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Precision couplings
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Precision couplings
Product catalog summary
Introduction to R+W Couplings
R+W Antriebselemente GmbH specializes in precision torque transmission solutions, offering a variety of coupling systems for precision drive technology. Their product range includes bellows couplings, elastomer insert couplings, ball-detent safety couplings, line shaft couplings, and high torque industrial couplings. The company focuses on technology leadership and customer collaboration from consultation to manufacturing.
R+W Antriebselemente GmbH specializes in precision torque transmission solutions, offering a variety of coupling systems for precision drive technology. Their product range includes bellows couplings, elastomer insert couplings, ball-detent safety couplings, line shaft couplings, and high torque industrial couplings. The company focuses on technology leadership and customer collaboration from consultation to manufacturing.
Augmented Reality App
The R+W app enhances user experience by providing augmented reality (AR) content for their product catalog, accessible on iOS and Android devices. Users can view 3D models, animations, and videos by scanning images with the AR icon.
The R+W app enhances user experience by providing augmented reality (AR) content for their product catalog, accessible on iOS and Android devices. Users can view 3D models, animations, and videos by scanning images with the AR icon.
Product Portfolio
- Backlash Free Servo Disc Pack Coupling: Ideal for precise angular motion and torque transmission in applications like linear actuators and medical devices, featuring zero backlash and torsional stiffness.
- Torsionally Stiff Bellows Couplings: Designed for dynamic drive applications such as machine tools and printing, offering high misalignment compensation and easy installation.
- Backlash Free Torque Limiters: Provide overload protection in machine tools and packaging machinery, with precise torque overload protection and fast disengagement.
- Line Shafts: Used for spanning large distances in material handling and theatre automation, self-supporting up to 6 meters without intermediate support bearings.
- ATEX Certified Couplings: Designed for hazardous environments like oil and gas extraction, compliant with directive 94/9/EG.
Sizing and Selection
Guidelines are provided for selecting the appropriate coupling size based on torque, torsional deflection, acceleration torque, and resonant frequency. It includes formulas and factors such as load factor, temperature factor, and start factor to ensure optimal performance.
Guidelines are provided for selecting the appropriate coupling size based on torque, torsional deflection, acceleration torque, and resonant frequency. It includes formulas and factors such as load factor, temperature factor, and start factor to ensure optimal performance.
Conclusion
R+W Couplings are engineered for precision and reliability, offering a wide range of products to meet diverse industrial needs. The company is committed to innovation, customer satisfaction, and maintaining a leadership position in the global market.
R+W Couplings are engineered for precision and reliability, offering a wide range of products to meet diverse industrial needs. The company is committed to innovation, customer satisfaction, and maintaining a leadership position in the global market.
Technical Document Summary
1. Specifications and Parameters
This section outlines various technical parameters and symbols used in the document, such as drive power (PAN), angular acceleration (α), and torsional stiffness (CT). It also includes formulas for calculating angular velocity (ω), drive speed (n), and other mechanical properties.
This section outlines various technical parameters and symbols used in the document, such as drive power (PAN), angular acceleration (α), and torsional stiffness (CT). It also includes formulas for calculating angular velocity (ω), drive speed (n), and other mechanical properties.
2. Sizing and Selection
The document provides guidelines for selecting torque limiters and couplings based on load factors and mechanical properties. It includes formulas for calculating torque requirements under different conditions, such as start-up with no load and start-up under load.
The document provides guidelines for selecting torque limiters and couplings based on load factors and mechanical properties. It includes formulas for calculating torque requirements under different conditions, such as start-up with no load and start-up under load.
3. Torsional Stiffness and Deflection
Details on calculating torsional stiffness and deflection are provided, with emphasis on ensuring the torsional natural frequency of the coupling is significantly different from that of the equipment. The document includes specific calculations for torsional deflection and stiffness.
Details on calculating torsional stiffness and deflection are provided, with emphasis on ensuring the torsional natural frequency of the coupling is significantly different from that of the equipment. The document includes specific calculations for torsional deflection and stiffness.
4. Load Holding Function
This section describes the load holding capabilities of various coupling models, specifying the torque settings they can secure after disengagement.
This section describes the load holding capabilities of various coupling models, specifying the torque settings they can secure after disengagement.
5. Installation and Handling
Guidelines for the installation and handling of couplings are provided, emphasizing the importance of precise alignment to extend service life. It also covers fit clearance and the importance of following installation instructions.
Guidelines for the installation and handling of couplings are provided, emphasizing the importance of precise alignment to extend service life. It also covers fit clearance and the importance of following installation instructions.
6. Product Models and Features
The document lists various coupling models, such as ZA, EZ, and BK, detailing their features, such as torsional stiffness, maximum misalignment, and specific applications. It includes tables with technical specifications for each model.
The document lists various coupling models, such as ZA, EZ, and BK, detailing their features, such as torsional stiffness, maximum misalignment, and specific applications. It includes tables with technical specifications for each model.
7. Temperature and Material Considerations
Information on temperature factors affecting coupling performance is provided, along with options for special materials and custom solutions for specific applications.
Information on temperature factors affecting coupling performance is provided, along with options for special materials and custom solutions for specific applications.
8. Additional Features
Additional features of couplings, such as backlash-free torque transmission and high torsional stiffness, are highlighted. The document also mentions optional features like ATEX certification for use in hazardous zones.
Additional features of couplings, such as backlash-free torque transmission and high torsional stiffness, are highlighted. The document also mentions optional features like ATEX certification for use in hazardous zones.
Overview: The document provides detailed specifications and features of various models of couplings, focusing on their design, material, and performance characteristics. It includes technical data for models BK, BK1, BK2, BKH, BKL, BKC, BKM, and BKS, highlighting their rated torque, dimensions, material composition, and additional features.
Specifications: Each model is described with specific parameters such as rated torque (ranging from 2 Nm to 10,000 Nm), overall length, outside diameter, fit length, and inside diameter. The document also specifies the fastening screw type, tightening torque, and moment of inertia for each model.
Design and Material: The couplings are designed with high-grade stainless steel bellows and hubs made from either aluminum or steel, depending on the model. The design includes features like clamping hubs, split clamping hubs, and optional self-opening clamp systems for ease of installation and removal.
Performance Characteristics: The document outlines the torsional stiffness, axial and lateral spring stiffness, and maximum permissible misalignments (axial, lateral, and angular) for each model. It also mentions the capability to handle brief overloads up to 1.5 times the rated torque.
Additional Features: Some models offer custom flange patterns, bolt tensioning systems, and optional features like anodized hubs or finely balanced components for high-speed applications. The document provides ordering examples to guide the selection of specific models and custom features.
Applications: The couplings are suitable for various industrial applications, including those requiring high torque density, compact design, and high torsional stiffness. They are designed for easy mounting and alignment on shafts, making them ideal for use in torque transducers and other precision applications.
Overview: This document provides detailed specifications and features of various coupling models designed for different applications, focusing on high temperatures, aggressive media, and high torque requirements. The document includes technical specifications, material details, design features, and ordering examples for each model.
Specifications:
- Materials: Bellows are made from high-grade stainless steel, while hubs vary between stainless steel, steel, and aluminum depending on the model. Screws are Grade 12.9 Geomet coated.
- Design: Most models feature two clamping hubs mounted to flexible bellows, allowing for brief overloads up to 1.5x the rated torque. Operating temperatures range from -40˚ to +300˚C.
- Performance: Models are designed for high clamping pressure, high torque, and compact design. They are capable of handling high operating speeds and provide smooth running due to symmetrical design.
Model-Specific Details:
- BK3: Features a conical clamping system with rated torque ranging from 15 to 10,000 Nm. It offers high clamping pressure and is suitable for high torque applications.
- SP3: Known for very high balancing quality and high operating speeds, with rated torque from 60 to 10,000 Nm.
- BK4: Designed for tapered shafts, easy to mount and dismount, with rated torque from 15 to 150 Nm.
- BK5: Features a blind mate with clamping hub, offering easy installation and removal, with rated torque from 15 to 1,500 Nm.
- BK6: Similar to BK5 but includes a conical clamping ring, suitable for axial mounting and high balance due to self-centering design.
- BK7: Designed for hollow shaft mounting with an expanding shaft, rated torque from 15 to 300 Nm.
Ordering Information: Each model includes an ordering example with specific parameters such as model, size, overall length, bore diameters, and any special designations. Custom features can be specified with an 'XX' at the end of the part number.
Key Features:
- High-grade materials ensure durability and performance under extreme conditions.
- Designs accommodate brief overloads and provide high torque transmission.
- Models are tailored for specific applications, including high-speed operations and precise balancing.
Overview: The document provides detailed specifications and features of BK8 bellows couplings with ISO flange connections, suitable for torque ranges between 50 to 2,600 Nm. It includes information on materials, design, and ordering examples for various models.
Specifications:
- ISO flange output gearboxes compatibility.
- Compact design allowing continuous hollow through axis with some right-angle gearbox designs.
- Materials used include high-grade stainless steel for bellows, aluminum for hubs up to size 300, and steel for larger sizes and adapter flanges.
Design and Features:
- One clamping hub with an integral flange and adapter flange on the other end.
- Maximum transmittable torque depends on bore diameter.
- Available in sizes 15, 60, 150, 300, and 1500 with varying flange centering diameters, bolt circle/thread specifications, and maximum torque capacities.
Properties:
- Model BK8 offers different sizes with specific dimensions for flange centering, bolt circle, maximum torque, and other parameters.
- Includes details on fastening threads, tightening torque, and weight for each size.
Ordering Information:
- Example provided for ordering with special designations and custom features.
- Maximum torque is transmittable only for brief periods and requires maximum bore for clamping strength.
Additional Models:
- MK1, MK2, MKH, MK3, and MK4 models are described with their respective features, materials, and design specifications.
- Each model is suited for specific applications, such as high-speed, dynamic applications, or space-restricted installations.
ATEX Certification:
- Optional ATEX certification for use in hazardous zones, compliant with directive 94/9/EG.
Overview: This document provides detailed specifications and features of various coupling models, including MK5, MK6, MKS, BKL, FK1, and SCL series. These couplings are designed for different applications, offering features like backlash-free assembly, high torsional stiffness, and easy installation.
Specifications:
- MK5 and MK6 Models: These models feature clamping hubs and are available in sizes ranging from 5 to 100. They offer rated torque from 0.5 to 10 Nm, with materials including high-grade stainless steel bellows and aluminum hubs. The MK6 model includes an expanding shaft system.
- MKS Model: Designed for high-speed applications, this model features a self-centering conical clamping ring design, suitable for speeds up to 120,000 rpm. It offers rated torque from 4.5 to 15 Nm.
- BKL Model: Known as ECOFLEX®, this model is economically priced and suitable for encoders and small servo drives. It offers a rated torque of 3 Nm and operates within a temperature range of -40 to +200°C.
- FK1 Model: This microflex coupling features radial set screws and is designed for very small dimensions, offering a rated torque of 1 Ncm.
- SCL Series: These servo disc pack couplings are available with clamping hubs or conical clamping systems, offering high torsional stiffness and low inertia. They are suitable for applications requiring high precision and are available in sizes from 25 to 100 Nm.
Design and Material:
- Most models feature high-grade stainless steel bellows and aluminum hubs, with some models incorporating high-strength plastic or steel components.
- The design often includes clamping hubs with tapered male projections or expanding shaft systems for secure connections.
Features and Benefits:
- Backlash-free assembly and high torsional stiffness are common features across models, ensuring precise and reliable performance.
- Easy installation and removal are emphasized, with some models offering solutions for mismatched bore/shaft diameters.
- High-speed capabilities and self-centering designs are highlighted in models like the MKS.
Ordering Information: Each model includes specific ordering examples, detailing how to specify custom features or special requirements, such as bore tolerances or balancing for high-speed applications.
Overview: This document provides detailed specifications and features of various coupling models, including EKH, EK6, SP6, EK7, EKZ, and EK4. Each model is designed for specific applications and offers unique features, materials, and design properties.
Specifications:
- EKH Model: Available in sizes 2500, 4500, and 9500, with rated torque ranging from 1950 to 12500 Nm. Features include lateral mounting, easy installation, and pre-alignment of shafts. Materials include high-strength aluminum and steel for hubs, and wear-resistant TPU for elastomers.
- EK6 Model: Sizes range from 10 to 800, with rated torque from 12.5 to 1100 Nm. It features high clamping pressure and self-centering on shafts. The design includes conical clamping rings and curved jaws.
- SP6 Model: Designed for high-speed applications with sizes from 60 to 450, offering rated torque from 60 to 660 Nm. It features very high precision and concentricity, with hubs made from high-strength aluminum or optional steel.
- EK7 Model: Sizes range from 5 to 800, with rated torque from 9 to 1100 Nm. It is suitable for hollow shaft mounting and offers a solution for mismatched bore/shaft diameters.
- EKZ Model: Intermediate spacer model with sizes from 2 to 800, offering rated torque from 2 to 1100 Nm. It allows for high lateral misalignment and can be combined with any two hub designs.
- EK4 Model: Designed for conical shaft ends, available in sizes 20, 60, and 150, with rated torque from 17 to 200 Nm.
Design and Material: All models feature concentrically machined hubs with curved jaws. The elastomer inserts are made from thermally stable TPU, providing wear resistance. Hubs are typically made from high-strength aluminum or steel, depending on the size and application.
Ordering Information: Each model includes specific ordering examples, detailing the model, size, elastomer insert type, and bore specifications. Custom features can be specified with an 'XX' at the end of the part number.
Additional Information: For detailed information on shaft misalignment, torsional stiffness, and elastomer inserts, refer to pages 72 and 73 of the document.
Specifications and Features
The document outlines the specifications for various coupling models, focusing on their design, materials, and functional properties. Key features include maximum transmittable torque dependent on bore diameter, easy assembly, and electrical isolation. The materials used include high-strength aluminum for clamping hubs and steel for conical hubs, with wear-resistant TPU elastomer inserts.
The document outlines the specifications for various coupling models, focusing on their design, materials, and functional properties. Key features include maximum transmittable torque dependent on bore diameter, easy assembly, and electrical isolation. The materials used include high-strength aluminum for clamping hubs and steel for conical hubs, with wear-resistant TPU elastomer inserts.
Design and Material
The couplings are designed with two concentrically machined hubs with curved jaws, one with a clamping hub and screw per ISO 4762, and the other with a tapered bore and keyway. The elastomer inserts are available in different types (A, B, C) with varying Shore hardness and color, providing options for high damping and torsional stiffness.
The couplings are designed with two concentrically machined hubs with curved jaws, one with a clamping hub and screw per ISO 4762, and the other with a tapered bore and keyway. The elastomer inserts are available in different types (A, B, C) with varying Shore hardness and color, providing options for high damping and torsional stiffness.
Ordering Information
Examples of ordering codes are provided, such as EK4 20 A 24 XX, where custom features can be specified with an 'XX' at the end of the part number.
Examples of ordering codes are provided, such as EK4 20 A 24 XX, where custom features can be specified with an 'XX' at the end of the part number.
Performance and Properties
The document details the performance metrics such as rated and maximum torque, static and dynamic torsional stiffness, and speed limits for different sizes and elastomer types. It also highlights the importance of fit clearance and the availability of special solutions for custom applications.
The document details the performance metrics such as rated and maximum torque, static and dynamic torsional stiffness, and speed limits for different sizes and elastomer types. It also highlights the importance of fit clearance and the availability of special solutions for custom applications.
Safety and Maintenance
R+W safety couplings are described as wear and maintenance-free under normal conditions. They are designed to protect drive components from overloads using a spring-loaded ball-detent system. The document emphasizes the importance of adhering to specified torque adjustment ranges to ensure optimal performance and longevity.
R+W safety couplings are described as wear and maintenance-free under normal conditions. They are designed to protect drive components from overloads using a spring-loaded ball-detent system. The document emphasizes the importance of adhering to specified torque adjustment ranges to ensure optimal performance and longevity.
Additional Features
The document also covers various models of torque limiters and their features, such as backlash-free operation, adjustable torque settings, and compensation for shaft misalignment. It includes information on ATEX certification for use in hazardous zones and the availability of production monitoring and testing by TÜV SÜD.
The document also covers various models of torque limiters and their features, such as backlash-free operation, adjustable torque settings, and compensation for shaft misalignment. It includes information on ATEX certification for use in hazardous zones and the availability of production monitoring and testing by TÜV SÜD.
Overview
This document provides detailed technical specifications and guidelines for safety couplings with optional sealing. It covers various models, their characteristics, and the benefits of using sealed couplings in different environments.
This document provides detailed technical specifications and guidelines for safety couplings with optional sealing. It covers various models, their characteristics, and the benefits of using sealed couplings in different environments.
Sealing Benefits
Sealing offers protection from harmful contaminants and prevents grease leakage. It is recommended for harsh environments or applications requiring clean room or sanitary conditions.
Sealing offers protection from harmful contaminants and prevents grease leakage. It is recommended for harsh environments or applications requiring clean room or sanitary conditions.
Behavior and Characteristics
The document discusses torque limiters and disengagement mechanisms, comparing conventional spring systems with R+W spring systems. It highlights the importance of proper torque settings to prevent malfunctions.
The document discusses torque limiters and disengagement mechanisms, comparing conventional spring systems with R+W spring systems. It highlights the importance of proper torque settings to prevent malfunctions.
Spring Characteristics
Special design features include spring force and travel adjustments, with detailed specifications for minimum and maximum torque settings.
Special design features include spring force and travel adjustments, with detailed specifications for minimum and maximum torque settings.
Radial Loads and Safety Couplings
Safety couplings are equipped with integral bearings to support drive attachments. The document provides maximum radial load specifications and guidelines for additional bearing support when necessary.
Safety couplings are equipped with integral bearings to support drive attachments. The document provides maximum radial load specifications and guidelines for additional bearing support when necessary.
Design and Material Specifications
The document outlines the design and material specifications for various coupling sizes, including miniature and standard designs. It specifies materials like hardened steel and aluminum for different components.
The document outlines the design and material specifications for various coupling sizes, including miniature and standard designs. It specifies materials like hardened steel and aluminum for different components.
Function Systems
Available function systems include single position automatic re-engagement, multi-position automatic re-engagement, load holding/blocking, and full disengagement/manual re-engagement.
Available function systems include single position automatic re-engagement, multi-position automatic re-engagement, load holding/blocking, and full disengagement/manual re-engagement.
Technical Specifications
Detailed tables provide specifications for different models, including adjustment ranges, overall lengths, actuation ring diameters, clamping fit lengths, and more. The document also includes ordering examples and customization options.
Detailed tables provide specifications for different models, including adjustment ranges, overall lengths, actuation ring diameters, clamping fit lengths, and more. The document also includes ordering examples and customization options.
Specifications:
The document provides detailed specifications for various coupling models, including clamping fit length, bore diameter, pilot diameter, bolt-hole circle diameter, thread depth, fastening threads, screw types, tightening torque, centering length, and distances related to actuation and clamping components. It also includes information on the maximum transmittable torque in relation to bore diameter and the design features of the couplings.
The document provides detailed specifications for various coupling models, including clamping fit length, bore diameter, pilot diameter, bolt-hole circle diameter, thread depth, fastening threads, screw types, tightening torque, centering length, and distances related to actuation and clamping components. It also includes information on the maximum transmittable torque in relation to bore diameter and the design features of the couplings.
Design and Functionality:
The couplings are designed with clamping collars and screws, utilizing a spring-loaded ball-detent principle. They operate within a temperature range of -30 to +120°C. The document outlines available function systems, such as single-position and multi-position automatic re-engagement.
The couplings are designed with clamping collars and screws, utilizing a spring-loaded ball-detent principle. They operate within a temperature range of -30 to +120°C. The document outlines available function systems, such as single-position and multi-position automatic re-engagement.
Models and Sizes:
The document details several models, including SLP, SL2, SLE, and ESL, each with specific size ranges and torque capacities. It provides adjustment ranges, overall lengths, actuation distances, and other dimensional data for each model.
The document details several models, including SLP, SL2, SLE, and ESL, each with specific size ranges and torque capacities. It provides adjustment ranges, overall lengths, actuation distances, and other dimensional data for each model.
Materials and Properties:
The materials used include high-strength steel and aluminum for the clutch system and hubs, with wear-resistant elastomer inserts. The document highlights properties such as torsional stiffness, moment of inertia, and static and dynamic torsional rigidity.
The materials used include high-strength steel and aluminum for the clutch system and hubs, with wear-resistant elastomer inserts. The document highlights properties such as torsional stiffness, moment of inertia, and static and dynamic torsional rigidity.
Accessories and Additional Features:
Accessories such as proximity switches and mechanical limit switches are discussed, with technical data including voltage, output current, switch frequency, and protective systems. The document also mentions the availability of spanner wrenches for torque adjustment.
Accessories such as proximity switches and mechanical limit switches are discussed, with technical data including voltage, output current, switch frequency, and protective systems. The document also mentions the availability of spanner wrenches for torque adjustment.
Ordering Information:
Examples of ordering codes are provided, detailing how to specify models, sizes, function systems, bore diameters, disengagement torque, and any special requirements.
Examples of ordering codes are provided, detailing how to specify models, sizes, function systems, bore diameters, disengagement torque, and any special requirements.
Overview: The document provides detailed specifications and features of R+W line shafts, which are authorized under directive 94/9/EG and available with certification. These line shafts are designed for various torque ranges and are available in different configurations to suit specific applications.
Specifications:
- Backlash Free, Torsionally Stiff Line Shafts: Available in torque ranges from 10 to 4,000 Nm with clamping hubs, and from 1,500 to 4,000 Nm with conical clamping systems. Standard lengths up to 6 meters, with no intermediate support bearings required.
- Split Clamping Hub: Torque ranges from 10 to 800 Nm, with standard lengths up to 6 meters. Allows for easy lateral installation and removal.
- CFK Tube Option: Provides high torsional stiffness and low moment of inertia, suitable for high-speed applications.
Design and Material:
- Line shafts feature high-grade stainless steel bellows and intermediate tubes made of aluminum or steel, with optional CFK for certain models.
- Hubs are made of aluminum for sizes up to 60 and steel for sizes 150 and above.
- Temperature range for operation is from -30 to +100°C.
Installation and Ordering:
- Installation is designed to be straightforward, with options for lateral mounting and removal without disturbing other machine components.
- Ordering examples are provided, detailing how to specify custom features such as special bore tolerances or material finishes.
Accessories: The document also lists accessories available for line shafts, which are detailed on pages 134-137.
Specifications:
The document provides detailed specifications for various models of couplings, including the EZ2 S and EZV models. Key parameters include rated torque, maximum torque, overall length, outside diameter, fit length, and inside diameter range. The document also specifies the type of elastomer insert and the mounting screw details according to ISO 4762 standards.
The document provides detailed specifications for various models of couplings, including the EZ2 S and EZV models. Key parameters include rated torque, maximum torque, overall length, outside diameter, fit length, and inside diameter range. The document also specifies the type of elastomer insert and the mounting screw details according to ISO 4762 standards.
Installation Procedures:
Installation involves calculating the total length by adding the distance between shaft ends and twice the length O. The document provides an ordering example to guide users in specifying custom features.
Installation involves calculating the total length by adding the distance between shaft ends and twice the length O. The document provides an ordering example to guide users in specifying custom features.
Functional Description:
The document describes the functionality of the couplings, highlighting features such as telescoping for adjustable length, easy installation, and removal, and the absence of intermediate support bearings. The materials used include high-strength aluminum for hubs and thermally stable TPU for elastomer inserts.
The document describes the functionality of the couplings, highlighting features such as telescoping for adjustable length, easy installation, and removal, and the absence of intermediate support bearings. The materials used include high-strength aluminum for hubs and thermally stable TPU for elastomer inserts.
ATEX Certification:
The document outlines the ATEX certification for use in hazardous areas, detailing the equipment group, category, protection type, and temperature class. It emphasizes the importance of operating within sealed housings and monitoring input and output shafts to ensure safety.
The document outlines the ATEX certification for use in hazardous areas, detailing the equipment group, category, protection type, and temperature class. It emphasizes the importance of operating within sealed housings and monitoring input and output shafts to ensure safety.
Performance Ratings:
Performance ratings include permitted misalignments, speed, and torque ratings. For ATEX environments, torque limiters are recommended to avoid high temperatures from excess friction.
Performance ratings include permitted misalignments, speed, and torque ratings. For ATEX environments, torque limiters are recommended to avoid high temperatures from excess friction.
Ordering Information:
Examples of ordering formats are provided for different models, specifying the model, size, elastomer insert type, and bore dimensions. Special designations and custom features can be indicated with an 'XX' at the end of the part number.
Examples of ordering formats are provided for different models, specifying the model, size, elastomer insert type, and bore dimensions. Special designations and custom features can be indicated with an 'XX' at the end of the part number.
Safety and Compliance:
The document stresses compliance with European directives 2014/34/EU (ATEX) and the Machinery Directive 2006/42/EC. It includes guidelines for installation and operation, ensuring that all necessary values and specifications are adhered to for safe use in potentially explosive atmospheres.
The document stresses compliance with European directives 2014/34/EU (ATEX) and the Machinery Directive 2006/42/EC. It includes guidelines for installation and operation, ensuring that all necessary values and specifications are adhered to for safe use in potentially explosive atmospheres.
General Information: The document provides information about R+W couplings, which are not marked with a CE marking and do not receive a CE declaration of conformity, installation, or serial number, thus not covered by the Machinery Directive. Statements regarding ATEX conforming products are based on current knowledge and experience, with technical specifications subject to change.
Global Presence: R+W operates in numerous countries worldwide, including Argentina, Australia, Austria, Belgium, Brazil, Canada, China, France, Germany, India, Italy, Japan, Korea, Mexico, Russia, Saudi Arabia, South Africa, Spain, the UK, and the USA, among others.
Quality Assurance: The document emphasizes the quality of R+W products as "Made in Germany" and notes that all information is based on current knowledge and experience. It advises that drawings may differ from original couplings and that data is subject to change without notice.
Contact Information: The document provides contact details for R+W offices in Germany, the USA, China, Italy, Malaysia, and France, including addresses, phone numbers, fax numbers, and email addresses.
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Catalog excerpts
NEXT LEVEL INFORMATION DISCOVER THE FUTURE TODAY The R+W app blurs the borders between the real and virtual worlds. Thanks to Augmented Reality technology, you can experience the R+W product portfolio like never before ft+w AUGMENTED REALITY ) Every product image in our catalog shown with this icon contains additional information. With your smartphone or tablet, you unlock all of this in virtual reality. JUST A FEW STEPS TO AUGMENTED REALITY 1. Download the free R+W App from the App Store or Google Play. It is available for all devices with iOS version 7.0 or higher, as well as Android devices...
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NEXT LEVEL COMMUNICATION SOCIALIZING WITH R+W Would you like to learn more about R+W and our couplings? We are pleased to take you into the world of R+W. On our YouTube channel, you can find several videos pertaining to our product line. Are you more interested in application examples for our c ouplings? If so, please take a look at our case studies that can be found on our homepage. Here you can also subscribe to the R+W newsletter or find a link to download the R+W App. And if you simply cannot get enough of us, you can find us on Facebook, Google+, and Twitter.
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When R+W Antriebselemente GmbH was first established in 1990 in Klingenberg, Germany, there were three people on board. Meanwhile the headquarter have been relocated to Worth am Main. We now employ more than 280 people, with subsidiaries in the USA, China, Italy, Singapore, France and Slovakia, and are partnered with over 80 well established distributors in more than 50 countries throughout the world. Many developments have lead to this success, but most importantly it was brought about by our endless search for the best possible coupling solutions as well as the high esteem in which we hold...
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TO THE TOP OF THE WORLD WITH TONS OF DRIVE Our guiding principle, DRIVE, is a mutual calling that unifies our 280 employees: To manufacture top-notch, highperformance couplings and torque limiters for the global market; precise to the micrometer. With DRIVE, we present ourselves as a Dynamic, Reliable, Innovative and Versatile market and technology leader that strives for Expansion by making further development and improvement part of our everyday business. DRIVE MEANS DYNAMIC Dynamics fascinate us. For our team “dynamic” means outstanding expertise in all matters involving torque transmission...
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TORSIONALLY STIFF BELLOWS COUPLINGS from 2 - 10,000 Nm AREAS OF APPLICATION for highly dynamic motion in: ► Machine tools ► Packaging machinery ► Printing machinery ► Paper converting machinery ► Labeling machinery ► Automation equipment FEATURES ► torsionally stiff ► low moment of inertia ► zero backlash ► highly concentric ► naturally very well balanced ► precise transmission ► infinite life ► wear and maintenance free ► easy to install TORSIONALLY STIFF MINIATURE BELLOWS COUPLINGS from 0.05 - 10 Nm AREAS OF APPLICATION for precise transmission of angular motion and torque in: ► Linear actuators...
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from 0.5 - 25,000 Nm AREAS OF APPLICATION for vibration damping torque transmission in: ► Packaging machinery ► Pump drives ► Machine tools ► Lift systems ► Conveyors ► Labeling machinery FEATURES ► vibration damping ► electrically isolating ► backlash free ► calibrated preloaded insert ► concentrically machined hubs BACKLASH FREE TORQUE LIMITERS P. 89 from 0.1 - 2,800 Nm AREAS OF APPLICATION for overload protection in: ► Machine tools ► Packaging machinery ► Metal forming equipment ► Test stands ► Pump drives ► Assembly systems FEATURES ► protects from rotating inertia as well as motor torque...
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ATEX CERTIFIED COUPLINGS ELASTOMER COUPLINGS EK | TX
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SYMBOLS Tkn = Rated torque of the coupling (Nm) Tas = Peak torque of the drive system e.g. max. acceleration torque of drive (Nm) or max. braking torque of load (Nm) JL = Total load inertia (e.g. spindle + slide + workpiece + 1/2 of coupling) (kgm 2) JA = Total driving inertia (motor [including gear ratio] + 1/2 of coupling) (kgm 2) CT = Torsional stiffness of the coupling (Nm/rad) fe = Natural frequency of the two mass system (Hz) fer = Excitation frequency of the drive (Hz) 9 = Torsional deflection (degree)
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SIZING INSTALLATION ACCORDING TO TORQUE Couplings are normally sized for the highest torque to be regularly transmitted. The peak torque of the application should not exceed the rated torque of the coupling. The following calculation provides an approximation of the minimum required coupling size, and allows for the maximum rated speed and misalignment to exist in the application: The torsional natural frequency of the coupling must be significantly higher or lower than that of the equipment. For the mechanical substitution model the two mass system applies. In practice the following applies:...
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SIZING INSTALLATION COUPLING SELECTION FOR OPERATION WITHOUT SHOCK OR REVERSAL Calculation Supplemental Calculation Sample calculation: (without shock loads) Coupling conditions Drive for centrifugal pump υ = 70° C TAN = 85 Nm Sυ = 1.7 (or 70°/ Elastomer Type A) Result: Coupling model EK2/150/A (TKN = 160 Nm) is selected. ELASTOMER COUPLINGS EK | TX COUPLING SELECTION FOR OPERATION WITH SHOCK LOADS Same basic conditions as above. In addition, the maximum torque rating of the coupling (TKmax) is dictated by peak torque (TS) due to shock loads. Supplemental Calculation Supplemental Calculation...
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SYMBOLS Tkn = Rated torque of the coupling (Nm) TAS = Peak torque of the motor (Nm) JL = Moment of inertia of the load (kgm 2) JA = Moment of inertia of the drive (kgm 2) a = Angular acceleration (1/s 2) t = Acceleration / deceleration time (s) to = Angular velocity (1/s) CT = Torsional stiffness of the coupling (Nm/rad) JMasch = Total load inertia (e.g. spindle + slide + workpiece + 1/2 of coupling) (kgm2) JMot = Total driving inertia (motor [including gear ratio] + 1/2 of coupling) (kgm2) fe = Natural frequency of the two mass system (Hz) 9 = Torsional deflection (degree) ACCORDING TO DISENGAGEMENT...
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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.
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