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PTO Drive shafts

PTO Drive shafts
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PTO Drive shafts

Product catalog summary
Company Overview
Comer Industries, established in 1970 in Reggiolo, Italy, is a prominent global manufacturer specializing in gearboxes and PTO drive shafts for agricultural and industrial machinery. The company is known for its wide product range and international market presence, supported by ISO 9001 Quality Certification since 1993. It integrates mechanical, hydraulic, and electronic systems to cater to modern agricultural demands.
Product Specifications
Comer Industries produces 400,000 gearboxes annually in over 2,000 configurations, with speed ratios and power levels ranging from 3.6 to 150 KW. Additionally, 200,000 PTO drive shafts are manufactured each year, focusing on user safety and machine reliability.
Key Product Lines
  • Gearboxes & Driveshafts: Utilized in soil treatment, hay harvesting, and crop irrigation machines.
  • Planetary Drives: Specializes in planetary gear drives and wheel drives for mobile and industrial machinery.
  • Axles & Wheel Drive Units: Produces axles, electric wheels, and hydraulic/electrical steering systems.
Market Presence
Comer Industries operates globally, especially in Europe and North America, partnering with leading industrial OEMs. It offers comprehensive mechanical and hydrostatic transmission systems, along with engineering, logistics, and IT services.
Research and Development
The Mechatronics Research Centre, established in 1996 in Reggiolo, Italy, spans 1,500 square meters and includes eight soundproof test rooms with advanced devices and simulators. Key activities include certification tests, functional and static tests, endurance and crash tests, temperature and structural tests, field tests, and benchmarking. Recent research focuses on machine safety and integrating electronic control devices into mechanical transmission systems.
Technical Specifications
The document details the construction and function of PTO drive shafts used in agricultural applications, consisting of two cardan joints and a telescopic coupling. The articulation angle affects the speed difference between input and output shafts, potentially causing vibrations and noise.
Kinematic Characteristics
Standard PTO drive shafts with equal articulation angles in their joints ensure uniform transmission, eliminating irregularities. Different angles can cause motion irregularities, graphically represented in the document.
Constant Velocity Joint (CvJ)
The CvJ is a double universal joint that maintains equal speed between input and output yokes, eliminating rotation irregularities. Systems combining CvJ and standard joints require small articulation angles for optimal performance. For high articulation angles, dual CvJ joints are recommended.
Ordering Instructions
Customers can request joints with different terminals than those listed in the standard COMER Industries Driveshafts line. It is essential to specify the reference of the yoke desired to accompany the yoke for the shaped tube.
Data Tables
The document contains tables listing dimensions and references for different joint types, providing measurements such as diameter, length, and reference numbers for both outer and inner joints.
Customization Options
Joints can be customized with different end pieces than those typically available. Customers should specify their requirements when ordering to ensure the correct configuration is provided.
Specifications and Safety Requirements
Before starting work, ensure all transmission safety guards are in place and functioning efficiently. Replace any damaged or missing components with original spare parts. The transmission must be correctly connected to the tractor and machinery, with chains allowing movement under all conditions. Stationary machines should be coupled to the tractor, respecting the overlap of telescopic elements. Ensure the drive shaft is suitable in length and size, and check if a torque limiter or overrunning clutch is needed.
Operating Instructions
During use, ensure the drive shaft does not exceed speed and power conditions as per the machine's manual. Engage any safety devices on the machine side, and protect all rotating parts. The PTO drive shaft joint should not operate continuously at angles close to 80°, only briefly during steering. Work clothes should not have parts that can get tangled, as contact with rotating parts can cause serious accidents. Ensure telescopic elements overlap appropriately, and joint angles are limited and equal. Disengage the power take-off for operations exceeding 35°.
General Rules
Transport the transmission horizontally to prevent accidents or damage. Do not use chains for transport or support after use; use a special support. Turn off the engine and remove the key before approaching machinery or performing maintenance. Ensure the work area is illuminated during installation and use in poor visibility or nighttime conditions. Clutches can become very hot; do not touch and keep the area clean to reduce fire risk.
Safety Shrouds
The Machine Directive (98/37/CEE) requires a safety shroud on operating machinery, ensuring at least 50mm overlap with the drive shaft safety guard. Comer Industries S.p.A. shrouds comply with international standards and come with a CE instruction sheet. The machine manufacturer is responsible for selecting the appropriate shroud based on use conditions. Shroud screws and washers must remain within the flat surface and not be loose. Replace damaged shrouds with original spare parts.
General Specifications and Safety Guidelines:
The document outlines the importance of using original parts for replacements to ensure safety and functionality. It specifies that the shroud must overlap the drive shaft safety guard by at least 50 mm. It also advises against using the shroud as a support or footboard and emphasizes that any openings must be securely closed.
Section 10: Splined Dimensions and Units Conversions:
This section provides detailed measurements for splined dimensions and includes conversion tables for various units of measurement. The data includes specific diameters and tolerances for different profiles, ensuring precise compatibility and functionality in mechanical applications.
Global Contact Information:
The document lists contact details for Comer Industries' global offices and distributors across various countries, including Argentina, Australia, Brazil, Canada, China, and many more. Each entry provides telephone and fax numbers, email addresses, and contact persons, facilitating communication and support for customers worldwide.
Key Takeaways:
  • Ensure the use of original parts for replacements.
  • Maintain a minimum overlap of 50 mm for safety guards.
  • Do not use protective components as supports.
  • Refer to detailed dimensions and conversion tables for precise application.
  • Utilize global contact information for support and inquiries.
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Catalog excerpts

PTO Drive shafts-1

comer industries Spare Parts comer industries

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INDEX comer industries INDEX driveshafts SEZIONE 1: Infotmazioni generali SECTION 1: General information CHAPITRE 1: Informations generates TEIL 1: Allgemeine Information 4: Snodi e forcelle doppie 4: Joints and double yokes 4: Joints et doubles Machoires 6: Dispositivi di sicurezza integrali 6: Integral safety devices 6: Dispositifs de securite integraux 7: Dispositivi di sicurezza flangiati 7: Modular safety devices 7: Dispositifs de securite modulaires 9: Nel segno della sicurezza 9: Sous le signe de la securite SEZIONE 10: Dimensioni profili e conversioni delle unita di misura SECTION 10:...

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CHAPITRE 1: Informations générales TEIL Presentazione azienda Company profile Presentation de la société Vorstellung der Firma Teoria del giunto cardanico Cardan joint theory Théorie du joint de cardan Gelenkwellentheorie Caratteristiche cinematiche Kinematic characteristics Caractéristiques cinématiques Kinematische Eigenschaften Nomogramma irregolarità Irregularity alignment chart Nomogramme des irrégularités Nomogramm der Dreh-Ungleichförmigkeit Giunto omocinetico CvJ Constant velocity joint CvJ Joint homocinétique CvJ Weitwinkelgelenkwelle CvJ Potenze e coppie trasmissibili Power and torque...

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Presentazione azienda Company profile Presentation de la societE Vorstellung der Firma PRESENTATION “GEARBOXES & DRIVESHAFTS” BESCHREIBUNG DES “GEARBOXES & DRIVESHAFTS” PROFILO “GEARBOXES & DRIVESHAFTS” “GEARBOXES & DRIVESHAFTS” PROFILE Comer Industries Gearboxes & Driveshafts progetta, produce e commercializza scatole ingranaggi ed alberi cardanici per l'industria delle macchine operatrici agricole ed industriali. Comer Industries Gearboxes & Driveshafts designs, builds and sells gearboxes and PTO drive shafts for agricultural and industrial equipment. Comer Industries Gearboxes & Driveshafts...

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Presentazione azienda Company profile Presentation de la societE Vorstellung der Firma PROFILO COMER INDUSTRIES COMER INDUSTRIES PROFILE PRESENTATION DU COMER INDUSTRIES BESCHREIBUNG DER ”COMER INDUSTRIES” Oggi Comer Industries Spa é una società di Meccatronica che progetta, produce e commercializza sistemi avanzati per la trasmissione di potenza. Today, Comer Industries Spa is a Mechatronics company that designs, builds and sells advanced power transmission systems. Aujourd'hui Comer Industries Spa est une société de mécanique électronique qui développe, fabrique et commercialise des systèmes...

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Presentazione azienda Company profile Presentation de la societE Vorstellung der Firma CENTRO RICERCHE DI MECCATRONICA MECHATRONICS RESEARCH CENTRE CENTRE DE RECHERCHES EN MECANIQUE ELECTRONIQUE FORSCHUNGSZENTRUM FÜR ELEKTRONISCHE MECHANIK Ricerca applicata ed innovazione di prodotto Applied research and product innovation Recherche appliquée et innovation du produit Angewandte Forschung Produkterneuerung. Comer Industries effettua lo sviluppo, la sperimentazione e la prova dei suoi prodotti nel Centro Ricerche di Meccatronica, realizzato nel 1996 a Reggiolo (RE) per la ricerca applicata e l'innovazione...

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Teoria del giunto cardanico Cardan joint theory ThEorie du joint de cardan Gelenkwellentheorie L’albero cardanico per uso agricolo è costituito da due giunti cardanici e da un accoppiamento telescopico. Il giunto cardanico, composto da due forcelle e una crociera, è l’elemento che consente di trasmettere il moto fra due assi inclinati. La costruzione del giunto cardanico è tale che durante la rotazione la velocità dell’albero in uscita non è sempre uguale a quella dell’albero in ingresso e questa differenza di velocità dipende dall’angolo di snodo del giunto (Fig1). Il rapporto di trasmissione...

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Caratteristiche cinematiche Kinematic characteristics Caracteristiques cinematiques Kinematische Eigenschaften L’albero cardanico standard è composto da due giunti cardanici. Le irregolarità dei singoli giunti possono quindi eliminarsi o comporsi reciprocamente. Quando gli angoli di snodo dei due giunti sono uguali, vedi disposizione W o disposizione Z (Fig.3), la trasmissione è omocinetica, cioè la velocità della forcella in uscita è sempre uguale a quella in ingresso, eliminando quindi gli effetti indesiderati. In tutte le altre angolazioni (Fig.4) rimane sempre una irregolarità che può essere...

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Nomogramma irregolarità di rotazione dell'albero cardanico PTO DRIVE shaft rotation irregularity alignment chart Nomogramme des irregularites de rotation de l'arbre a cardan Nomogramm der Dreh-UNgleichFörmigkeit der Gelenkwelle Valori indicativi, dipendono dalle masse in gioco. Generally permissible values, depending on the masses involved. Valeurs indicatives, en fonction de la masse en jeu. Die Werte sind reine Anhaltswerte, da sie von den Massen abhängen. ammissibili a 540 rpm allowable at 540 rpm admissible à 540 t/min zulässig bei 540 UpM ammissibili a 1000 rpm allowable at 1000 rpm admissible...

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Giunto omocinetico CvJ Constant velocity joint CvJ Joint homocinetique CvJ Weitwinkelgelenkwelle CvJ Il giunto omocinetico CvJ (giunto a velocità costante) è un doppio snodo con un sistema di centraggio che garantisce una eguale ripartizione dell'angolo di snodo fra le due forcelle (disposizione a W). La velocità della forcella in uscita è sempre uguale a quella in ingresso e non vi sono irregolarità di rotazione. In un albero cardanico con giunto CvJ e un giunto standard (Fig.6), l'irregolarità totale è dovuta al solo giunto standard, che perciò deve lavorare a piccoli angoli di snodo. Nel caso...

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Potenze e coppie trasmissibili Power and torque ratings Puissance et couple TRANSMISSIBLES Übertragbare Leistungen und Drehmomente coppia dinam. max. max.dynamic torque couple dynamique max. max.dynam. Drehmomente Tipo Type Type Typ * E’ lainmassima coppia trasmissi-il bile rotazione. Rappresenta massimo valore di coppia applicabile per il quale la durata può essere determinata mediante il nomogramma. V alori e condizioni di lavoro continuo, angolo di snodo 5°, durata 1000 ore. It is the max. transmissible torque couple maximum transmax. * during the rotation. It represen- * C'est le en rotation....

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*Prices are pre-tax. They exclude delivery charges and customs duties and do not include additional charges for installation or activation options. Prices are indicative only and may vary by country, with changes to the cost of raw materials and exchange rates.