Solution Description

UMC is the market leader in gearbox technology. Above our 40 year historical past we have introduced several business shifting gearboxes this kind of as the patented TNT gearbox, the 740, the 760, the 775 and far more. We carry on to define and redefine sector standards for gearbox functionality, quality, characteristics and technologies. Our gearboxes are function developed to do the occupation. Never ever above-engineered.

UMC stands driving its merchandise and is dedicated to production the ideal goods for a worldwide market.

740-U 50:1 Ratio

Developed for longer spans, larger wheels, and heavier towers.
 

Functions and Positive aspects

• two.twenty five inch output shaft
• 50:1 equipment ratio
• Cartridge input and output seals
• Larger input bearings
• Enter shaft guard
• External seal protectors for enter and output seals
• Leading oil fill plug
• Common mounting pattern
• Complete cycle growth chamber with stainless metal include
• Crammed with intense force worm equipment oil
• Metal output shaft and input shaft
• Tapered roller bearings
• Contains carriage bolts and nuts
• Dual ended enter shaft

740-UV 52:1 Ratio
Developed for lengthier spans, bigger wheels and heavier towers in which an prolonged output shaft is needed.
 This gearbox has all the identical abilities, functions and benefits that the standard 740 has with a handful of tweaks. The output shaft is prolonged, the gear ratio is 52:1 and the input shaft is made of ductile iron with a 25° pressure angle enabling this gearbox to be utilised on centre pivot and lateral move/ linear techniques that occur normal with these specs.

Functions and Rewards

• two.twenty five inch extended output shaft
• fifty two:1 equipment ratio with 25° pressure angle
• Cartridge enter and output seals
• Bigger input bearings
• Input shaft guard
• Exterior seal protectors for input and output seals
• Prime oil fill plug
• Common mounting pattern
• Entire cycle enlargement chamber with stainless steel cover
• Crammed with intense strain worm gear oil
• Steel output shaft and ductile iron enter shaft
• Tapered roller bearings
• Consists of carriage bolts and nuts
• Twin ended input shaft

760-UV Gearbox

Made for corner programs and lateral transfer carts in which an extended output shaft is essential

Growers normally use UMC’s 760-UV gearbox for the most excessive applications the place an prolonged output shaft is required. The gearbox is made for increased annual several hours of operation while handling the hefty hundreds experienced on corner methods and lateral shift carts as well as the most extreme area situations where wheel rutting is prominent, soil is hefty, and tower weights are greater.

The UMC 760-UV closing generate gearbox is our largest and most tough gearbox with an extended output shaft. It characteristics a larger-diameter bull gear than the common 740 series to deal with twenty% higher torque. It also characteristics a 2.5″ output shaft to accommodate much more overhung load. It is designed for use on center pivots, corners, lateral move/ linear irrigation programs and carts in which a 52:1 equipment ratio and prolonged output shaft are standard specs.

Attributes and Rewards

• two.5″ output shaft
• 52:1 gear ratio with a 25° strain angle
• Exclusive twin input and output seal style
• twenty% far more torque potential than the common 740
• Bronze equipment optional
• Greater input bearings
• Input shaft guard
• External seal protectors for enter and output seals
• 11-Bolt mounting sample
• Total cycle expansion chamber with aluminum include
• Crammed with excessive pressure worm equipment oil
• Metal output shaft and ductile iron enter shaft
• Tapered roller bearings
• Contains carriage bolts and nuts
• Twin ended input shaft

TNT-2 Gearbox

Developed for purposes where the irrigation system may possibly require to be towed

This gearbox is the best remedy for a towable irrigation technique. Growers normally desire this gearbox in excess of a gearbox with a towable hub. Basically disengage the worm and tow your system to its operating area, then re-interact the worm and you are completely ready to run. The CX coupler is the excellent compliment for the TNT-2 gearbox due to the capability to management coupler disengagement at the gearbox.

The UMC patented TNT-2 closing push gearbox is designed exclusively for purposes where a middle pivot or lateral go/ linear irrigation system wants to be towed. The gearbox supplies the capacity to disengage the worm gear and allows consumers to go techniques from 1 location to yet another without having necessitating a Towable Hub insert on.

Attributes and Benefits

• 2.25″ output shaft
• fifty:1 gear ratio
• Twin input seals with triple lip output seals
• Bronze gear optional
• Input shaft guard
• External seal protectors for enter and output seals
• Leading oil fill plug
• eleven-Bolt mounting sample
• Full cycle enlargement chamber with stainless metal protect
• Crammed with severe strain worm equipment oil
• Steel output shaft and enter shaft
• Tapered roller bearings
• Involves carriage bolts and nuts
• Dual ended enter shaft

760-UV Bronze Gearbox

Developed for the most intense conditions the place an prolonged output shaft is essential.

Growers usually use The UMC 760-UV bronze gearbox for the most extreme apps exactly where an prolonged output shaft is necessary. The gearbox is designed for larger annual several hours of operation although handling the weighty loads seasoned on corner programs and lateral move carts as properly as the most intense field conditions in which wheel rutting is prominent, soil is large, and tower weights are higher.

The UMC 760-UV Bronze last drive gearbox is our premier and most tough gearbox with an prolonged output shaft created for the most extreme expanding situations. It attributes a substantial power aluminum bronze bull gear and a warmth taken care of metal worm equipment supplying it a much larger load potential than the standard 760-UV. Additionally, this equipment mix greatly decreases equipment use, extending the beneficial existence of the gearbox. It also attributes a 2.5″ output shaft to accommodate a lot more overhung load. It is created for use on middle pivots, corners, lateral shift/ linear irrigation methods and carts where a fifty two:1 gear ratio and extended output shaft are common requirements.

Attributes and Rewards

• 2.5″ output shaft
• 52:1 equipment ratio with a 25° force angle
• Exclusive twin enter and output seal layout
• Bronze Equipment
• Heat Handled Steel Worm Gear
• Greater enter bearings
• Enter shaft guard
• External seal protectors for input and output seals
• eleven-Bolt mounting sample
• Total cycle enlargement chamber with aluminum go over
• Crammed with extreme stress worm gear oil
• Steel output shaft
• Tapered roller bearings
• Consists of carriage bolts and nuts
• Twin finished input shaft
• Also Available Assembled in the United states of america

UMC is the market chief in gearbox technological innovation. Over 37 yr history they have released numerous business modifying gearboxes this kind of as the patented TNT gearbox, the 740, the 760, the 775 and much more. CZPT carry on to define and redefine market standards for gearbox efficiency, good quality, characteristics and technological innovation. CZPT gearboxes are objective constructed to do the task. Never more than-engineered.CZPT stands driving its goods and is fully commited to producing the best merchandise for a international market.

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What is a worm gear reducer gearbox?

A worm gear reducer gearbox is a mechanical device that uses a worm gear and a worm to reduce the speed of a rotating shaft. The gear reducer gearbox can increase the output torque of the engine according to the gear ratio. This type of gear reducer gearbox is characterized by its flexibility and compact size. It also increases the strength and efficiency of the drive.

Hollow shaft worm gear reducer gearbox

The hollow shaft worm gear reducer gearbox is an additional output shaft connecting various motors and other gearboxes. They can be installed horizontally or vertically. Depending on size and scale, they can be used with gearboxes from 4GN to 5GX.
Worm gear reducer gearboxes are usually used in combination with helical gear reducer gearboxes. The latter is mounted on the input side of the worm gear reducer gearbox and is a great way to reduce the speed of high output motors. The gear reducer gearbox has high efficiency, low speed operation, low noise, low vibration and low energy consumption.
Worm gear reducer gearboxes are made of hard steel or non-ferrous metals, increasing their efficiency. However, gears are not indestructible, and failure to keep running can cause the gear oil to rust or emulsify. This is due to moisture condensation that occurs during the operation and shutdown of the reducer gearbox. The assembly process and quality of the bearing are important factors to prevent condensation.
Hollow shaft worm gear reducer gearboxes can be used in a variety of applications. They are commonly used in machine tools, variable speed drives and automotive applications. However, they are not suitable for continuous operation. If you plan to use a hollow shaft worm gear reducer gearbox, be sure to choose the correct one according to your requirements.

Double throat worm gear

Worm gear reducer gearboxes use a worm gear as the input gear. An electric motor or sprocket drives the worm, which is supported by anti-friction roller bearings. Worm gears are prone to wear due to the high friction in the gear teeth. This leads to corrosion of the confinement surfaces of the gears.
The pitch diameter and working depth of the worm gear are important. The pitch circle diameter is the diameter of the imaginary circle in which the worm and the gear mesh. Working depth is the maximum amount of worm thread that extends into the backlash. Throat diameter is the diameter of the circle at the lowest point of the worm gear face.
When the friction angle between the worm and the gear exceeds the lead angle of the worm, the worm gear is self-locking. This feature is useful for lifting equipment, but may be detrimental to systems that require reverse sensitivity. In these systems, the self-locking ability of the gears is a key limitation.
The double throat worm gear provides the tightest connection between the worm and the gear. The worm gear must be installed correctly to ensure maximum efficiency. One way to install the worm gear assembly is through a keyway. The keyway prevents the shaft from rotating, which is critical for transmitting torque. Then attach the gear to the hub using the set screw.
The axial and circumferential pitch of the worm gear should match the pitch diameter of the larger gear. Single-throat worm gears are single-threaded, and double-throat worm gears are double-throat. A single thread design advances one tooth, while a double thread design advances two teeth. The number of threads should match the number of mating gears.

Self-locking function

One of the most prominent features of a worm reducer gearbox is its self-locking function, which prevents the input and output shafts from being interchanged. The self-locking function is ideal for industrial applications where large gear reduction ratios are required without enlarging the gear box.
The self-locking function of a worm reducer gearbox can be achieved by choosing the right type of worm gear. However, it should be noted that this feature is not available in all types of worm gear reducer gearboxes. Worm gears are self-locking only when a specific speed ratio is reached. When the speed ratio is too small, the self-locking function will not work effectively.
Self-locking status of a worm reducer gearbox is determined by the lead, pressure, and coefficient of friction. In the early twentieth century, cars had a tendency to pull the steering toward the side with a flat tire. A worm drive reduced this tendency by reducing frictional forces and transmitting steering force to the wheel, which aids in steering and reduces wear and tear.
A self-locking worm reducer gearbox is a simple-machine with low mechanical efficiency. It is self-locking when the work at one end is greater than the work at the other. If the mechanical efficiency of a worm reducer gearbox is less than 50%, the friction will result in losses. In addition, the self-locking function is not applicable when the drive is reversed. This characteristic makes self-locking worm gears ideal for hoisting and lowering applications.
Another feature of a worm reducer gearbox is its ability to reduce axially. Worm gears can be double-lead or single-lead, and it is possible to adjust their backlash to compensate for tooth wear.

Heat generated by worm gears

Worm gears generate considerable amounts of heat. It is essential to reduce this heat to improve the performance of the gears. This heat can be mitigated by designing the worms with smoother surfaces. In general, the speed at which worm gears mesh should be in the range of 20 to 24 rms.
There are many approaches for calculating worm gear efficiency. However, no other approach uses an automatic approach to building the thermal network. The other methods either abstractly investigate the gearbox as an isothermal system or build the TNM statically. This paper describes a new method for automatically calculating heat balance and efficiency for worm gears.
Heat generated by worm gears is a significant source of power loss. Worm gears are typically characterized by high sliding speeds in their tooth contacts, which causes high frictional heat and increased thermal stresses. As a result, accurate calculations are necessary to ensure optimal operation. In order to determine the efficiency of a gearbox system, manufacturers often use the simulation program WTplus to calculate heat loss and efficiency. The heat balance calculation is achieved by adding the no-load and load-dependent power losses of the gearbox.
Worm gears require a special type of lubricant. A synthetic oil that is non-magnetic and has a low friction coefficient is used. However, the oil is only one of the options for lubricating worm gears. In order to extend the life of worm gears, you should also consider adding a natural additive to the lubricant.
Worm gears can have a very high reduction ratio. They can achieve massive reductions with little effort, compared to conventional gearsets which require multiple reductions. Worm gears also have fewer moving parts and places for failure than conventional gears. One disadvantage of worm gears is that they are not reversible, which limits their efficiency.

Size of worm gear reducer gearbox

Worm gear reducer gearboxes can be used to decrease the speed of a rotating shaft. They are usually designed with two shafts at right angles. The worm wheel acts as both the pinion and rack. The central cross section forms the boundary between the advancing and receding sides of the worm gear.
The output gear of a worm gear reducer gearbox has a small diameter compared to the input gear. This allows for low-speed operation while producing a high-torque output. This makes worm gear reducer gearboxes great for space-saving applications. They also have low initial costs.
Worm gear reducer gearboxes are one of the most popular types of speed reducer gearboxes. They can be small and powerful and are often used in power transmission systems. These units can be used in elevators, conveyor belts, security gates, and medical equipment. Worm gearing is often found in small and large sized machines.
Worm gears can also be adjusted. A dual-lead worm gear has a different lead on the left and right tooth surfaces. This allows for axial movement of the worm and can also be adjusted to reduce backlash. A backlash adjustment may be necessary as the worm wears down. In some cases, this backlash can be adjusted by adjusting the center distance between the worm gear.
The size of worm gear reducer gearbox depends on its function. For example, if the worm gear is used to reduce the speed of an automobile, it should be a model that can be installed in a small car.

editor by czh 2023-01-30