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Helical and bevel-helical gearboxes catalogue

Helical and bevel-helical gearboxes catalogue
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Helical and bevel-helical gearboxes catalogue

Product catalog summary
General Information
This document provides comprehensive guidelines on gearboxes and gearmotors, covering specifications, procedures, and standards. Key sections include measurement units, service factors, selection criteria, thermal power, backstop device checks, lubrication, installation, running-in, and maintenance.
Measurement Units
Units of measurement include Newtons (N) for loads, millimeters (mm) for dimensions, and kilowatts (kW) for power.
Service Factor
The service factor (FS) is essential for determining application type, considering load type, operation duration, and start-ups per hour. It must be equal to or lower than the gear unit service factor (Fs’).
Selection Process
Selection involves calculating input power based on required torque and determining the transmission ratio. Gearboxes or gearmotors are chosen based on criteria like motor speed and compatibility.
Thermal Power
Thermal power values indicate maximum admissible power under continuous duty at 30°C. Corrections are necessary for actual conditions using specified coefficients.
Verification and Overloads
Radial and axial loads must be checked against admissible values. Emergency overloads up to 100% of T2 torque are permissible, but frequent overloads require torque limiting devices.
Cooling Coefficient (fv)
Cooling coefficients vary from 1.45 for forced cooling with a dedicated fan to 0.5 in closed environments.
Back Stop Device Verification
Verify if the maximum output torque guaranteed by the backstop device is sufficient for the application. Load factor varies with operation conditions.
Application and Temperature Factors
Application factor depends on backstop device insertions per hour and operating hours per day. Temperature factor depends on ambient temperature.
Lubrication
Bearings are lubricated with synthetic grease. Lubricants should be chosen based on operating conditions, with viscosity being crucial.
Installation
Ensure proper alignment with the motor and driven machine. Use flexible couplings and install overload cutouts if necessary.
Specifications and Tolerances
Drive and output shafts should not exceed load limits. Elements must adhere to specific tolerances.
Assembly Instructions
Clean and lubricate surfaces before assembly. Use tie-rods and extractors, and protect oil seals during painting.
Pre-Operation Checks
Ensure correct lubricant quantity and plug positions. Use a breather plug with a valve if installed outdoors.
Operating Conditions
Intended for use at temperatures between -20°C and +40°C, up to 1000 meters altitude.
Running-in and Maintenance
Gradually increase power during initial hours. Change mineral oil after 500-1000 hours, synthetic oil after 12500 hours.
Bevel Helical Gearbox Characteristics
Available in various sizes and stages, with different input types. Made from durable materials and designed for high performance.
Direction of Shaft Rotation
To reverse output rotation, rotate the gearbox 180° around the input shaft.
Specifications
Torque application should not exceed 2% of maximum torque. Angular backlash values are provided.
Mounting Positions and Lubricant Quantity
Oil quantities are based on working positions and conditions. Technical consultation is advised for different conditions.
Radial and Axial Loads
Radial forces must not exceed admissible values. Specific formulas are provided for calculations.
Spare Parts List
Includes bearings, oil seals, and free wheels. Specific information is required when ordering.
Characteristics
Gear units are versatile, with options for mounting output flanges and backstop devices.
Input Speed
Performance calculations are based on 1400 min-1, with permissible speeds up to 3000 min-1.
Efficiency
Estimated based on reduction stages, with minor variations due to size and ratio.
Thermal Power
Values are provided for each gearbox size, considering synthetic oil use.
Technical Data
Includes input speed, torque, and power for various configurations.
Moments of Inertia
Specified for different gearbox sizes, referenced to the input shaft.
Additional Sections
Includes dimensions, second input options, accessories, and a spare parts list.
Specifications and Features
Details on shaft-mounted gearboxes, backstop devices, and lubrication requirements.
Torque and Load Specifications
Tables provide maximum rated torques and load specifications.
Angular Backlash
Measured by blocking the input shaft and rotating the output shaft.
Spare Parts and Maintenance
Regular maintenance and appropriate spare parts are essential for performance.
Additional Technical Data
Includes input speed, efficiency, thermal power, and dimensions.
Specifications and Dimensions
Detailed specifications and dimensions for various mechanical components.
Variator Operating Principle
Based on an epicyclic transmission principle for variable speed ratios.
Variator Characteristics
Lightweight construction, closed input flange, and compatibility with IEC B5 motors.
Technical Data
Includes motor power, poles, and output shaft dimensions.
Warranty Conditions
One-year warranty for manufacturing defects, with conditions for voiding.
General Information
This catalogue supersedes previous editions, with data subject to change.
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Catalog excerpts

Helical and bevel-helical gearboxes catalogue-1

TRAMEC INDEX GENERALITA’ Unita di misura Fattore di servizio Selezione Potenza termica Verifica del dispositivo antiritorno GENERAL INFORMATION Measurement units Service factor Selection Thermal power Check out of the backstop Lubrificazione Installazione Rodaggio Manutenzione device Lubrication Installation Running-in Maintenance ALLGEMEINES MaGeinheiten Betriebsfaktor Wahl Thermische Leistung Prufung der Rucklaufsperre Olschmierung Einbau Einfahren Wartung 2.0 RIDUTTORI AD ASSI ORTOGONALI T BEVEL HELICAL GEARBOX KEGELSTIRNRADGETRIEBE T T 3.0 RIDUTTORI AD ASSI PARALLELI Z PARALLEL SHAFT GEARBOX Z RIGHT ANGLE GEARBOX R RIGHT ANGLE GEARBOX L ELECTRIC MOTORS

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Helical and bevel-helical gearboxes catalogue-2

1.0 GENERAL INFORMATION 1.0 ALLGEMEINES 1.1 Unita di misura 1.1 Measurement units Carico Radiale Carico Assiale Dimensioni Fattore di servizio Massa Momento torcente riduttore Momento torcente motorid. Potenza motore Potenza corretta Potenza motoriduttore Potenza termica Potenza richiesta in uscita Rendimento dinamico Rapp. di trasm. nominale Rapporto di trasmissione reale Velocita albero entrata Velocita albero uscita Temperatura ambiente Rendimento Motori accoppiabili_ Radial load Axial load Dimensions Service factor Mass Gearbox torque Gearmotor torque Motor power Corrected power Gearmotor...

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Helical and bevel-helical gearboxes catalogue-3

Classe di carico Load class Lastklasse Carico uniforme Uniform load GleichmaeBig verteilte Last Classe di carico Load class Lastklasse APPLICAZIONI / APPLICATIONS / ANWENDUNGEN Agitatori per liquidi puri Alimentatori per fornaci Alimentatori a disco Filtri di lavaggio con aria Generatori Pompe centrifughe Pure liquid agitators Fournace feeders Disc feeders Air laundry filters Generators Centrifugal pumps Trasportatori con carico uniforme Uniform load conveyors Ruhrwerke fur reine Flussigkeiten Beschickungsvorrichtungen fur Brennofen Telleraufgeber Spulluftfilter Generatoren Kreiselpumpen Forderer...

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Helical and bevel-helical gearboxes catalogue-4

Determinare la potenza in entrata P’ (in Calculate input power P’ (on the basis of Bestimmen Sie die Antriebsleistung P’ (je base alla coppia T2 richiesta dall’applica- the torque T2 required by the application), nach dem bei der Anwendung erforderzione) con la seguente formula: using the following formula: lichen Drehmoment T2) mit Hilfe der folgenden Formel: Calcolare il rapporto di trasmissione con Calculate the transmission ratio with the Berechnen Sie das Untersetzungsverla relazione: following equation: hältnis mit Hilfe der Gleichung: Scegliere il fattore di servizio FS dell’ ap- Select...

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Helical and bevel-helical gearboxes catalogue-5

Verificare che i carichi radiali agenti sugli alberi rientrino nei valori ammissibili riportati nelle relative tabelle. Tali valori (FR2) si riferiscono a carichi che agiscono a metà sporgenza dell’albero, per cui se il punto di applicazione è diverso, è necessario effettuare il calcolo dei nuovi valori ammissibili alla distanza (y) desiderata. Check that the radial loads on the shafts fall within to the admissible values reported in the relative tables. Reported values (FR2 refer to loads which affect the shaft at the half-way point of its projection; if the point of application is different,...

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Helical and bevel-helical gearboxes catalogue-6

ft = coefficiente di temperatura (v. tab. 3) ft = temperature coefficient (see table 3) ft = Temperaturkoeffizient (siehe Tabelle 3) Dove Dt sono i minuti di funzionamento in un'ora Dt is minutes of operation per hour 1.5 Check of back stop device 1.5 Verifica del dispositivo antiritorno Dopo aver correttamente selezionato il riduttore, occorre verificare se il valore del momento torcente T2M max garantito all’asse uscita del riduttore dal dispositivo antiritorno, considerate le reali condizio-ni di esercizio, e sufficiente a garantire il buon funzionamento dell’applicazione. Deve pertanto...

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Helical and bevel-helical gearboxes catalogue-7

fa: fattore di applicazione, ricavabile dal- fa: la seguente tabella (tab. 5) in funzio-ne del numero di inserzioni/ora e dal numero di ore di funzionamen to al giorno del riduttore application factor, as shown in the fa: following table (tab. 5), depending on the number of backstop device insertions per hour and the number of gearbox operating hours per day. Anwendungsfaktor, wie es in der fol -genden Tabelle (Tab.5) angegeben % wird. Der Anwendungsfaktor hangt von der Zahl der Einschaltungen der Rucklaufsperre pro Stunde und von Betriebsstunden des Getriebes pro Tag ab. ft: fattore di temperature...

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Helical and bevel-helical gearboxes catalogue-8

I cuscinetti dell ’albero veloce vengono sempre lubrificati con grasso a base sin tetica; altri cuscinetti vengono lubrificati solo se la posizione di montaggio non ne garantisce la corretta lubrificazione. The bearings mounted on the input shaft are supplied with grease, synthetic base; the other bearings are lubricated only if the mounting position does not assure a correct lubrication. Una scelta oculata del tipo di lubrifican te, in funzione delle condizioni operative e ambientali, consente ai riduttori di rag giungere le prestazioni ottimali. Le prestazioni dei riduttori indicate nelle tabelle...

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Helical and bevel-helical gearboxes catalogue-9

1.7 Installazione Montare il riduttore in modo tale da elimi -nare qualsiasi vibrazione. Curare particolarmente l'allineamento del riduttore con il motore e la macchina da comandare interponendo dove e possibi-le giunti elastici od autoallineanti. Quando il riduttore e sottoposto a sovrac-carichi prolungati, urti o pericoli di bloc-caggio, installare salvamotori, limitatori di coppia, giunti idraulici od altri dispositivi similari. Fare attenzione a non superare i valori consentiti di carico radiale ed assiale che agiscono sugli alberi veloce e lento. Assicurarsi che gli organi da montare sui riduttori...

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Helical and bevel-helical gearboxes catalogue-10

Prima di ef fettuare il montaggio pulire e Before assembling, clean and lubricate Vor der Montage sind die Flächen zu reilubrificare le superfici al fine di evitare il the surfaces to prevent seizure and con- nigen und zu schmieren, um Festfressen pericolo di grippaggio e l’ossida zione da tact oxidation. bzw. Kontaktoxidation zu vermeiden. contatto. Il montaggio va effettuato con l’ausilio di tiranti ed estrattori utilizzando il foro fi lettato posto in testa alle estremità degli alberi. Durante la verniciatura si consiglia di protteggere il bordo esterno degli anelli di tenuta per evitare che...

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