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N-Eupex-torsionally-flexible-couplings-available-from-jbj-Techniques-Limited

N-Eupex-torsionally-flexible-couplings-available-from-jbj-Techniques-Limited
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N-Eupex-torsionally-flexible-couplings-available-from-jbj-Techniques-Limited

Product catalog summary
Introduction
The document provides comprehensive information on Flender Mechanical Power Transmission Couplings, distributed by jbj Techniques. It details various coupling types, their specifications, and applications.
Flexible Couplings
Flender offers flexible couplings such as N-EUPEX, RUPEX, and N-BIPEX, each catering to different torque needs. N-EUPEX ranges from 19 Nm to 62,000 Nm, RUPEX from 200 Nm to 1,300,000 Nm, and N-BIPEX from 12 Nm to 4,650 Nm.
Highly Flexible Couplings
ELPEX, ELPEX-B, and ELPEX-S couplings provide damping and low torsional stiffness, suitable for machines with variable torque. ELPEX ranges from 1,600 Nm to 90,000 Nm, ELPEX-B from 24 Nm to 14,500 Nm, and ELPEX-S from 330 Nm to 63,000 Nm.
Torsionally Rigid Couplings
ZAPEX and ARPEX couplings are designed for high torque transmission. ZAPEX ranges from 1,300 Nm to 7,200,000 Nm, while ARPEX ranges from 1,000 Nm to 588,500 Nm. N-ARPEX and ARPEX disc couplings range from 92 Nm to 2,000,000 Nm.
Backlash-Free Couplings
BIPEX-S and SIPEX couplings offer vibration damping and high torsional stiffness, with a torque range of 0.1 Nm to 5,000 Nm.
Hydrodynamic Fluid Couplings
FLUDEX couplings operate on the Fottinger principle, providing overload protection and aiding motor start-up.
Railway Couplings
Flender Railway Couplings ensure reliability and safety in rail vehicles, compatible with Flender gear units and tested for high forces and speeds.
Technical Information
The document includes specifications for N-EUPEX series, fitting recommendations, and guidance on selecting coupling sizes and environmental conditions.
N-EUPEX Couplings
N-EUPEX and N-EUPEX DS couplings compensate for shaft misalignment and comply with the ATEX Directive. They are available in 23 sizes with a torque range of 19 Nm to 62,000 Nm, suitable for temperatures between -30 °C and +80 °C.
Design and Functionality
N-EUPEX couplings are torsionally flexible and fail-safe, while N-EUPEX DS couplings are non-fail-safe. They consist of two hub parts connected by elastomer elements.
Applications
Suitable for drives with uniform to average dynamic loads, such as pumps and ventilators. They are also used with FLUDEX fluid couplings or ARPEX AKR safety couplings.
Materials and Variants
Made from grey cast iron and spheroidal graphite cast iron, with various pin coupling types available.
Maintenance and Wear Indicators
N-EUPEX DS couplings are maintenance-free, with an optional wear indicator for elastomer elements.
Partnership and Distribution
Flender partners with jbj Techniques Limited for UK distribution, leveraging jbj's expertise in various applications.
Specifications and Procedures
Details on Type A, B, and H couplings, including dimensions, torque ratings, and ordering information. Assembly instructions specify a gap dimension tolerance of +1 mm.
Standards and Recommendations
Adheres to DIN 6885-1 standards for keyway specifications, recommending smaller hub diameters where bore diameters overlap.
N-EUPEX DK Couplings
Features a double-cardanic design for greater shaft angle compensation, with enhanced performance and bore capacity.
Applications
Suitable for pump applications and certified for explosive areas.
Conclusion
The N-EUPEX DK series offers improved performance and flexibility, making it a reliable choice for demanding applications.
Company Overview
jbj Techniques Limited specializes in mechanical power transmission and fluid power sectors, offering a wide range of products and services.
Product Specifications
Provides couplings for Nema and imperial frame motors, with materials like aluminum and steel, adhering to various standards.
Safety and Compliance
Products meet safety standards for hazardous areas, including ATEX compliance.
Service and Support
Offers comprehensive services from specification to after-sales support, with a UK-wide team of technical sales engineers.
Quality Assurance
ISO certified, jbj Techniques maintains high-quality standards and a loyal client base.
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Catalog excerpts

N-Eupex-torsionally-flexible-couplings-available-from-jbj-Techniques-Limited-1

N-EUPEX CLAW COUPLINGS

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N-Eupex-torsionally-flexible-couplings-available-from-jbj-Techniques-Limited-2

Flender Mechanical Power Transmission Couplings available from jbj Techniques N-EUPEX®, RUPEX® and N-BIPEX® Flexible Couplings Flexible Flender couplings have a wide range of possible applications. A broad standard modular system as well as specially designed application specific couplings are available. N-EUPEX claw or cam couplings Rated torque: 19 Nm … 62,000 Nm RUPEX pin-and-bush couplings Rated torque: 200 Nm … 1,300,000 Nm N-BIPEX spider couplings Rated torque: 12 Nm … 4,650 Nm ELPEX®, ELPEX-B® and ELPEX-S® Highly Flexible Couplings ELPEX® couplings are free of circumferential back-lash....

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N-Eupex-torsionally-flexible-couplings-available-from-jbj-Techniques-Limited-3

Flender Mechanical Power Transmission Couplings available from jbj Techniques FLUDEX couplings are hydrodynamic fluid couplings which operate on the Fottinger principle. FLUDEX® couplings limit starting and maximum torque in the drive train and, through the property of rotational slip, serve as an aid to starting the motor, as overload protection in the event of fault and for isolating torsional vibration. To compensate for shaft misalignment, the FLUDEX® coupling is combined with a displacement coupling e.g. of the N-EUPEX® type. Railway Couplings Couplings for rail vehicles developed, tested...

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N-Eupex-torsionally-flexible-couplings-available-from-jbj-Techniques-Limited-4

Mechanical Power Transmission Couplings Technical Information See the FLENDER COUPLINGS INTRODUCTION for: » Shaft coupling types. » Shaft misalignment. » Balancing. » Shaft hub connections. » Key to symbols & selection of coupling series. » Typical coupling solutions for different applications. » Selection of coupling size. » Checking shaft hub connection & environmental conditions. » Fitting recommendations including DIN ISO 286 details. » Cylindrical shaft ends, extract from DIN 748 Part 1 (long) & central holes according to DIN 332 Part 2. » Parallel Key Connections to Din 6885-1. #couplings-technical-info...

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N-Eupex-torsionally-flexible-couplings-available-from-jbj-Techniques-Limited-5

Torsionally Flexible Couplings N-Eupex Series Contents TORSIONALLY FLEXIBLE COUPLINGS N-Eupex Series Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . N-Eupex & N-Eupex DS Technical Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . N-Eupex Type A Technical Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . N-Eupex Type B Technical Specifications....

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N-Eupex-torsionally-flexible-couplings-available-from-jbj-Techniques-Limited-6

Mechanical Power Transmission Couplings New distribution partnership in the UK: We have now partnered with jbj Techniques Limited as the official partner for our whole couplings range in the United Kingdom and kicked off our cooperation by a digital signing of the partnership contract. JBJ has a wealth of experience in established and niche applications, such examples are: Mechanical drives for subsea wave energy, steel works crucible handling equipment or marine winch drives. We are happy to have them on our side for our UK coupling customers, especially for the supply of the recently optimized...

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N-Eupex-torsionally-flexible-couplings-available-from-jbj-Techniques-Limited-7

Torsionally Flexible Couplings N-Eupex Series Introduction N-EUPEX as overload-holding, fail-safe series N-EUPEX DS as overload-shedding, non-fail-safe series Coupling suitable for use in potentially explosive atmospheres. Complies with the current ATEX Directive for: II 2G Ex h IIC T6 ... T4 Gb X II 2D Ex h IIIC T85 °C ... 110 °C Db X I M2 Ex h Mb X N-EUPEX and N-EUPEX DS claw couplings (also known as pin / cam couplings) connect machines. They compensate for shaft misalignment, generating only low restorative forces. The torque is transmitted through elastomer elements, so the coupling has...

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N-Eupex-torsionally-flexible-couplings-available-from-jbj-Techniques-Limited-8

Torsionally Flexible Couplings N-Eupex Series Introduction Elastomer element of the N-EUPEX series The elements of the N-EUPEX coupling are subjected to compression. If the elements are irreparably damaged, the hub parts come into contact with metal. This "emergency operation capability" is required, e.g., in the case of fire pump drives. Elastomer flexible of the N-EUPEX DS series The elements of the N-EUPEX DS series are subjected to compression and bending forces. If the elements are irreparably damaged, the metal parts turn against one another without contact, and the power transmission is...

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N-Eupex-torsionally-flexible-couplings-available-from-jbj-Techniques-Limited-9

Torsionally Flexible Couplings N-Eupex Series Introduction » The technical data and part numbers do not include the flexible variants NBR low-backlash, HNBR high temperature and NR low temperature. » Technical data, prices and part numbers on request. Types of N-EUPEX pin coupling Type A Fail-safe, 2-part Fail-safe, 3-part, flange variant Fail-safe, 2-part, flange variant Fail-safe, with adapter Fail-safe, 2-part, with brake drum Fail-safe, 3-part, with brake drum Fail-safe, 2-part, with brake disk Fail-safe, 3-part, with brake disk Fail-safe, 3-part, with brake disk, brake disk radially dismountable...

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N-Eupex-torsionally-flexible-couplings-available-from-jbj-Techniques-Limited-10

Torsionally Flexible Couplings N-Eupex Series Introduction

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N-Eupex-torsionally-flexible-couplings-available-from-jbj-Techniques-Limited-11

Torsionally Flexible Couplings Part 10 Part 3 Part 2 N-Eupex Series Introduction Type DBDR Part 32 Part 1 Part 4 Note: Further application-related coupling types are available. Dimension sheets for and information on these are available on request.

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N-Eupex-torsionally-flexible-couplings-available-from-jbj-Techniques-Limited-12

Torsionally Flexible Couplings N-Eupex & N-Eupex DS Technical Specifications Power ratings of the N-EUPEX series Size Rated torque for flexible type Torsional stiffness at 50 % capacity utilization for flexible type Permitted shaft misalignment at n = 1500 rpm1) 65 ShoreA CTdyn 50% (kNm/rad) 80 ShoreA CTdyn 50% (kNm/rad) 90 ShoreA CTdyn 50% (kNm/rad) For maximum coupling torque: TKmax = 3,0 ⋅ TKN For coupling overload torque: TKOL = 3.5 ⋅ TKN For coupling fatigue torque: TKW = 0,15 ⋅ TKN, where TN > TW must be adhered to. Note For fitting, the maximum gap dimension of S max. = S + ΔS and the minimum...

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N-Eupex-torsionally-flexible-couplings-available-from-jbj-Techniques-Limited-13

Torsionally Flexible Couplings N-Eupex & N-Eupex DS Technical Specifications The damping coefficient is y = 1.4 Torsional stiffness and damping is further dependent on the ambient temperature and the frequency and amplitude of the torsional vibration excitation. More precise torsional stiffness and damping parameters on request. With flexible couplings the manufacturing process of the rubber elements and their aging primarily influence the stiffness value CTdyn. For this reason calculation must be made with a tolerance for the dynamic stiffness of ± 20 %. The specified damping coefficient y is a minimum...

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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.