CATALOGUE OF THERMOPLASTIC GEARS
CATALOGUE OF THERMOPLASTIC GEARS
This document is a catalogue from Stagnoli Gears, detailing their range of standard molded technopolymer mechanical transmission components. Stagnoli has been in the technopolymer gear sector since 1981, offering a wide range of customizable gears and components for various industries.
The primary material used is a polyamide-based technopolymer, known for its hardness, resistance to wear, torsion, and chemicals. The gears are used in industries such as printing, glass and ceramic machinery, packaging, food processing, automation, and more.
The catalogue includes spur gears, bevel gear pairs, sprockets, pulleys, gear couplings, planetary gears, racks, and other technical articles. Products can be customized and are available in various materials like PA6, POM-C, and Polyketone.
The document provides technical data on tensile strength, temperature of use, and friction coefficients for different materials. It also includes chemical resistance information, indicating how various chemicals affect the materials used.
The catalogue concludes with sales conditions, emphasizing the company's commitment to quality and customer satisfaction.
The document provides detailed specifications for a series of spur gears made from a polyamide-based technopolymer reinforced with glass fiber, colored grey. The gears are part of a normal series in PA6+30% GF with a pressure angle of 20°.
The maximum applicable torque for each gear is determined using a proprietary methodology combining theoretical calculations and experimental data from fatigue tests. For static applications, low RPM (<100), or low use coefficient, the torque may be up to 50% higher than the values listed.
The gears are produced through injection molding with a rough bore. Further machining details are available in the appendix.
The document lists various modules (0.5, 1, 1.5, 2, 2.5, 3) with corresponding dimensions and torque values. Each module has a specific range of gear sizes and associated torque capacities.
3D models are available upon request via email. The document emphasizes that all units of measurement, unless specified, are in millimeters. Drawings and images cannot be reproduced without citing the source.
This document provides technical specifications and data for various spur gears, suitable for food contact applications, compliant with EU/FDA standards. It includes details on different modules, materials, and production methods.
The document lists spur gears with modules ranging from 1 to 4. Each gear is specified by its code, module (M), number of teeth (Z), external diameter (De), pitch diameter (Dp), mean diameter (Dm), bore diameter (D1), addendum diameter (Da), and torque (Nm). The units of measurement are in millimeters unless specified otherwise.
The gears are made from a polyamide-based technopolymer reinforced with glass fiber. The material is suitable for food contact and is available in grey and blue colors.
The document highlights that reducing the tooth width while maintaining the same module results in lighter gears. The maximum applicable torque is derived from a proprietary methodology combining theoretical calculations and experimental fatigue tests. For static applications or low RPM (<100), the torque capacity may increase by up to 50%.
The gears are produced through injection molding with a rough bore. Additional machining details are available in the appendix.
For applications with specific requirements, such as low-speed or static loads, the document suggests that the torque capacity can be higher than the standard values provided.
This document provides technical specifications and details for a range of spur gears manufactured by Stagnoli s.r.l. The gears are categorized by module sizes and are suitable for various applications, including those in contact with food, adhering to EU/FDA standards.
The document lists gears with different module sizes: 0.5, 0.7, 1, 1.25, 1.5, 3, and 4. Each gear is specified by its code, module (M), number of teeth (Z), width (B), and various diameters (De, Dp, Dm, D1, Da). Torque values and stock availability are also provided.
The gears are made from POM-C (acetal resin), known for its low warpage, low moisture uptake, good friction and wear properties, and suitability for high RPM and food contact. The material is resistant to many chemicals and is physiologically inert.
The gears are produced through injection molding with bore machined to tolerance H10. Dimensional tolerances follow UNI-ISO standards, with specific tolerances for thermoplastics and machined parts detailed in the document.
3D models of the gears are available upon request via email. The document emphasizes that all drawings and images are proprietary and cannot be reproduced without permission.
This document provides technical specifications and details for various spur gears manufactured by Stagnoli s.r.l. It includes information on materials, dimensions, tolerances, and production processes.
- Modules: The document lists gears with different modules (0.5, 2, 3) and their respective specifications such as number of teeth (Z), width (B), and various diameters (De, Dp, Dm, D1, Da).
- Materials: Gears are made from POM-C and Polyketone, with Polyketone offering superior chemical resistance, impact strength, and dimensional stability.
- Technical Data: Polyketone gears have high impact strength, low moisture uptake, and excellent wear resistance, making them suitable for high-temperature environments.
- Production: Gears are produced through injection molding with bore machined to tolerance H10.
- Tolerances: General tolerances for thermoplastics are specified according to DIN16901, with specific references to UNI-ISO standards for dimensional and shape tolerances.
- Dimensional Tolerances: Specified according to UNI-ISO 2768 standards, with detailed deviations for different size ranges.
- Machined Parts: Tolerances for machined parts are outlined, including angular deviations permitted for angular dimensions.
- Material Selection: For applications requiring high chemical resistance and impact strength, Polyketone is recommended over POM-C.
- Usage: Gears are suitable for applications involving sliding or rotating components, particularly against other polymers, due to their low friction and noise reduction properties.
This document provides technical specifications and details for spur gears manufactured by Stagnoli s.r.l. The gears are made from polyketone and are available in various modules and sizes. The document includes dimensional tolerances, material specifications, and processing steps.
- Material: Polyketone
- Pressure Angle: 20°
- Available Modules: 0.5, 0.7, 1, 1.25, 1.5, 3
- Dimensional Tolerances: Specified according to UNI-ISO standards and DIN16901 for thermoplastics.
- General tolerances for thermoplastics are provided, with specific references to groups for different materials and dimensions.
- Tolerances for machined parts and carpentry works are detailed, including angular deviations.
- Pre-phase and post-phase item codes are listed for processing steps.
- Each gear is identified by a unique item code, module, number of teeth, and other dimensional parameters such as pitch diameter and tip diameter.
- Torque values and stock availability are also provided for each gear.
- 3D models are available upon request via email.
- Reproduction of drawings and images is prohibited without permission.
This document is a technical drawing and specification sheet for bevel gears and sprockets produced by Stagnoli T.G. s.r.l. It includes proprietary information and reproduction is prohibited without permission.
The gears are made from Polyketone, a material known for its exceptional chemical resistance, low moisture uptake, and high impact strength. It offers excellent dimensional stability and wear resistance, making it suitable for high-temperature environments.
The gears are produced through injection molding with machined bore tolerance H10. The sprockets are made from a polyamide-based technopolymer reinforced with glass fiber, using co-injection molding.
The document specifies general tolerances for thermoplastics according to DIN16901 and for machined parts according to UNI-ISO standards. Tolerances vary based on dimensions and are detailed for both thermoplastics and carpentry works.
The document lists various gear and sprocket models with detailed dimensions and specifications, including ratios, material properties, and stock availability. It includes tables with codes, dimensions, and other relevant data for each product.
3D models are available upon request via email. The document emphasizes the importance of citing the source when reproducing any drawings or images.
The document outlines the specifications for racks and gears made from polyamide-based technopolymer reinforced with glass fiber, available in grey color. The steel used is Fe360. The racks are designed with a pressure angle of 20° according to DIN 782 standards. Special racks with aluminum profiles are also mentioned.
The primary materials used include polyamide-based technopolymer and aluminum for special racks. The technopolymer is reinforced with glass fiber for enhanced strength.
The production involves co-injection molding for standard racks and injection molding for special racks. The document also details the workflow from customer demand analysis to production, involving design, sampling, and mold tooling.
- Lubrication: Technopolymer gears can operate dry, but lubrication is recommended to reduce friction and wear. Molykote G-4500 is suggested.
- Pairing: Technopolymer gears can pair with other technopolymer or metal gears, with metal providing better thermal conductivity.
- Operating Distance: A backlash is necessary to prevent increased friction and temperature, which can reduce gear life. Recommended tolerances are provided.
- Injection Molding vs. Machined Gears: Injection molded gears have a 15% higher mechanical resistance compared to machined gears.
The materials used comply with various regulations for food contact, including European and FDA standards. Specific migration limits are established for substances released into food.
Maximum torque data is derived from theoretical calculations based on Lewis's law and experimental data from R&D tests. The document emphasizes the importance of considering specific application conditions due to numerous variables affecting gear performance.
The document discusses the tangent force (Ft) on the primitive function of gears, noting that the force component causing compression stress on the tooth is neglected. It references the VDI 2736 guideline for designing techno polymer gears and mentions experimental data from Stagnoli's R&D studies to determine fatigue bending stress at the tooth base.
Gears are described as mechanisms for transmitting movement and torque, typically consisting of two or more toothed wheels. The document explains the terms 'pinion' and 'gear' for smaller and larger wheels, respectively, and details the tooth profile, including addendum and dedendum, which together form the tooth height.
Key measurements include circular pitch, center distance, and chordal distance (Wildhaber), which are essential for ensuring correct gear meshing. The document provides formulas for these measurements and emphasizes the need for gears to have the same module for proper engagement.
The document outlines sales conditions, including order terms, pricing, delivery, and warranty policies. Orders are binding, and prices are subject to change based on raw material costs. Delivery terms are not binding, and customers are responsible for shipping costs. Returns are only accepted with prior agreement, and Stagnoli offers to repair or replace faulty items under warranty.
Ownership of goods remains with Stagnoli until full payment is received, and any disputes will be handled by the Brescia courthouse.
Catalog excerpts
CATALOGUE OF TECHNOPOLYMER MECHANIC TRANSMISSION CATALOGO ORGANI DI TRASMISSIONE STANDARD STAMPATI IN TECNOPOLIMERO CATALOGUE OF STANDARD MOULDED TECHNOPOLYMER MECHANIC TRANSMISSION
Open the catalog to page 1
STAG NO LI MOULDED TECHNOPOLYMER MECHANIC TRANSMISSION
Open the catalog to page 2
8 - Materiali e Campi d'Impiego 13 - Ingranaggi cilindrici in PA6+30% FV 29 - Ingranaggi cilindrici in POM-C 33 - Ingranaggi cilindrici in Polichetone 37 - Coppie coniche in PA6+30% FV 41 - Coppie coniche in POM-C 43 - Coppie coniche in Polyketone 45 - Pignoni tendicatena 46 - Pignoni 49 - Pulegge 70 - Giunti 71 - Manicotti per giunti 72 - Riduttori epicicloidali 73 - Cremagliere 80 - Appendice 86 - Vademecum ingranaggi 90 - Condizioni di vendita 13 - Spur gears in PA6+30% FV 29 - Spur gears in POM-C 33 - Spur gears in Polyketone 37 - Bevel gear pairs in PA6+30% FV 41 - Bevel gear pairs in POM-C...
Open the catalog to page 3
NON CI SONO SEGRETI PER IL SUCCESSO. È IL RISULTATO DEL DURO LAVORO THERE ARE NO SECRETS TO SUCCESS. IT IS THE RESULT OF HARD WORK 4 *Proprietà dei modelli riservata ai termini di legge. Disegni e immagini non riproducibili se non citando la fonte. Property of models reserved for statutory terms. Drawings and images can not be reproduced unless quoting the source.
Open the catalog to page 4
Chi siamo. Cosa produciamo. Operanti nel settore dal 1981, siamo oggi in grado di produrre una vasta gamma di ingranaggi in tecnopolimero senza limite alcuno. Costanza, tenacia e continua ricerca hanno contribuito a fare di noi un preciso e sicuro riferimento per numerosi clienti italiani e stranieri. I punti di forza dei nostri organi di trasmissione in tecnopolimero sono molti, partendo dalla possibilità di customizzazione dei prodotti standard, fino ad arrivare allo sviluppo di nuovi organi, ingranaggi cilindrici, conici, pulegge e molto altro, tramite lo studio e la progettazione interna...
Open the catalog to page 5
About us. What we produce. The standard material chosen by Stagnoli T.G.® for its products is polyamide-based technopolymer, colour: metallized grey. Its technical and mechanical characteristics are hardness, great resistance to wear and tear, torsion and chemical substances, and unalterable dimensions.Stagnoli T.G.® ’s high qualified technical staff can follow a product from the drawing to its complete carrying out using state-of-the-art technology. The quality control plan, which is applied to each working phase, allows to meet all your specific needs thanks to Stagnoli T.G.® ’s new testing...
Open the catalog to page 6
5 motivi per scegliere gli organi di trasmissione in tecnopolimero Stagnoli®. Five reasons to switch to Stagnoli® technopolymer transmission gear. WWW.STAGNOLIGEARS.COM *Proprietà dei modelli riservata ai termini di legge. Disegni e immagini non riproducibili se non citando la fonte. Property of models reserved for statutory terms. Drawings and images can not be reproduced unless quoting the source.
Open the catalog to page 7
Campi d’impiego Field of use Gli ingranaggi stampati STAGNOLI T.G.® sono usati in: - Industria serigrafica e tipografica - Macchine per la lavorazione del vetro e della ceramica - Macchine per l’imballaggio-trasporto-confezionamento - Industria alimentare (pastifici, caseifici, macelli) - Aperture automatiche - Macchine per pulizia industriale ed elettrodomestici - Cine-foto-ottica - Tecniche elettroniche - Fotocopiatrici - Macchine per l’agricoltura - Industria chimica e farmaceutica - Macchine per ufficio e obliteratrici - Automazioni in genere - robot - Macchine in genere - Attrezzature da...
Open the catalog to page 8
Progettiamo e stampiamo ingranaggi speciali su richiesta We design and produce special molded gears on request - Ingranaggi elicoidali - Ingranaggi conici ’gleason’ - Riduttori epicicloidali - Ingranaggi frontali ’face’ - Ingranaggi doppi cilindrici, elicoidali cilindrici, elicoidali conici - Ingranaggi con inserti in alluminio, bronzo acciaio e cuscinetti - Ingranaggi interni -Pulegge -Pignoni per catene -Cremagliere -Giunti -Articoli tecnici in genere (cuscinetti, supporti, staffe etc etc) Tutti gli articoli possono essere prodotti in materiali speciali. - Helical gears - ’Gleason’ bevel gears...
Open the catalog to page 9
Proprietà tecniche Technical properties I valori sotto riportati si riferiscono a prove di trazione secondo le norme ISO 527-1/-2 e ASTM 638 per i tecnopolimeri, e EN ISO 100021-2001 per l’acciaio C40. The below mentioned values refer to tensile testing with reference to the regulations ISO 527-1/-2 and ASTM 638 for technopolymer, and EN ISO 10012-1-2001 for C40 steel. RESISTENZA A TRAZIONE / TENSILE STRENGTH AT BREAK TEMPERATURA D’IMPIEGO / TEMPERATURE OF USE T. max per uso permanente T. max for long time T. max per uso breve T. max for short time COEFFICIENTE D’ATTRITO (SECCO SU ACCIAIO) /...
Open the catalog to page 10
Proprietà chimiche. Chemical properties = Concentrazione / Concentration = Buona resistenza; limitate variazioni dimensionali o di peso; nessuna alterazione / Good resistance-constant; little or no weight or dimensional change; no alterations = Resistenza media: variazioni dimensionali e di peso dopo un determinato intervallo di tempo; possibile variazione di colore, riduzione delle proprietà meccaniche / Medium resistance: some weight and dimensional change after a certain period; possible colour modification, reduction of mechanical properties = Light attack. L’utilizzo è possibile in determinate...
Open the catalog to page 11
Serie normale in PA6+30% FV Normal series in PA6+30% GF INGRANAGGI CILINDRICI / SPUR GEARS Angolo di pressione 20° / Pressure angle 20° MATERIALE Tecnopolimero a base poliammidica rinforzato con fibra vetro, colore: grigio. Coppia / Torque ESECUZIONE Stampaggio ad iniezione, foro grezzo (per dettagli sulla lavorazione vedere Appendice pag 64). DATI TECNICI La coppia massima trasmissibile riportata in tabella è stata ottenuta tramite una metodologia (di proprietà Stagnoli) che nasce dallla congiunzione di calcoli teorici e dati sperimentali ottenuti tramite test a fatica sugli ingranaggi. Va considerato...
Open the catalog to page 13