KTR EVOLASTIC Operating/Mounting Instructions
KTR EVOLASTIC is a double-cardanic, highly torsionally flexible, non-slip and backlash-free flange coupling. It dampens torsional vibrations and load shocks, reduces structure-borne noise transmission and compensates for axial, radial and angular displacements above average. EVOLASTIC is designed for use in a variety of industrial applications, including those with high torque and demanding operating conditions. It is known for its reliability and durability and is often used in applications with frequent start-up and stopping operations. It can be customized to meet specific needs by selecting appropriate elastomer parts and adjusting the mounting length.
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EVOLASTIC® Operating/Assembly instructions Type D2F KTR-N Sheet: Edition: EVOLASTIC® highly flexible coupling type D2F and their combinations Type D2F Please observe protection note ISO 16016. Drawn: Verified: 2021-07-14 Pz/Mai 2021-09-15 Va Replacing: Replaced by: --- 48613 EN 1 of 16 1 EVOLASTIC® Operating/Assembly instructions Type D2F KTR-N Sheet: Edition: 48613 EN 2 of 16 1 EVOLASTIC® type D2F is a double-cardanic, highly torsionally flexible, non-slip and backlash-free flange coupling. It dampens torsional vibrations and load shocks, reduces structure-borne noise transmission and compensates for axial, radial and angular displacements above average. Table of contents 1 2 3 4 Technical data 3 1.1 1.2 3 3 Coupling dimensions and technical data General dimensions and torques Advice 4 2.1 2.2 2.3 2.4 2.5 2.6 4 4 5 5 5 6 General advice Safety and advice symbols General hazard warnings Intended use Coupling selection Reference to EC Machinery Directive 2006/42/EC Storage, transport and packaging 6 3.1 3.2 6 6 Storage Transport and packaging Assembly 7 4.1 4.2 4.3 4.4 4.5 4.6 4.7 7 7 8 8 9 9 11 Components of the couplings Advice on remachining General advice for assembly Assembly of clamping sleeves (component 8) Assembly of the flanges (component 3) Assembly of the elastomer parts (component 1) Displacements - alignment of the couplings 5 Start-up 13 6 Breakdowns, causes and elimination 13 7 Disposal 15 8 Maintenance and service 15 9 Spares inventory, customer service addresses 16 Please observe protection note ISO 16016. Drawn: Verified: 2021-07-14 Pz/Mai 2021-09-15 Va Replacing: Replaced by: --- EVOLASTIC® Operating/Assembly instructions Type D2F 1 Technical data 1.1 Coupling dimensions and technical data KTR-N Sheet: Edition: 48613 EN 3 of 16 1 Type D2F Illustration 1: EVOLASTIC® type D2F Table 1: Dimensions - type D2F Size 360 Dimensions 1) [mm] Flange connection acc. to SAE - J620 / diameter 1) 14“ Cap screws DIN EN ISO 4762 B1 B2 D5 DR E L5 L7 M1 M2 85 78 405 160 8 9 10 M20 M20 1) For dimensions of flange connection see table 3. Dimensions DBSE, E1 and L as well as mass moment of inertia of intermediate shaft and total weight depend on the mounting length. ! 1.2 In case if a dimensional drawing was prepared for the coupling, the dimensions specified have to be primarily observed. General dimensions and torques Table 2: Technical data - type D2F Size 360 Flange connection acc. to SAE - J620 / diameter 1) 14“ Total weight with maximum bore of coupling [kg] 2) Mass moment of inertia with maximum bore of coupling [kgm2] JA JL 0.628 0.628 1) For dimensions of flange connection see table 9. 2) For dimensions of flange connnection see table 3. Dimensions DBSE, E1 and L depend on the mounting length. Table 3: Flange dimensions according to SAE J 620 Flange dimensions [mm] 14“ 466.62 438.15 8 x 45° 14 Nominal size Dimension DA Dimension D4 Z x Pitch Dimension DL Please observe protection note ISO 16016. Drawn: Verified: 2021-07-14 Pz/Mai 2021-09-15 Va Replacing: Replaced by: --- EVOLASTIC® Operating/Assembly instructions Type D2F 1 Technical data 1.2 General dimensions and torques KTR-N Sheet: Edition: 48613 EN 4 of 16 1 Table 4: Torques Size 360 Torque [Nm] Type of elastomers WN SN MN TKN 3200 3400 3600 TK max 6400 6800 7200 TK max1 9600 10200 10800 TKW 1280 1360 1440 Perm. operating speed [rpm] n nmax. 2700 3000 3060 3400 3060 3400 Maximum torque of coupling TK max = rated torque of coupling TKN x 2.0. The maximum torque TK max. indicates short-term torque peaks (e.g. when passing through the resonance). T K max may arise at the maximum 50,000 times as vibratory torque or 100,000 times as pulsating torque. Triple torque of coupling TK max1 = rated torque of coupling TKN x ~3.0. The triple rated torque TK max1 is the torque that may arise only rarely, but only 1,000 times at the maximum. Exceeding the triple torque of TK max1 may cause impairment resp. damage of the coupling components. 2 Advice 2.1 General advice Please read through these operating/assembly instructions carefully before you start up the coupling. Please pay special attention to the safety instructions! The operating/assembly instructions are part of your product. Please store them carefully and close to the coupling. The copyright for these operating/assembly instructions remains with KTR. 2.2 STOP ! Safety and advice symbols Warning of personal injury This symbol indicates notes which may contribute to preventing bodily injuries or serious bodily injuries that may result in death. Warning of product damages This symbol indicates notes which may contribute to preventing material or machine damage. General advice This symbol indicates notes which may contribute to preventing adverse results or conditions. Warning of hot surfaces This symbol indicates notes which may contribute to preventing burns with hot surfaces resulting in light to serious bodily injuries. Please observe protection note ISO 16016. Drawn: Verified: 2021-07-14 Pz/Mai 2021-09-15 Va Replacing: Replaced by: --- EVOLASTIC® Operating/Assembly instructions Type D2F 2 Advice 2.3 General hazard warnings STOP KTR-N Sheet: Edition: 48613 EN 5 of 16 1 With assembly, operation and maintenance of the coupling it has to be made sure that the entire drive train is secured against accidental switch-on. You may be seriously hurt by rotating parts. Make absolutely sure to read through and observe the following safety indications. • All operations on and with the coupling have to be performed taking into account "safety first". • Make sure to switch off the power pack before you perform your work on the coupling. • Secure the power pack against accidental switch-on, e. g. by providing warning signs at the place of switch-on or removing the fuse for current supply. • Do not reach into the operating area of the coupling as long as it is in operation. • Please secure the coupling against accidental contact. Provide for the necessary protection devices and covers. 2.4 Intended use You may only assemble, operate and maintain the coupling if you • have carefully read through the operating/assembly instructions and understood them • are technically qualified and specifically trained (e. g. safety, environment, logistics) • are authorized by your company The coupling may only be used in accordance with the technical data (see chapter 1). Unauthorized modifications on the coupling design are not admissible. We will not assume liability for any damage that may arise. In the interest of further development we reserve the right for technical modifications. The EVOLASTIC® described in here corresponds to the state of the art at the time of printing of these operating/assembly instructions. 2.5 ! Coupling selection For a permanent and failure-free operation of the coupling it must be selected according to the selection instructions (according to DIN 740 part 2) for the particular application (see catalogue "EVOLASTIC®"). If the operating conditions (performance, speed, modifications on engine and machine) change, the coupling selection must be reviewed. Make sure that the technical data regarding torque refer to the elastomer part only. The transmittable torque of the shaft-hub-connection must be reviewed by the customer and is subject to his responsibility. For drives subject to torsional vibrations (drives with cyclic stress due to torsional vibrations) it is necessary to perform a torsional vibration calculation to ensure a reliable selection. Typical drives subject to torsional vibrations are e. g. drives with diesel engines, piston pumps, piston compressors etc. If requested, KTR will perform the coupling selection and the torsional vibration calculation. Please observe protection note ISO 16016. Drawn: Verified: 2021-07-14 Pz/Mai 2021-09-15 Va Replacing: Replaced by: --- EVOLASTIC® Operating/Assembly instructions Type D2F 2 Advice 2.6 Reference to EC Machinery Directive 2006/42/EC KTR-N Sheet: Edition: 48613 EN 6 of 16 1 The couplings supplied by KTR should be considered as components, not machines or partly completed machines according to EC Machinery Directive 2006/42/EC. Consequently KTR does not have to issue a declaration of incorporation. For details about safe assembly, start-up and safe operation refer to the present operating/assembly instructions considering the warnings. 3 Storage, transport and packaging 3.1 Storage The metal components are supplied in preserved condition resp. with corrosion protection and can be stored in a dry and roofed place for 6 - 9 months. With favourable storage conditions the properties of the elastomer part remain unchanged for up to 5 years. ! ! 3.2 ! The storage rooms must not include any ozone-generating devices like e. g. fluorescent light sources, mercury-vapour lamps or electrical high-voltage appliances. Humid storage rooms are not suitable. Make sure that condensation is not generated. The best relative air humidity is less than 65 %. Please bear in mind that the elastomer part may be stored horizontally only. Transport and packaging In order to avoid any injuries and any kind of damage always make use of proper transport and lifting equipment. The couplings are packed differently each depending on size, number and kind of transport. Unless otherwise contractually agreed, packaging will follow the in-house packaging specifications of KTR. Please observe protection note ISO 16016. Drawn: Verified: 2021-07-14 Pz/Mai 2021-09-15 Va Replacing: Replaced by: --- EVOLASTIC® Operating/Assembly instructions Type D2F 4 KTR-N Sheet: Edition: 48613 EN 7 of 16 1 Assembly The coupling is supplied in the following subassemblies and single parts. Before assembly the coupling has to be inspected for completeness. 4.1 Components of the couplings Components of type D2F Component 1 2 3 4 5 6 7 8 Quantity 2 1 2 see table 5 see table 5 see table 5 see table 5 see table 5 Description Elastomer part E Intermediate shaft Flange Cap screw DIN EN ISO 4762 - 12.9 Ratchet washer Cap screw DIN EN ISO 4762 - 12.9 Ratchet washer Clamping sleeve DIN 7346 Illustration 2: EVOLASTIC® type D2F (size 360) Table 5: Number of cap screws, ratchet washers and clamping sleeves Size Number of cap screws (component 4) Number of ratchet washers (component 5) Number of cap screws (component 6) Number of ratchet washers (component 7) Number of clamping sleeves (component 8) 4.2 ! 360 8 8 16 16 8 Advice on remachining The customer bears the sole responsibility for all machining processes performed subsequently on unbored or pilot bored as well as finish machined coupling components and spare parts. KTR does not assume any warranty claims resulting from insufficient remachining. Please observe protection note ISO 16016. Drawn: Verified: 2021-07-14 Pz/Mai 2021-09-15 Va Replacing: Replaced by: --- EVOLASTIC® Operating/Assembly instructions Type D2F 4 Assembly 4.3 General advice for assembly ! ! 4.4 KTR-N Sheet: Edition: 48613 EN 8 of 16 1 The EVOLASTIC® coupling may only be assembled in the order described in here. In case if a dimensional drawing was prepared for the coupling, the dimensions specified have to be primarily observed. We recommend to inspect the coupling for dimensional accuracy before assembly. We recommend to secure all screw connections against working loose additionally to securing screws by the ratchet washer, e. g. applying Loctite screw adhesive (average strength), while the elastomer parts must not come into contact with any type of adhesive. Assembly of clamping sleeves (component 8) • Drive the clamping sleeves (component 8) in the flanges (component 3) resp. the attachments provided by the customer (see illustration 19). For the assembly of the clamping sleeves observe dimensions DB and LB1 according to catalogue "EVOLASTIC®". ! Any kind of twisting must be eliminated with assembly of the elastomer part (component 1). Illustration 3: Assembly of clamping sleeves (component 8) Please observe protection note ISO 16016. Drawn: Verified: 2021-07-14 Pz/Mai 2021-09-15 Va Replacing: Replaced by: --- EVOLASTIC® Operating/Assembly instructions Type D2F 4 Assembly 4.5 Assembly of the flanges (component 3) KTR-N Sheet: Edition: 48613 EN 9 of 16 1 • Push the flanges (component 3) in the centerings of the attachments provided by the customer. • Align the through holes of the connection flanges to the threads of the attachments provided by the customer. • Hand-tighten the components via suitable screws (not part of the scope of delivery) first. • Tighten the screws at the tightening torques TA specified in table 6 by means of a suitable torque wrench. We recommend to secure all screw connections against working loose additionally, e. g. applying Loctite screw adhesive (average strength), while the elastomer parts must not come into contact with any type of adhesive. ! Table 6: Screw tightening torques for screwing the flange (component 3) Size of flywheel acc. to SAE - J620 1) Screw size Tightening torque [Nm] Minimum screw strength Inch screw Tightening torque [Nm] Minimum screw strength 14“ M12 120 10.9 1/2 - 13 150 8 1) For dimensions of flange connection see table 3. 4.6 ! Assembly of the elastomer parts (component 1) We recommend to secure all screw connections against working loose additionally, e. g. applying Loctite screw adhesive (average strength), while the elastomer parts must not come into contact with any type of adhesive. • Mount the elastomer parts (component 1) to the flanges (component 3) resp. the attachments provided by the customer and align the bores to the clamping sleeves (component 8) (see illustration 4). • Hand-tighten the elastomer parts and the flanges via the cap screws (component 4) and the ratchet washers (component 5) first. Make sure that the ratchet washer (component 5) is inserted with the convex side to the screw head of the cap screw (component 4). • Tighten the cap screws (component 4) to the tightening torques TA1 specified in table 7 by a suitable torque wrench. Please observe protection note ISO 16016. Drawn: Verified: Illustration 4: Assembly of the elastomer parts to the flanges 2021-07-14 Pz/Mai 2021-09-15 Va Replacing: Replaced by: --- EVOLASTIC® Operating/Assembly instructions Type D2F 4 Assembly 4.6 Assembly of the elastomer parts (component 1) KTR-N Sheet: Edition: 48613 EN 10 of 16 1 • Insert the intermediate shaft (component 2) in one of the two elastomer parts. Align the threads of the intermediate shaft (component 2) to the bores of the elastomer part (see illustration 5). • Hand-tighten the elastomer parts and the flanges via the cap screws (component 6) and the ratchet washers (component 7) first. Make sure that the ratchet washer (component 7) is inserted with the convex side to the screw head of the cap screw (component 6). • Shift the power pack of the driven side resp. the opposite side in axial direction until the mounting dimension E1 is achieved. Align the bores of the second elastomer part resp. the attachment provided by the customer to the threads of the intermediate shaft (component 2) (see illustration 5). Illustration 5: Assembly of the elastomer parts to the intermediate shaft • Hand-tighten the elastomer parts and the flanges via the cap screws (component 6) and the ratchet washers (component 7) first. Make sure that the ratchet washer (component 7) is inserted with the convex side to the screw head of the cap screw (component 6). • Tighten the cap screws (component 6) to the tightening torques T A2 specified in table 7 by a suitable torque wrench. The clamping sleeves (component 8) respectively double radial screw connection (cap screws, component 6) prevent twisting of the elastomer parts with mounting. Table 7: Cap screws DIN EN ISO 4762 - 12.9 (component 5 and 7) Size Dimension M1 Tightening torque TA1 [Nm] Dimension M2 Tightening torque TA2 [Nm] Please observe protection note ISO 16016. Drawn: Verified: 360 M20 592 M20 592 2021-07-14 Pz/Mai 2021-09-15 Va Replacing: Replaced by: --- EVOLASTIC® Operating/Assembly instructions Type D2F 4 Assembly 4.7 Displacements - alignment of the couplings KTR-N Sheet: Edition: 48613 EN 11 of 16 1 The EVOLASTIC® flange couplings compensate for position deviations of the machine components to be connected up to the data specified in table 8. With alignment, the radial and angular displacement should be kept as small as possible, because the service life is increased in this way if the operating conditions are otherwise maintained. Alignment of the EVOLASTIC® flange coupling is made between driving and driven side flange. In order to ensure a long service life of the coupling, the shaft ends have to be accurately aligned. Please absolutely observe the displacement figures specified (see table 8). If the figures are exceeded, the coupling will be damaged. The more accurate the alignment of the coupling, the longer is its service life. ! Please note: • The displacement figures specified in table 8 are maximum figures which must not arise in parallel. If radial and angular displacements arise at the same time, the permissible displacement values may only be used proportionally (see illustration 7). • The radial and angular displacement figures specified refer to a reference speed of 1500 rpm. The diagramme of displacement alignment (see illustration 8) provides for a speed-dependent increase or reduction of displacement figures by factor frpm. The displacement figures between the speeds specified have to be interpolated accordingly. • The figures of maximum displacements refer to the mounting process, in addition they are permissible for a short time respectively rarely at standstill or with start-up operation as well as with exceptional loading conditions. • The displacement figures are general standard figures that apply up to an ambient temperature of +80 °C, ensuring a sufficient service life of the EVOLASTIC® coupling. • Inspect with a dial gauge, ruler or feeler gauge whether the permissible displacement figures specified in table 8 can be observed. Axial displacement Radial displacement Angular displacement Illustration 6: Displacements Please observe protection note ISO 16016. Drawn: Verified: 2021-07-14 Pz/Mai 2021-09-15 Va Replacing: Replaced by: --- EVOLASTIC® Operating/Assembly instructions Type D2F 4 Assembly 4.7 Displacements - alignment of the couplings Examples of the displacement combinations specified in illustration 7: KTR-N Sheet: Edition: 48613 EN 12 of 16 1 Illustration 7: Combinations of displacement Example 1: Kr = 30 % Kw = 70 % Example 2: Kr = 60 % Kw = 40 % Ktotal = Kr + Kw 100 % Table 8: Displacement figures per elastomer part Size Perm. axial displacement Ka [mm] Perm. radial displacement Kr [mm] Perm. angular displacement Kw [°] 360 ±4.0 3.0 5.0 2.0 4.0 1500 rpm max. 1) 1500 rpm max. 1) 1) With assembly for a short time resp. rarely with downtime or start-up operation as well as exceptional load conditions. Illustration 8: Diagramme of displacement alignment Please observe protection note ISO 16016. Drawn: Verified: 2021-07-14 Pz/Mai 2021-09-15 Va Replacing: Replaced by: --- EVOLASTIC® Operating/Assembly instructions Type D2F 5 KTR-N Sheet: Edition: 48613 EN 13 of 16 1 Start-up Before start-up of the coupling, inspect the alignment and the distance dimension E and adjust, if necessary, and also inspect all screw connections for the tightening torques specified. Finally the coupling protection against accidental contact must be fitted. It is required in accordance with DIN EN ISO 12100 (Safety of Machinery) and directive 2014/34/EU and must protect against • access with a little finger • falling down of solid foreign objects. The cover may provide for openings intended for necessary heat dissipation. These openings have to comply with DIN EN ISO 13857. During operation of the coupling, please pay attention to • different operating noise • vibrations occurring. ! 6 If you note any irregularities with the coupling during operation, the drive unit must be switched off immediately. The cause of the breakdown must be specified by means of the table „Breakdowns“ and, if possible, be eliminated according to the proposals. The potential breakdowns specified can be hints only. To find out the cause all operating factors and machine components must be considered. Breakdowns, causes and elimination The below-mentioned failures can lead to improper use of the EVOLASTIC® coupling. In addition to the specifications given in these operating/assembly instructions make sure to avoid such failures. The errors listed can only be clues to search for the failures. When searching for the failure the adjacent components must generally be considered. General failures with use other than intended: • Important data for the coupling selection are not forwarded. • The calculation of the shaft-hub-connection is not considered. • Coupling components with damage occurred during transport are assembled. • If the heated hub is assembled, the permissible temperature is exceeded. • The clearance of the components to be assembled is not coordinated with one another. • Tightening torques have been fallen below/exceeded. • Components are mixed up by mistake/assembled incorrectly. • No original KTR components (purchased parts) are used. • Old/already worn out elastomer parts or those stored for too long are used. • Maintenance intervals are not observed. Please observe protection note ISO 16016. Drawn: Verified: 2021-07-14 Pz/Mai 2021-09-15 Va Replacing: Replaced by: --- EVOLASTIC® Operating/Assembly instructions Type D2F 6 KTR-N Sheet: Edition: 48613 EN 14 of 16 1 Breakdowns, causes and elimination Breakdowns Causes Elimination 1) Set the unit out of operation 2) Eliminate the reason for the misalignment (e. g. loose Errors in alignment, too high foundation bolts, fracture of the engine mount, heat displacement, internal contact expansion of unit components, modification of the of coupling components installation dimension E of the coupling) 3) For visual inspection/inspection of wear see chapter 8 Different operating noise Maintenance and/or vibrations occuring 1) Set the unit out of operation Axial fastening of hubs 2) Inspect alignment of coupling working loose and screw 3) For visual inspection/inspection of wear see chapter 8 connection unfastened Maintenance 4) Secure the hubs axially and against working loose 1) Set the unit out of operation 2) Disassemble the coupling and remove remainders of the Fracture of elastomer part/ elastomer part high dynamic energy/ 3) Inspect coupling components and replace coupling overload components that are damaged 4) Insert elastomer part, assemble coupling components 5) Find out the reason for overload 1) Set the unit out of operation Operating parameters do not 2) Review the operating parameters and select a bigger Fracture of elastomer part meet with the performance of coupling (consider mounting space) the coupling 3) Assemble new coupling size 4) Inspect alignment 1) Set the unit out of operation 2) Disassemble the coupling and remove remainders of the elastomer part Operating error of the unit 3) Inspect coupling components and replace coupling components that are damaged 4) Insert elastomer part, assemble coupling components 5) Instruct and train the service staff 1) Set the unit out of operation 2) Disassemble the coupling and remove remainders of the elastomer part Vibrations of drive, resonance 3) Inspect coupling components and replace coupling in the elastomer components that are damaged 4) Insert elastomer part, assemble coupling components 5) Inspect alignment, adjust if necessary 6) Find out the reason for vibrations (selection of loads) 1) Set the unit out of operation 2) Disassemble the coupling and remove remainders of the High rotational angles during ambient/contact temperatures elastomer part operation, formation of which are too high for the 3) Inspect coupling components and replace coupling wrinkles up to external cracks elastomer part, components that are damaged in the elastomer part, fracture max. permissible 4) Insert elastomer part, assemble coupling components of elastomer, internal -30 °C/+80 °C 5) Inspect alignment, adjust if necessary depolymerisation 6) Inspect and adjust ambient/contact temperature 1) Set the unit out of operation 2) Disassemble the coupling and remove remainders of the e. g. contact with aggressive elastomer part liquids/oils, influence by 3) Inspect coupling components and replace coupling ozone, too high ambient components that are damaged temperature etc. causing a 4) Insert elastomer part, assemble coupling components physical change of the 5) Inspect alignment, adjust if necessary elastomer part 6) Make sure that other physical modifications of the elastomer part are excluded Please observe protection note ISO 16016. Drawn: Verified: 2021-07-14 Pz/Mai 2021-09-15 Va Replacing: Replaced by: --- EVOLASTIC® Operating/Assembly instructions Type D2F 7 KTR-N Sheet: Edition: 48613 EN 15 of 16 1 Disposal In respect of environmental protection we would ask you to dispose of the packaging resp. products on termination of their service life in accordance with the legal regulations and standards that apply. • Metal Any metal components have to be cleaned and disposed of by scrap metal. • Nylon materials Nylon materials have to be collected and disposed of by a waste disposal company. 8 Maintenance and service We recommend to perform a visual inspection on the coupling at least once a year. Please pay special attention to the condition of the elastomer part of the coupling. • Remove loose dirt from the coupling. • Inspect the coupling for spalling or missing components, if necessary. Inspect the elastomer part in particular for cracks. • Defective components must be replaced immediately resp. missing components must be replaced immediately. • Inspect and correct the tightening torques of all screw connections, if necessary. • Since the flexible machine bearings of the driving and driven side settle during the course of load, inspect the alignment of the coupling and re-align the coupling, if necessary. Please perform visual inspection as follows: • Inspect adhesion of the elastomer to the metal insert. • Inspect the elastomer part for wrinkles or cracks in the areas marked with , , , and in illustration 9. Formation of wrinkles is trouble-free, but dependent on the application may generate cracks in the long run. If the cracks in the areas marked achieve or exceed the limit specified in table 9, the elastomer part must be replaced. ! Elastomer parts that are damaged or worn off have to be replaced, with the maintenance interval of the engine at the latest. Illustration 9: Visual inspection Table 9: Crack depth Size Max. perm. crack depth [mm] Please observe protection note ISO 16016. Drawn: Verified: 360 8.0 2021-07-14 Pz/Mai 2021-09-15 Va Replacing: Replaced by: --- EVOLASTIC® Operating/Assembly instructions Type D2F 9 KTR-N Sheet: Edition: 48613 EN 16 of 16 1 Spares inventory, customer service addresses We recommend to store major spare parts on site to ensure the readiness for use of the machine in case if a coupling fails. Contact addresses of the KTR partners for spare parts and orders can be obtained from the KTR homepage at www.ktr.com. KTR does not assume any liability or warranty for the use of spare parts and accessories which are not provided by KTR and for the damages which may incur as a result. Please observe protection note ISO 16016. Drawn: Verified: 2021-07-14 Pz/Mai 2021-09-15 Va Replacing: Replaced by: --- ">

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Key features
- Double-cardanic design
- High torsional flexibility
- Non-slip and backlash-free
- Dampens vibrations
- Reduces noise transmission
- Compensates for displacement
- Adjustable mounting length