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Slew drives

Product catalog summary

Company Profile
Comer Industries is a global leader in designing and producing advanced engineering systems and mechatronic solutions for power transmission. The company serves major manufacturers in agriculture, industrial machinery, and renewable energy sectors. Headquartered in Reggiolo, Italy, Comer Industries operates with Lean 6 Sigma methods across facilities in Italy and China, ensuring product and process excellence.

Mechatronics Research Center
Established in 1996, the Mechatronics Research Center in Reggiolo conducts applied research and innovation. It features 11 acoustically insulated test rooms equipped with advanced simulators. The center supports product development, reduces prototyping time, and accelerates time-to-market for new machines. Recognized by the Italian Ministry of Universities and Research, it employs 12 specialized engineers.

Products
Comer Industries offers a range of mechanical and hydraulic products, complemented by advanced engineering systems and mechatronic solutions. The PG PR series of planetary drives is highlighted for its efficiency and safety in applications like mobile crane turrets and crawler crane lattice booms. These drives undergo rigorous testing to ensure performance under extreme conditions.

Applications
Comer Industries' solutions are used in various sectors, including construction, marine, airport machinery, and municipal applications. Key applications for slew drives include mobile cranes, tower cranes, crawler cranes, deck cranes, stackers/reclaimers, drilling machines, and concrete pumps.

Technical Specifications
Materials used include alloy steels for shafts and gears, and grey or spheroidal cast iron for housings. Specific materials are available for low-temperature applications upon request.

Installation and Maintenance
The document includes installation instructions, mounting tolerances, and lubrication guidelines. It also covers modular brakes, motor couplings, and flanges for motors according to SAEJ 744C STD.

Testing and Certification
The Mechatronics Research Center conducts various tests, including approval, functionality, static, endurance, crash, temperature, structural, fatigue, and field tests. It also performs benchmarking and homologation for electric motors and new products.

Overview
This document provides technical specifications and guidelines for the application of rotation reducers in various types of cranes and material handling equipment within the extractive industry. It includes detailed information on torque, radial load, and other mechanical parameters essential for the selection and verification of gearboxes.

Main Applications

Mobile Cranes
Construction Cranes
Crawler Cranes
Port Cranes
Stackers/Reclaimers
Drilling Machines
Concrete Pumps

Specifications

TFEM [Nm]: Reference torque for FEM class M5[T5-L2] at 15 rpm.
T2MAX [Nm]: Maximum allowable torque for short-term applications.
FtFEM [N]: Allowable radial load on the output shaft for FEM class M5[T5-L2].
Ftmax [N]: Maximum allowable radial load ensuring a static safety factor of bearings.
i: Gearbox reduction ratio between input and output speeds.
n1max [rpm]: Maximum input speed for intermittent conditions.
n2 [rpm]: Reference output speed of the gearbox.
TBSTAT [Nm]: Minimum brake static torque before slipping.
P [bar]: Minimum pressure for full brake opening.
Pmax [bar]: Maximum allowable pressure in the brake circuit.

Conversion Factors

Torque and radial load conversion factors (K1 and K2) are provided for different mechanism groups and utilization classes, ensuring compatibility with FEM standards.

Verification Procedures

Define FEM application class and evaluate conversion coefficients for torque and radial load.
Calculate FEM reference values and verify that application values do not exceed these limits.
Contact Comer Industries Technical Sales Support for deviations in output speed or radial load position.

Example of Slew Drive Selection

Application type: Slew drive for crane with FEM class M4-T3-L3.
Verification of torque and radial load using conversion coefficients and catalog values.
Ensure selected slew drive meets application requirements.

Output Table
Detailed dimensions and specifications for various gearbox models, including allowable radial loads and torque values.

Specifications and Availability
The document provides detailed specifications for various pinion models, including dimensions, torque values, and maximum torque capacities. Pinions are supplied with a bottom stop plate, and other sizes are available upon request. Integral pinion shafts are available only on request. It is recommended to contact Comer Industries' Technical-Sales department to verify pinion availability.

Technical Data
The document includes tables listing technical data for different pinion models, such as rotational speed (N2 = 15 rpm), torque values (TFEM and T2MAX), and pinion codes with specifications like module (M), number of teeth (Z), and spline details according to DIN standards.

Installation Instructions
Proper installation is crucial for the optimal functioning and longevity of the gear reducers. Key steps include ensuring correct positioning using technical diagrams, cleaning treated surfaces, avoiding damage or sparks, and securing all components properly. Lubrication of centering points is advised to facilitate assembly. All fixing holes on the reducer flanges must be used, and installation should be performed by qualified personnel.

Eccentric Centering
PG PR reducers can be supplied with eccentric centering to ensure proper engagement between the pinion and the ring gear. The eccentric allows adjustment of the gear mesh clearance. A mark on the flange indicates the position of maximum eccentricity, which, when aligned with the ring gear, achieves maximum pinion/ring gear clearance.

Pinion/Ring Gear Engagement
To adjust the gear mesh clearance, the reducer must be rotated clockwise or counterclockwise after removing the fixing screws. This adjustment is facilitated by the eccentric centering on the output housing.

Drive Installation and Assembly Instructions
Assembly Requirements

Ensure correct positioning according to technical catalog and assembly drawings.
Clean mating surfaces with anti-rust products.
Assemble the drive without forcing, avoiding dents or sparks.
Ensure all components are correctly assembled and fixed.
Check for any obstructions that may compromise drive functioning.
Lubricate centering diameters for easier assembly onto the frame.
Use all fixing holes on drive flanges as per assembly drawing.
Assembly should be performed by qualified personnel with proper training and equipment.

Eccentric Assembly

Slew drives may have an eccentric flange for correct meshing between pinion and yaw bearing.
Eccentricity allows for backlash setting between pinion and yaw bearing teeth.
A specific notch on the output housing flange indicates the eccentricity reference.

Pinion/Yaw Bearing Meshing

To adjust backlash, remove fixing bolts and rotate the drive clockwise or counterclockwise.
Pinion shifting is facilitated by the eccentric flange on the output housing.

Mounting Tolerances

Allowable tolerances for different types of supports are specified in a table, with values for D, α, and other parameters.

Planetary Drives and Brakes

Planetary drives are equipped with hydraulic brakes designed for static or parking braking.
Brake lubrication is separate from the planetary gear units.
Recommended lubricant is ISO VG 32, though hydraulic lubricants are also suitable.

Hydraulic Motor Couplings

Adapters are categorized by motor manufacturer and grouped into families A, B, C, and D.
Selection involves identifying the desired entry, family, and reduction stages needed for gearbox size.
Contact Comer Industries Technical Sales Department for further assistance.

Flanges for Motors

Flanges are provided according to SAEJ 744C standards.

Catalog excerpts

corner industries planetary drives & axles Slew Drives comer industries

Open the catalog to page 1

Indice generale Table of Contents 1 Profilo dell'azienda Company Profile 2 Centro Ricerche di Meccatronica Mechatronics Research Center 3-4 Esempio di selezione riduttore Example of slew drive gearboxes selection 10 Tabella uscite Output table 11 Tabelle caratteristiche tecniche: Technical characteristics tables: Istruzioni per l'installazione Installation instructions 25-26 Tabella tolleranze di montaggio Mounting tolerances table 27 Freni modulari Modular brakes 28 Entrate di rette freno e attacco motore Direct input motor adaptor with brake 29 Predisposizioni per motori idraulici Hydraulic...

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PROFILO DELL'AZIENDA (EN) COMPANY PROFILE Corner Industries è leader a livello internazionale nella progettazione e produzione di sistemi avanzati di ingegneria e soluzioni di meccatronica per la trasmissione di potenza, destinati ai principali costruttori mondiali di macchine per l'agricoltura, l'industria e la produzione di energia rinnovabile. La sede principale dell'azienda si trova a Reggiolo (Reggio La progettazione e la produzione sono strutturate su quattro unità operative in Italia - a Reggio Emilia e a Matera, specializzate per linee di prodotto - e un'unità operativa in Cina. Sono...

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CENTRO RICERCHE DI MECCATRONICA Corner Industries effettua lo sviluppo, la sperimentazione e la prova dei propri prodotti nel Centro Ricerche di Meccatronica, realizzato nel 1996 a Reggiolo (Reggio Emilia) per la ricerca applicata e l'innovazione. Il Centro Ricerche si estende su una superficie coperta di 1.500 m2, con undici celle di sperimentazione e prova, perfettamente insonorizzate, dotate di attrezzature all'avanguardia e apparecchiature di simulazione in grado di riprodurre le situazioni di reale utilizzo e funzionamento delle trasmissioni sulla macchina operatrice. Le tecnologie utilizzate...

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MECHATRONICS RESEARCH CENTER Comer Industries advanced engineering systems are developed, tested and approved at the Mechatronics Research Center, which has been set up in 1996 at Reggiolo (Reggio Emilia) to conduct applied research and continuous innovation. The Mechatronics Center, covering an area of 1,500 m2 (16,000 ft2), has eleven test rooms, totally acoustics insulated, equipped with cutting edge devices and simulators that reproduce machine operating environment. Technologies used by the Center allow Comer Industries to acquire accurate data, essential for new product design and definition...

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La produzione di Corner Industries, accanto ai tradizionali componenti meccanici e idraulici per la trasmissione di potenza, comprende sistemi avanzati di ingegneria e soluzioni di meccatronica destinati alle macchine per l'agricoltura, l'industria e alle applicazioni per l'energia. La missione di Corner Industries si è progressivamente orientata dalla semplice offerta di prodotti e componenti alla proposta di sistemi completi e di servizio totale al cliente, per la risoluzione di tutte le problematiche nell'ambito della catena cinematica e della trasmissione di Corner Industries completes its...

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Le soluzioni Corner Industries per il settore industriale sono Un importante mercato di riferimento è rappresentato dal mondo delle costruzioni: i sistemi per la trasmissione di potenza Corner Industries sono infatti impiegati nelle gru, nei macchinari per il sollevamento e nelle macchine edili e movimento terra. Corner Industries solutions for the industrial sector are inno- A major strategic market is represented by the construction world: Comer Industries power transmission systems are used for cranes, lifting machinery, earthmoving and building ma- Comer Industries ha sviluppato inoltre applicazioni...

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RIDUTTORE / GEARBOX FRENO /BRAKE ' FEM: Federation Européenne de la Manutention- section I [Heavy lifting equipments] - 3rd edition 1998 comer industries planetary drives

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FATTORE DI CONVERSIONE DELLA COPPIA PER CLASSI DI FUNZIONAMENTO DIFFERENTI TORQUE CONVERSION FACTOR FOR DIFFERENT MECHANISM GROUPS FATTORE DI CONVERSIONE DEL CARICO RADIALE PER CLASSI DI FUNZIONAMENTO DIFFERENTI RADIAL LOAD CONVERSION FACTOR FOR DIFFERENT MECHANISM GROUPS I valori delle coppie trasmissibili TFEM e dei carichi radiali FtFEM relativi alla classe M5-T5-L2 ed i fattori di conversione K1 e K2 sono già comprensivi del coefficiente ym Allowable values for torques TFEM and radial loads FÍFEM related to class M5-T5-L2 and conversion factors K1 and K2 include already corresponding coefficient...

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GUIDA ALLA CLASSIFICAZIONE DI GRUPPI DI MECCANISMI (secondo FEM Section 1,3rd edition. Table T.2.1.3.5.) GUIDANCE FOR GROUP CLASSIFICATION OF A MECHANISM (according to FEM Section 1,3rd edition. Table T.2.1.3.5.) PROCEDURA DI VERIFICA DEL RIDUTTORE SLEW DRIVE VERIFICATION PROCEDURE Definizione della classe FEM di utilizzo (tab.3) Individuazione del coefficiente di conversione della coppia [K1] relativo alla suddetta classe (tab.1) Determinazione della coppia FEM di verifica Verifica che la coppia dell'applicazione sia inferiore alla coppia FEM di verifica Verifica che la coppia massima dell'applicazione...

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ESEMPIO DI SELEZIONE RIDUTTORE (EN) EXAMPLE FOR SLEW DRIVE SELECTION tipo di applicazione: rotazione gru rapporto riduttore richiesto: circa 96 supporto uscita riduttore richiesto: LFP coppia in uscita pignone : Ï2=19550 Nm velocità di rotazione pignone : ri2=15 rpm Utilizzando il riduttore PG1603 PR R.94,8 con TFEM (M5-T5- Se la coppia massima non supera quella di catalogo T2max = 31400 Nm il riduttore risulta idoneo per l'applicazione. Per la verifica dei cuscinetti occorre identificare il coeffi- Essendo indicato a catalogo FtFEM (M5-T5-L2) = 156000N per un PG1600 con supporto uscita LFP ad...

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TABELLA USCITE (EN) OUTPUT TABLE LFPE LNPFt comer industries planetary drives

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"I pignoni vengono forniti con fondello di arresto; altre misure disponibili "Loose pinion supplied with bottom stop plate; other sizes available on re- su richiesta. Alberi pignoni uscita integrali disponibili solo su richiesta. quest. Pinion shaft available only on request. Si consiglia di contattare il servizio Tecnico-Commerciale di Corner Indu- We recommend that you contact Comer Industries Technical-Sales départ- stries per verificare la disponibilità dei pignoni " ment to check the availability of pinions " comer industries planetary drives

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Slew drives

Slew drives

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