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PTO Drive shafts

PTO Drive shafts
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PTO Drive shafts

Product catalog summary
Company Profile
Comer Industries, established in 1970 in Reggiolo, Italy, is a prominent global manufacturer of gearboxes and PTO drive shafts for agricultural machinery. Renamed Comer Industries in 2002, the company is recognized for its extensive product range, international reach, and high-quality standards, evidenced by its ISO 9001 certification since 1993. Annually, Comer Industries produces 400,000 gearboxes in over 2,000 configurations and 200,000 PTO drive shafts, focusing on user safety and machine reliability.
Product Applications
Comer Industries' products are utilized in soil treatment, hay harvesting, fodder treatment, and crop irrigation machines. The company integrates mechanical, hydraulic, and electronic components to meet the demands of modern, technologically advanced agricultural machinery.
Comer Industries Overview
Comer Industries Spa is a mechatronics company specializing in advanced power transmission systems, offering mechanical and hydrostatic transmissions, along with engineering, logistics, and IT services for agricultural and industrial equipment. With over 880 employees and a turnover exceeding 170 million euros, the company operates globally, especially in Europe and North America, partnering with leading industrial OEMs.
Business Units
Comer Industries consists of several specialized business units: BU Gearboxes & Driveshafts, BU Planetary Drives, BU Fluid Power, and BU Axles & Wheel Drive Units, each focusing on specific product lines for industrial and agricultural machinery.
Research Centre Overview
Established in 1996, the Mechatronics Research Centre in Reggiolo, Italy, is dedicated to applied research and product innovation, reducing time-to-market for new machinery. The centre features eight soundproof test rooms with advanced testing capabilities.
Testing and Research Activities
  • Certification tests for commercial components
  • Functional and static tests
  • Characterization tests for components and devices
  • Endurance and crash tests
  • Temperature tests under load
  • Structural and field tests
  • Benchmarking

Recent research focuses on enhancing machine safety through electronic control devices integrated into mechanical transmission systems.
Cardan Joint Theory
The PTO drive shaft includes two cardan joints and a telescopic coupling, transmitting motion between tilted axles. Speed variations depend on the articulation angle, with deviations causing vibrations and noise.
Kinematic Characteristics
Standard PTO drive shafts with two cardan joints can cancel or combine irregularities. Uniform transmission occurs with equal articulation angles, while irregularities persist with unequal angles.
Constant Velocity Joint (CvJ)
The CvJ ensures equal angle distribution, eliminating rotation irregularities. Suitable for high articulation angles, CvJ joints enhance durability and reliability.
Torque Limiter Functionality
The torque limiter activates when operating torque exceeds a preset value, transmitting reduced power in pulses. It is recommended to disconnect the PTO during activation to prevent wear and overheating.
Specifications and Components
Various models of torque limiters are listed with specifications, including dimensions and torque capacities. Key components include the greaser, yoke support, hub, ratchet tooth, outer and inner springs, retaining washer, and snap ring.
Overrunning Clutch
This device allows motion transmission in one direction, disconnecting during stopping to prevent the tractor PTO from being driven by the implement.
Disc Clutch Torque Limiter
Specifications for different models include dimensions and torque capacities, managing torque through friction discs for controlled power transmission.
Safety Recommendations
Friction clutches can reach high temperatures. Users should avoid touching them and keep the area free of flammable materials to prevent fire risks.
Assembly Components
Detailed parts lists for various clutch models specify components such as springs, flanged yokes, bushings, lining rings, bolts, nuts, clutch supports, and pressure plates.
Closed Disc Clutch Torque Limiter Overview
Designed for agricultural machinery, this device engages when operational torque exceeds preset calibration, ensuring continued power transmission during torque peaks.
Specifications
Models (W42, W43, W44, W45) are detailed with dimensions and torque capacities.
Safety and Maintenance Recommendations
Users are advised to keep the area around the clutch free from flammable materials and avoid prolonged slipping.
Component Breakdown
Comprehensive parts list for different clutch models includes yoke supports, lining rings, hubs, pressure plates, and Belleville springs.
Ratchet Clutch Torque Limiter
Activates when operating torque exceeds the set value, transmitting reduced power in pulses.
Shear Bolt Torque Limiter
Briefly mentioned with an overrunning clutch, used in specific applications with shear bolts to limit torque.
Overview
Technical specifications and operational details for shear bolt torque limiter with an overrunning clutch and disc clutch torque limiter with an overrunning clutch.
Specifications
Devices available in various types with specific dimensions and torque capacities.
Components
Key components include bolts, nuts, yokes, greasers, circlips, retaining washer rings, gaskets, balls, leaf springs, ratchets, hubs, and torque limiter supports.
Functionality
Shear bolt torque limiter integrates a shear bolt mechanism and an overrunning clutch, providing protection against overloads.
Safety Recommendations
Monitor clutch settings to ensure proper operation. Keep the area clear of flammable materials and avoid prolonged slipping.
Additional Features
Devices can be requested for anti-clockwise rotation, useful in applications with large rotating masses.
Overview
Technical specifications and components for various types of disc clutches, including closed and half-opened disc clutch torque limiters.
Specifications
Components such as bolts, outer casings, bushings, lining rings, hubs, balls, pressure plates, Belleville springs, reaction rings, stop rings, collar springs, sliding sleeves, and snap rings are listed with part numbers and quantities.
Procedures
Assembly of closed disc clutch torque limiters (WF series) and half-opened disc clutch torque limiters (JF and RJF series) is outlined.
Safety Instructions
Users are warned about high temperatures clutches can reach during operation.
Recommendations
Use the clutch as a safety device against load peaks and for starting machines with high rotational inertia.
Key Data from Tables
Tables provide dimensions, torque values, and part numbers for different clutch models.
See more

Catalog excerpts

PTO Drive shafts-2

TEIL1: Allgemeine Information SEZIONE1: Informazioni generali CHAPITRE1: Informations gnrales TEIL 2: Ersatzteile SECTION1: General information SEZIONE 2: Parti di ricambio CHAPITRE 2: Pi驨ces de rechange TEIL 3: Gabeln SECTION 2: Spare parts SEZIONE 3: Forcelle CHAPITRE 3: Mchoires TEIL 4: Einfache und Doppelgabel SECTION 3: Yokes SEZIONE 4: Snodi e forcelle doppie CHAPITRE 4: Joints et doubles Mchoires TEIL 5: Rohre SECTION 4: Joints and double yokes SEZIONE 5: Tubi CHAPITRE 5: Tubes TEIL 6: Integrale Sicherheitsvorrichtungen > 3 SECTION 5: Tubes SEZIONE 6: Dispositivi di sicurezza integrali...

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PTO Drive shafts-3

TEIL 1: Allgemeine Information SEZIONE 1: Informazioni generali CHAPITRE 1: Informations gnrales SECTION 1: General information Vorstellung der Firma Presentazione azienda Presentation de la soci驩t Gelenkwellentheorie Company profile Teoria del giunto cardanico Thorie du joint de cardan Kinematische Eigenschaften Cardan joint theory Caratteristiche cinematiche Caract驩ristiques cinmatiques Nomogramm der Dreh-Ungleichfrmigkeit Kinematic characteristics Nomogramma irregolarit鶠 Nomogramme des irrgularits Weitwinkelgelenkwelle CvJ Irregularity alignment chart Giunto omocinetico CvJ Joint homocin驩tique...

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PTO Drive shafts-4

Comer Industries Gearboxes &Driveshafts progetta, produce e commercializza scatole ingranaggi ed alberi cardanici per l'industria delle macchine operatrici agricole ed industriali.Comer l'azienda che ha datovita a Comer Group, dal 2002 Comer Industries. Fondata nel 1970 a Reggiolo (RE), Comer Industries oggi il primo produttore mondiale di scatole ingranaggi e alberi car- danici per l'agricoltura. Una posizio- ne di primato raggiunta grazie alla pi驹 completa gamma di scatole ingranaggi esistente sul mercato, ad una capillare presenza sui mer- cati internazionali ed al riconosciu- to standard...

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PTO Drive shafts-5

Oggi Comer Industries Spa unasociet di Meccatronica che pro- getta, produce e commercializza sistemi avanzati per la trasmissione di potenza.Comer Industries propone unalinea completa di trasmissioni mec- caniche, idrostatiche e servizi di ingegneria, di logistica e di Information Technology per l'indu- stria delle macchine operatrici agricole ed industriali.Comer Industries opera da oltre 30anni nei principali paesi del mondo, in particolare d'Europa edel Nord America, dove 頩 partnerdei maggiori gruppi industriali del settore.Lazienda, con sede a Reggiolo(RE), impiega oltre 880 dipendenti con...

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PTO Drive shafts-7

Lalbero cardanico per uso agrico-lo Ҩ costituito da due giunti carda- nici e da un accoppiamento tele- scopico. Il giunto cardanico, com- posto da due forcelle e una cro- ciera, lelemento che consente di trasmettere il moto fra due assi inclinati. La costruzione del giunto cardanico 蒨 tale che durante la rotazione la velocit dellalbero in uscita non Ҩ sempre uguale a quella dellalbero in ingresso e questa differenza di velocitҠ dipende dallangolo di snodo del giunto (Fig1). Il rapporto di trasmis- sione in funzione dellҒangolo di snodo e dellangolo di rotazione Ҩ rappresentato in Fig.2. Pi il...

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PTO Drive shafts-8

CARACARATTERISTTERISTICTICHE CINEMAHE CINEMATICTICHEHE KINEMATIC CHARACTERISTICSKINEMATIC CHARACTERISTICS CARACARACTERISCTERISTIQUES CINEMATIQUES CINEMATIQUESTIQUES KINEMATISCHE EIGENSCHAFTENKINEMATISCHE EIGENSCHAFTEN > fig.3 1 2 2 fig.4 Lalbero cardanico standard Ҩcomposto da due giunti cardanici. Le irregolarit dei singoli giunti pos- sono quindi eliminarsi o comporsi reciprocamente. Quando gli angoli di snodo dei due giunti sono uguali, vedi disposizione W o dispo- sizione Z (Fig.3), la trasmissione omocinetica, cioਨ la velocit della forcella in uscita sempre uguale a quella in ingresso, eliminando...

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PTO Drive shafts-9

Valori indicativi,dipen- dono dalle masse in gioco. > i ammissibili a 540 rpm Generally permissiblevalues, depending onthe masses involved. i allowable at 540 rpm i admissible 540 t/min > i zulssig bei 540 UpM Valeurs indicatives, en fonction de la masse en jeu. Die Werte sind reineAnhaltswerte, da sievon den Massenabhतngen. > i ammissibili a 1000 rpm i allowable at 1000 rpm i admissible 1000 t/min i zulssig bei 1000 UpM Esempio / Example / Exemple / Beispiel : ऎ 1 = 0Ѱ, α 2 = 4, Ў 1- ю 2 = 4Ѱ i = 0,5% > 2 α 1 = 21, Ў 2 = 25Ѱ, α 1- α 2 = 4 i = 6% > L'irregolaritР iԔ del moto dipendedall' inclinazione...

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PTO Drive shafts-10

GIUNTGIUNTO OMOCINETICO OMOCINETICO CO CvvJJ CONSTANT VELOCITY JOINT CCONSTANT VELOCITY JOINT C vv JJ JOINT HOMOCINETIQUE CJOINT HOMOCINETIQUE CvvJJ WEITWINKELGELENKWELLE CWEITWINKELGELENKWELLE C vv JJ > Max.80 fig.6 fig.7 Il giunto omocinetico CvJ (giunto avelocitР costante) un doppio snodo con un sistema di centrag- gio che garantisce una eguale ripartizione dell'angolo di snodo fra le due forcelle (disposizione a W). La velocit della forcella in uscita 蠨 sempre uguale a quella in ingresso e non vi sono irregolarit di rotazio- ne. In un albero cardanico con giunto CvJ e un giunto standard (Fig.6),...

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PTO Drive shafts-12

Durata in ore Life time in hrs Lebensdauer in Std. .Dure de vie en heures Esempio V V 2 2 2 2 1 1 N N m m . . 5 5 4 4 r r p p m m 1 1 鰰 ➙ 1 1 8 8 h h 9 > Example 9 h h 1 1 а ( ( C C V V J J ) ) 1 1 r r p p m m 7 7 N N m m C C v v J J V V 6 6 > Exemple ➙ > Beispiel 9 9 h h 5 5 а ( ( V V ) ) 1 1 r r p p m m 7 7 N N m m ➙ V V 6 6 >

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PTO Drive shafts-14

INFORMAZIONIGENERALI PROTEZIONI N N-EN G G E E N N E E R R A A L L I I N N F F O O R R M M A A T T I I O O N N G G U U A A R R D D S S N N - - E E N N INFORMATIONS G GENERALES PROTECTEURS N N-EN A A L L L L G G E E M M E E I I N N E E I I N N F F O O R R M M A A T T I I O O N N E E N N S S C C H H U U T T Z Z V V O O R R R R I I C C H H T T U U N N G G E E N N N N - - E E N N CARDANI DIMENSIONI P PROFILI P P T T O O D D R R I I V V E E S S H H A A F F T T S S S S P P L L I I N N E E D D D D I I M M E E N N S S I I O O N N ARBRES A A C CARDANS DIMENSIONS P PROFILES G G E E L L E E N N K K W W...

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TEIL 2: Ersatzteile SEZIONE 2: Parti di ricambio CHAPITRE 2: Pices de rechange SECTION 2: Spare parts > Produktpalette Programme de production Production program Parti di ricambio Programma di produzione Spare parts Ersatzteile Pi蠨ces de rechange > 16 20 Produktpalette Programme de production Production program Parti di ricambio Programma di produzione Spare parts Ersatzteile Pices de rechange > 18 24 size="-1">

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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.