Descrizione del prodotto

UMC is the industry leader in gearbox technology. Over our 40 year history we have introduced many industry changing gearboxes such as the patented TNT gearbox, the 740, the 760, the 775 and more. We continue to define and redefine industry standards for gearbox performance, quality, features and technology. Our gearboxes are purpose built to do the job. Never over-engineered.

UMC stands behind its products and is committed to manufacturing the best products for a global market.

740-U 50:1 Ratio

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

Features and Benefits

• 2.25 inch output shaft
• 50:1 gear ratio
• Cartridge input and output seals
• Larger input bearings
• Input shaft guard
• External seal protectors for input and output seals
• Top oil fill plug
• Universal mounting pattern
• Full cycle expansion chamber with stainless steel cover
• Filled with extreme pressure worm gear oil
• Steel output shaft and input shaft
• Tapered roller bearings
• Includes carriage bolts and nuts
• Dual ended input shaft

740-UV 52:1 Ratio
Designed for longer spans, larger wheels and heavier towers where an extended output shaft is required.
 This gearbox has all the same capabilities, features and benefits that the standard 740 has with a few tweaks. The output shaft is extended, the gear ratio is 52:1 and the input shaft is made of ductile iron with a 25° pressure angle allowing this gearbox to be used on center CHINAMFG and lateral move/ linear systems that come standard with these specifications.

Features and Benefits

• 2.25 inch extended output shaft
• 52:1 gear ratio with 25° pressure angle
• Cartridge input and output seals
• Larger input bearings
• Input shaft guard
• External seal protectors for input and output seals
• Top oil fill plug
• Universal mounting pattern
• Full cycle expansion chamber with stainless steel cover
• Filled with extreme pressure worm gear oil
• Steel output shaft and ductile iron input shaft
• Tapered roller bearings
• Includes carriage bolts and nuts
• Dual ended input shaft

 

760-UV Gearbox

Designed for corner systems and lateral move carts where an extended output shaft is required

 

Growers typically use UMC’s 760-UV gearbox for the most extreme applications where an extended output shaft is required. The gearbox is designed for higher annual hours of operation while handling the heavy loads experienced on corner systems and lateral move carts as well as the most extreme field conditions where wheel rutting is prominent, soil is heavy, and tower weights are higher.

 

The UMC 760-UV final drive gearbox is our largest and most durable gearbox with an extended output shaft. It features a larger-diameter bull gear than the standard 740 series to handle 20% higher torque. It also features a 2.5″ output shaft to accommodate more overhung load. It is designed for use on center pivots, corners, lateral move/ linear irrigation systems and carts where a 52:1 gear ratio and extended output shaft are standard specifications.

Features and Benefits

• 2.5″ output shaft
• 52:1 gear ratio with a 25° pressure angle
• Unique dual input and output seal design
• 20% more torque capacity than the standard 740
• Bronze gear optional
• Larger input bearings
• Input shaft guard
• External seal protectors for input and output seals
• 11-Bolt mounting pattern
• Full cycle expansion chamber with aluminum cover
• Filled with extreme pressure worm gear oil
• Steel output shaft and ductile iron input shaft
• Tapered roller bearings
• Includes carriage bolts and nuts
• Dual ended input shaft

TNT-2 Gearbox

Designed for applications where the irrigation system may need to be towed

 

This gearbox is the perfect solution for a towable irrigation system. Growers typically prefer this gearbox over a gearbox with a towable hub. Simply disengage the worm and tow your system to its working location, then re-engage the worm and you are ready to run. The CX coupler is the perfect compliment for the TNT-2 gearbox due to the ability to control coupler disengagement at the gearbox.

 

The UMC patented TNT-2 final drive gearbox is designed specifically for applications where a center CHINAMFG or lateral move/ linear irrigation system needs to be towed. The gearbox provides the ability to disengage the worm gear and allows users to move systems from 1 area to another without requiring a Towable Hub add on.

Features and Benefits

• 2.25″ output shaft
• 50:1 gear ratio
• Dual input seals with triple lip output seals
• Bronze gear optional
• Input shaft guard
• External seal protectors for input and output seals
• Top oil fill plug
• 11-Bolt mounting pattern
• Full cycle expansion chamber with stainless steel cover
• Filled with extreme pressure worm gear oil
• Steel output shaft and input shaft
• Tapered roller bearings
• Includes carriage bolts and nuts
• Dual ended input shaft

 
 

760-UV Bronze Gearbox

Designed for the most extreme conditions where an extended output shaft is required.

 

Growers typically use The UMC 760-UV bronze gearbox for the most extreme applications where an extended output shaft is required. The gearbox is designed for higher annual hours of operation while handling the heavy loads experienced on corner systems and lateral move carts as well as the most extreme field conditions where wheel rutting is prominent, soil is heavy, and tower weights are higher.

 

The UMC 760-UV Bronze final drive gearbox is our largest and most durable gearbox with an extended output shaft designed for the most extreme growing conditions. It features a high strength aluminum bronze bull gear and a heat treated steel worm gear giving it a much higher load capacity than the standard 760-UV. Additionally, this gear combination greatly reduces gear wear, extending the useful life of the gearbox. It also features a 2.5″ output shaft to accommodate more overhung load. It is designed for use on center pivots, corners, lateral move/ linear irrigation systems and carts where a 52:1 gear ratio and extended output shaft are standard specifications.

Features and Benefits

• 2.5″ output shaft
• 52:1 gear ratio with a 25° pressure angle
• Unique dual input and output seal design
• Bronze Gear
• Heat Treated Steel Worm Gear
• Larger input bearings
• Input shaft guard
• External seal protectors for input and output seals
• 11-Bolt mounting pattern
• Full cycle expansion chamber with aluminum cover
• Filled with extreme pressure worm gear oil
• Steel output shaft
• Tapered roller bearings
• Includes carriage bolts and nuts
• Dual ended input shaft
• Also Available Assembled in the USA

CHINAMFG is the industry leader in gearbox technology. Over 37 year history they have introduced many industry changing gearboxes such as the patented TNT gearbox, the 740, the 760, the 775 and more. CHINAMFG continue to define and redefine industry standards for gearbox performance, quality, features and technology. CHINAMFG gearboxes are purpose built to do the job. Never over-engineered.UMC stands behind its products and is committed to manufacturing the best products for a global market.

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Applicazione:	Motor, Agricultural Machinery, Agricultural
Funzione:	Speed Reduction
Durezza:	Temprato
Tipo:	Worm and Wormwheel
Material:	Ghisa
Manipulate Way:	Semi-Automatic Manipulation

Personalizzazione:	Disponibile | Richiesta personalizzata

Come installare e allineare correttamente un riduttore a vite senza fine

Una corretta installazione e un adeguato allineamento del riduttore a vite senza fine sono fondamentali per garantirne prestazioni ottimali e una lunga durata. Segui questi passaggi per installare e allineare un riduttore a vite senza fine:

1. Preparazione: Prima di iniziare il processo di installazione, raccogli tutti gli strumenti, le attrezzature e i dispositivi di sicurezza necessari.
2. Posizionamento: Posizionare il riduttore a vite senza fine nel punto desiderato, assicurandosi che sia fissato saldamente a una superficie stabile. Utilizzare elementi di fissaggio e staffe di montaggio appropriati, se necessario.
3. Allineamento dell'albero: Verificare l'allineamento degli alberi di ingresso e di uscita. Utilizzare strumenti di misurazione di precisione per assicurarsi che gli alberi siano paralleli e allineati tra loro.
4. Allineamento della piastra di base: Allineare la piastra di base del riduttore con la base o la superficie di montaggio. Assicurarsi che la piastra di base sia in piano e correttamente allineata prima di fissarla in posizione.
5. Serraggio dei bulloni: Gradually and evenly tighten the mounting bolts to the manufacturer’s specifications. This helps ensure proper contact between the reducer and the mounting surface.
6. Verifica la disponibilità di spazio libero: Verificare che vi sia spazio sufficiente per eventuali componenti o parti rotanti che potrebbero muoversi durante il funzionamento. Evitare qualsiasi interferenza che potrebbe causare danni o problemi di funzionamento.
7. Lubrificazione: Apply the recommended lubricant to the worm reducer according to the manufacturer’s guidelines. Proper lubrication is essential for smooth operation and reducing friction.
8. Test di allineamento: Dopo l'installazione, azionare brevemente il riduttore a vite senza carico per verificare la presenza di rumori anomali, vibrazioni o problemi di disallineamento.
9. Test di carico: Introdurre gradualmente il carico previsto nel riduttore a vite senza fine e monitorarne le prestazioni. Assicurarsi che il riduttore funzioni in modo fluido ed efficiente nelle condizioni di carico.

It’s important to refer to the manufacturer’s installation guidelines and specifications for your specific worm reducer model. Proper installation and alignment will contribute to the gearbox’s reliability, efficiency, and overall functionality.

How to Calculate the Input and Output Speeds of a Worm Gearbox?

Calculating the input and output speeds of a worm gearbox involves understanding the gear ratio and the principles of gear reduction. Here’s how you can calculate these speeds:

• Velocità di input: The input speed (N₁) is the speed of the driving gear, which is the worm gear in this case. It is usually provided by the manufacturer or can be measured directly.
• Velocità di uscita: The output speed (N₂) is the speed of the driven gear, which is the worm wheel. To calculate the output speed, use the formula:

  N₂ = N₁ / (Z₁ * i)

Where:
N₂ = Output speed (rpm)
N₁ = Input speed (rpm)
Z₁ = Number of teeth on the worm gear
i = Gear ratio (ratio of the number of teeth on the worm gear to the number of threads on the worm)

It’s important to note that worm gearboxes are designed for gear reduction, which means that the output speed is lower than the input speed. Additionally, the efficiency of the gearbox, friction, and other factors can affect the actual output speed. Calculating the input and output speeds is crucial for understanding the performance and capabilities of the worm gearbox in a specific application.

Vantaggi dell'utilizzo di un riduttore a vite senza fine nei sistemi meccanici

I riduttori a vite senza fine offrono numerosi vantaggi che li rendono adatti a diversi sistemi meccanici:

• Rapporto di riduzione elevato: I riduttori a vite senza fine offrono una significativa riduzione di velocità, risultando ideali per applicazioni che richiedono un elevato rapporto di riduzione senza la necessità di ingranaggi multipli.
• Design compatto: I riduttori a vite senza fine hanno un design compatto e salvaspazio, che ne consente l'utilizzo in applicazioni con spazio limitato.
• Autobloccante: I riduttori a vite senza fine presentano proprietà autobloccanti, il che significa che la vite senza fine può impedire alla ruota elicoidale di invertire il proprio movimento. Questo è vantaggioso per le applicazioni in cui il riduttore deve mantenere un carico in posizione senza l'ausilio di meccanismi di frenatura esterni.
• Funzionamento fluido e silenzioso: I riduttori a vite senza fine funzionano grazie a un movimento di scorrimento tra i denti, il che si traduce in un funzionamento più fluido e silenzioso rispetto ad altri tipi di riduttori.
• Trasmissione ad alta coppia: I riduttori a vite senza fine possono trasmettere elevati livelli di coppia, risultando quindi adatti ad applicazioni che richiedono una potente erogazione di coppia.
• Dissipazione del calore: Lo scorrimento tra la vite senza fine e la ruota elicoidale contribuisce alla dissipazione del calore, il che può essere vantaggioso in applicazioni che generano calore durante il funzionamento.
• Prestazioni stabili: I riduttori a vite senza fine offrono prestazioni stabili e affidabili, il che li rende adatti al funzionamento continuo in diversi sistemi industriali e meccanici.

Despite these advantages, it’s important to note that worm gearboxes also have limitations, such as lower efficiency compared to other gear types due to the sliding motion and potential for higher heat generation. Therefore, selecting the appropriate type of gearbox depends on the specific requirements and constraints of the application.

editor by CX 2024-01-10