Catalog excerpts
N-EUPEX CLAW COUPLINGS
Open the catalog to page 1Flender 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...
Open the catalog to page 2Flender 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,...
Open the catalog to page 3Mechanical 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....
Open the catalog to page 4Torsionally 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...
Open the catalog to page 5Mechanical 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...
Open the catalog to page 6Torsionally 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...
Open the catalog to page 7Torsionally 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...
Open the catalog to page 8Torsionally 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...
Open the catalog to page 9Torsionally Flexible Couplings N-Eupex Series Introduction
Open the catalog to page 10Torsionally 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.
Open the catalog to page 11Torsionally 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...
Open the catalog to page 12Torsionally 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...
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