ever-Power offers you the widest range of standard, non standard and customised worm gearbox and worm equipment motor.
Ever-Power maintains the highest level of standard in production of worm gears in gearboxes. Right from the design of gearbox, material selection to manufacturing practice of worm equipment 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 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 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 fan of ample size which works well in both part of rotation.
Design Standards:
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 Equipment case conforms to C.I. Quality 20, IS210.
High reduction gear
Worm and wheel equipment pairings provide large quickness decrease ratios with only one equipment pairing in a more compact space when compared with 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 noise they produce. Some disadvantages will be the general low efficiency and the actual fact that they generate high temperature.
Benefit of EP’s Worm Gears – “Cold rolled Worm Gears”
1) The hardness of the helicoid surface has been achieved 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 has not been cut.
2) The surface hardness after cool rolling is increased by 1.2 to 1 1.3 times when compared with the hardness of the original materials, and the hardness of the helicoid surface increases to around HB240 to 260.
3) Chilly rolled worms are suitable for miniature equipment applications since this is often rotated smoothly without damaging the worm wheels crafted from POM or various other soft materials.
4) Due to the implementation of the cold rolling method, the helicoid surface of EP-Worm (M0.5 to 2.0) comes out with a mirror like complete. Thus, EP-Precision Cold Rolled Worms provide a smooth operation and long-term durability.
Worm gears are constructed of a worm and a equipment (sometimes referred to as a worm wheel), with nonparallel, nonintersecting shafts oriented 90 degrees to one another. The worm is certainly analogous to a screw with a V-type thread, and the gear is definitely analogous to a spur equipment. The worm is normally the generating component, with the worm’s thread advancing the teeth of the gear.
Like a ball screw, the worm in a worm gear might have an individual start or multiple starts – meaning that there are multiple threads, or helicies, on the worm. For a single-start worm, each complete convert (360 degrees) of the worm advances the equipment by one tooth. So a gear with 24 teeth provides 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 number of begins on the worm. (This is different from most other types of gears, where in fact 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 action causes friction and heat, which limits the performance of worm gears to 30 to 50 percent. In order to minimize friction (and therefore, high temperature), the worm and gear are made from dissimilar metals – for instance, the worm could be made of hardened steel and the gear manufactured from bronze or aluminum.
Although the sliding contact reduces efficiency, it provides very quiet operation. (The usage of dissimilar metals for the worm and equipment also contributes to quiet procedure.) This makes worm gears ideal for use where sound 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 weighty equipment or crushing devices.
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-rate applications. And, because their decrease ratio is founded on the amount of gear teeth alone, they are smaller sized than other types of gears. Like fine-pitch lead screws, worm gears are typically self-locking, making them well suited 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 restricted space using correct angle (90°), nonintersecting shafts. When properly used, worms and worm gears supply the smoothest, quietest type of gearing.
Because the effectiveness of a worm equipment drive depends on the business lead angle and quantity of begins on the worm – and because increased effectiveness is always an objective, the ratio ought to 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 could be ordered through the EP Equipment Guaranteed Same Time Shipment System for the quickest delivery possible.
Product Features
90°, non-intersecting shaft applications solution highly specialized power transmitting needs.
Our worm gears offer the smoothest, quietest type of gearing.
They offer high-ratio speed reduction in minimal spaces.
Their efficiency is easily increased by decreasing 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 to Select High Efficient Worm Gearbox?
The worm gear production process can be relatively simple. Nevertheless, there exists a low transmission effectiveness problem if you don’t understand the how to select the worm gearbox. 3 basic indicate choose high worm gear efficiency that you should know:
1) Helix angle. The worm gear drive efficiency mostly rely on the helix position of the worm. Usually, multiple thread worms and gears is usually more efficient than solitary thread worms. Proper thread worms can increase performance.
2) Lubrication. To select a brand lubricating oil is an essential factor to improve worm gearbox efficiency. As the proper lubrication can decrease worm gear action friction and heat.
3) Materials selection and Gear Production Technology. For worm shaft, the material ought to be hardened steel. The worm gear materials ought to be aluminium bronze. By reducing the worm equipment hardness, the friction on the worm tooth is decreased. In worm production, to use the specific machine for gear reducing and tooth grinding of worms also can increase worm gearbox performance.
From a big transmission gearbox capacity 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 Container Assembly：
1) You can complete the installation in six various ways.
2) The installation must be solid and reliable.
3) Be sure to check the connection between the electric motor and the worm equipment 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 style series: worm drive gearbox, parallel shaft gearbox, bevel helical gearbox, spiral bevel gearbox, coaxial gearbox, right angle gearbox. An NMRV series gearbox is 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 acceleration variation UDL series. Their structure 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 dual shaft for double-sided result or a cover for the brief shaft end are elective as accessories. EP gearboxes have a high-quality, long-term synthetic lubricant based on polyethylene glycol, and so are for that reason maintenancefree. They are seen as a high effectiveness and self-locking.
Please note:
Because of their relatively high backlash (~1-2°), worm gears are not suitable 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 is common for worm gears to have reductions of 20:1, and also up to 300:1 or greater.
Typical gearing includes the initial capability which various other gearing components don’t 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 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 have the most important priority satisfying your equipment building needs and product improvement.
Also, we take pride in our equipment; few producers have the equipment to engineer metallic parts as precise as we do. Also fewer manufacturing companies have the machining devices to check on the tolerances we can hold.
Being a gearing producer to Automotive level companies, with a diverse supply of material types, allow us to attain the most challenging project requirements. The combination of robust materials, advanced manufacturer systems, reliability and our dedication to client satisfaction makes us a top provider in advanced gearing and shafting items.
Our gear manufacturing places have over two decades of worm gear design experience, gained through many tasks that included varied sizes of customized worm gears to print requirements.