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Catalog

Product catalog summary

Description of Gear Units
This section provides an overview of gear units, detailing configurations such as flanged and foot versions, and universal input options. It emphasizes understanding the effective ratio, input and output configurations, and mounting positions.

Technical Descriptions

Reduction Ratio (ieff): Indicates the relationship between input and output speeds, with modular options available.
Output Torque (T2): Calculated for 10,000 hours of operation based on ISO standards.
Max Torque (T2MAX): The peak permissible output torque for short durations, considering gear and shaft fatigue resistance.
Nominal Torque (TN): Defines the conventional torque for gear unit size, aligning with ISO limit torque.
Nominal Power (P2): Combines torque value for 10,000 hours with output speed, requiring auxiliary cooling if thermal ratings are exceeded.
Thermal Rating (PT): Continuous power transmission capability under specific conditions, related to maximum permissible temperatures.
Input Speed (n1): Catalog provides three input speed values to cover most industrial applications.

Service Factor

Application Factor (KA): Defined by the type of prime mover and driven machine, considering load variations and transmission impacts. Consultation with Brevini Riduttori is advised for different prime movers or durations beyond 10,000 hours.

Specifications
Operating position: Horizontal
Ambient temperature: 30°C
Working environment: Large space

Gear Reducer Selection
Required ratio: 810
Application factor (KA): 1.25
Torque for selection (T2R): 6125 Nm
The selected gear unit must have a reference torque (T2) greater than T2R.

Selection Process
1. Select the TN column value immediately greater than 6125 Nm, which is 6400 Nm.
2. The appropriate gearbox type is size 065.
3. Select the 'ieff' value closest to the required ratio of 810, which is 771.8.
4. For 1500 min-1, the corresponding T2 is 7348 Nm, indicating the gearbox configuration is 'EQ4065'.

Gearbox Specifications
Maximum torque (T2max) for EQ4065: 10000 Nm
Thermal capacity (PT) for EQ4065: 8 kW
Adjusted thermal capacity (PT1): 6.8 kW
Power required by the application: 0.97 kW
No auxiliary cooling system is required as 6.8 kW > 0.97 kW.

Important Notes
Applications with different duration values, input speeds, variable load and speed cycles, or axial loads require separate analysis using dedicated calculation programs.

Specifications
Details specifications for mechanical components, including male shafts and multidisc brakes. Components are designed to fit directly onto gear units with universal input type 00.

Procedures
Outlines the procedure for selecting and using multidisc brakes, emphasizing braking torque in relation to required output torque and maximum torque (T2max).

Standards and Recommendations
Recommendations include using negative brakes for safety or parking only, not for dynamic braking. Guidelines for lubrication and the use of hydraulic oils are provided.

Key Data from Tables and Charts
Tables provide measurements and codes for various models of shafts and brakes, including static braking torque, release pressure, and oil volume requirements.

Critical Information
Key parameters include effective braking torque, conditions for brake selection, and the importance of proper lubrication.

Technical Specifications
Specifications for universal multidisc brakes, specifically models FL620.U and FL635.U, including brake release pressure, maximum pressure, and oil volume for brake release control.

Universal Inputs
Allows for the coupling of various motor types using a special flange and adapter.

Motor Adaptors
Specified under SAE J 744C - NEMA standards, providing dimensions for cylindrical and splined shafts.

Supply Conditions
Gear units are painted with a synthetic primer in blue "RAL 5010" for protection in normal industrial environments.

Storage Conditions
For storage over two months, protect shafts with grease or rust inhibitors and fill the gearbox with recommended oils.

Installation
Installation must be performed by trained personnel, ensuring rigid structures with flat, unpainted support surfaces and proper alignment with the driven shaft.

Specifications
Use screws of at least class 10.9 tightened to 75% of the yield limit.

Installation Procedures
Gear reducers should be installed by competent technicians, following all technical instructions.

Torque Arm Construction and Anchoring
Instructions are provided for the construction and anchoring of the torque arm.

Lubrication
Brevini gear units are supplied without lubricant; users must fill them correctly before starting the machine.

Lubrication Specifications and Recommendations
Hydrodynamic Lubrication: Adhere to maintenance intervals to prevent excessive deterioration of the oil's lubricating properties.

Oil Types
Oils are categorized into three main families: Mineral oils, Poly-Alpha-Olefin synthetic oils, and Poly-Glycol synthetic oils.

Additional Oil Types
Hydraulic oils are used for negative brakes, with biodegradable options available for environmental protection.

Contamination Control
An auxiliary oil circulating system with filters can control contamination levels and stabilize operating temperatures.

Contamination and Lubrication
Metal microparticles can contaminate the oil, shortening bearing life and causing premature gear unit failure.

Lubricant Oils Table
Includes a comprehensive table of lubricant oils for general use, listing various manufacturers and types of oils.

Food-Grade Lubricants
A table of lubricants suitable for food use is provided, approved according to USDA-H1 and NSF-H1 specifications.

Oil Control without Forced Lubrication
For horizontal gearbox mounting, the correct oil level is at the center line.

Oil Control Indications with Non-Forced Lubrication

Horizontal Mounting: For horizontal mounting of the reducer, the normal oil level should be at the centerline.
Visual or Electrical Verification: To install a visual or electrical verification instrument, follow the schematic in Fig. 9.

Expansion Tank for Vertical Mounting

Vertical Mounting: When mounting vertically, certain rules must be followed.
Dimensioning: The oil expansion volume (Ve) at operating temperature must be determined using a specific formula.
Residual Air Removal: Connect the highest part of the gear unit to the upper part of the expansion tank.

Vertical In-Line and Right-Angle Versions

Full Filling: Gear units must be completely full, and the expansion tank must be fitted.
Visual Checking Instrument: If a visual checking instrument is desired, it should be placed on the side of the tank.

Auxiliary Cooling and Filtering Systems

Cooling Requirement: If the transmitted power exceeds the thermal power dissipated by the gear unit, an auxiliary cooling system is necessary.
Cooling Units: Brevini Riduttori offers three cooling units capable of dissipating 5, 10, and 20 kW respectively.

Oil Quantity

Various models and their corresponding oil quantities are listed, indicating the required oil volume for different configurations.

Catalog excerpts

Configurazione entrata Input configuration Supporti maschio in entrata Cylindrical male input shaft Freni lamellari Multidisc brakes Entrata universale Universal input Mounting position Model code example

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Configuration entree Supports males en entree Soportes macho en la entrada Suportes macho na entrada Frenos laminares Freios lamelares Entree universelle Entrada universal Entrada universal

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Rapporto di riduzione ieff Reduction ratio ieff Übersetzungzverhältnis ieff Rappresenta la relazione fra la velocità in ingresso n1 ed uscita del riduttore n2. La modularità della gamma proposta da Brevini Riduttori permette la disponibilità di altri rapporti oltre a quelli indicati: consultare Brevini Riduttori per la eventuale disponibilità di ulteriori rapporti. It represents the ratio between gear unit input and output speed. The modularity of the Brevini Riduttori range offers the availability of other ratios in addition to those given: consult Brevini Riduttori for the availability of further...

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Rapport de réduction ieff Relação de redução ieff Il représente la relation entre la vitesse en entrée n1 et la vitesse en sortie du réducteur n2. La modularité de la gamme proposée par Brevini Riduttori permet de disposer d’autres rapports en plus de ceux indiqués: consulter Brevini Riduttori pour l’éventuelle disponibilité d’autres rapports. Es la relación entre las velocidades de entrada n1 y de salida del reductor n2. La gama ofrece muchas otras relaciones además de las indicadas: contacte con Brevini Riduttori para obtener más información. Representa a relação entre a velocidade de entrada...

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Il fattore di applicazione viene denito dal tipo di motore primo e dal tipo di macchina azionata dal riduttore. Si tratta di un valore empirico stabilito dalle norme attraverso l’esperienza storica delle diverse applicazioni e tiene conto delle variazioni di carico, degli urti della trasmissione e della incertezza relative alla variazione dei parametri che concorrono alla trasmissione della potenza. L’importanza della macchina azionata è fondamentale nella individuazione del fattore KA in quanto i motori utilizzati in combinazione con i riduttori sono normalmente elettrici oppure idraulici e...

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Le facteur d’application est déni par le type de moteur primaire et par le type de machine menée. Il s’agit d’une valeur empirique xée par les normes par le biais de l’historique des différentes applications et tient compte des variations de charge, des chocs de la transmission et l’incertitude relative à la variation des paramètres qui participent à la transmission de la puissance. L’importance de la machine menée est fondamentale pour la détermination du facteur KA dans la mesure où les moteurs utilisés en combinaison avec les réducteurs sont normalement électriques ou hydrauliques et donc...

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MACCHINA COMANDATA DRIVEN MACHINE ANGETRIEBENE MASCHINE MACCHINA COMANDATA DRIVEN MACHINE ANGETRIEBENE MASCHINE Ciclo continuo- a vite 3 Bridge Brückenkran Continuous screw operation Intermittent screw operation Ciclo intermittente- a vite 3 Trolley Travel Kontinuierlicher Schneckenbetrieb Movimentazione carrello MACCHINA COMANDATA DRIVEN MACHINE ANGETRIEBENE MASCHINE Schnecken - Aussetzbetrieb Stone or ore Steine und Metall Cable reel Kabelaufwickler Planer feed Trasbordatore a catena Transfers -chain Testa portafresa Cutter head drives Lavorazione metalli Food industry Metal mills Cereal cooker...

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MACHINES MENÉES MÁQUINA GOBERNADA MÁQUINA COMANDADA Ponte rolante Ciclo continuo - de tornillo Movimentação carrinho Ciclo intermitente - de tornillo Aserraderos Processamento de tronco Raboteuses MACHINES MENÉES MÁQUINA GOBERNADA MÁQUINA COMANDADA Machines à travailler les grumes Ciclo contínuo – de parafuso Manutention chariot Desplazamiento del carro 3 MACHINES MENÉES MÁQUINA GOBERNADA MÁQUINA COMANDADA Ciclo intermitente – de parafuso Cailloux et métaux Piedras y metales Bobina para el cable Transportador Commande tête d’outil 2 Mezcladoras para masa Cycle continu Ciclo continuo Ciclo contínuo...

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MACCHINA COMANDATA DRIVEN MACHINE ANGETRIEBENE MASCHINE MACCHINA COMANDATA DRIVEN MACHINE ANGETRIEBENE MASCHINE Size press Super calender Papierherstellung Agitator (mixer) Rührwerke Mischer Rührwerke für üssige Stoffe 1.25 Screens Schirme Lavaggio ad aria Waschmaschine (WS-Motor) Brechanlage Alimentatore sminuzzatrice Rotary-stone or gravel Kiesmaschinen Batch mixers Mescolatore a ciclo continuo 1.25 Coating rolls Continuous mixers Sugar industry Zuckerindustrie Beet slicer Frantoi per canna Cane knives Späne Rinde Tronchi Rubber industry Crushers Zerkleinerer Batch mixers Baumstämme Essicatoi...

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MACHINES MENÉES MÁQUINA GOBERNADA MÁQUINA COMANDADA Trancheuses à bande Cizalladoras de cintas MACHINES MENÉES MÁQUINA GOBERNADA MÁQUINA COMANDADA Hornos para cemento Forno para cimento Mélangeurs Misturadores Super calendar Espesadores (motor de corriente alternada) Agitateurs mélangeurs Agitadores Mezcladoras Agitadores Misturadores Espesadores (motor de corriente continua) Lavadora (motor de corriente alternada) Agitadores de substâncias líquidas Laveurs (CC moteur à cour. cont.) Lavagem a ar Rotatifs pour gravier Giratorias para grava Chaînes d’alimentation des déchiqueteuses Rotativos para...

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Fattore che considera il numero di avviamenti nell’unità di tempo. This factor considers the number of starts in the unit of time. Dieser Faktor berücksichtigt die Anzahl der Starts pro Zeiteinheit. Avviamenti orari / Starts per hour / Starts pro Stunde 1-5 La temperatura di funzionamento ideale è compresa tra 50 °C e 70 °C. Per brevi periodi si possono raggiungere 80 °C. Il sistema migliore per tenere sotto controllo la temperatura è quello di ricorrere ad un sistema ausiliario di scambio termico. Per temperature ambiente molto basse, inferiori a -15 °C, o di funzionamento superiori a 80 °C,...

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