CENTAFLEX R - CENTA Power Transmission

1 CENTAFLEX -RPOWER TRANSMISSIONLEADING BY INNOVATIONCATALOG FLEXIBLE COUPLINGSFOR HEAVY DUTY APPLICATIONS2 CENTAP ower transmissionleading by innovationThe CENTAFLEX -R is a simple robust ROLLER coupling with a progressive torsional characterisation. Ideal for boat drives, providing a very low stiff-ness at low torque (& speed) which shifts the torsional resonance below idle speed and prevents gearhammer (gear chatter).And there are also numerous applica-tions for this kind of coupling in many different industrial the rubber-in-compression prin ciple with rubber rollers between cams, the coupling offers high relia-bility as it is free from a bonding process common in couplings of equal associated cams are profiled using sophisticated computer design (CAD) backed by extensive physical features and advantages of the CENTAFLEX -series R.

2 Progressive torsional characteristic with very low stiffness at low torque and increased, but moderate stiff-ness at high torque Fail safe Simple, reliable, no bonding, only rubber in compression Special developed, temperature resistant elastomer CENTALAN with high damping, suitable for high ambient temperature of more than 100 C (212 F) For commercial heavy duty or diffi-cult applications we recommend the special HD rubber rollers, which are also oilresistant. Well proven in service and approved by classification societies High allowable energy loss by intensive inner and outer ventila-tion Suitable for blind fitting in bell housings Economic/easy maintainable design Protected by international patents Area of application: flange mounted units or well aligned independently mounted units on rigid mounts The CF-R is part of the CENTA - Antriebe family of marine drive couplings covering a range between the more than 100000 times proven CENTAFLEX -DS (Dual Stage) series and the well estab-lished, CENTAX series up to 500 -RTechnical DataCentaflex-RRated torque TK [kNm] for duty:Max.

3 Torque**Flywheel sizeMax. speedThis table shows only the basic technical data required for coupling selection based on engine nominal torque and duty only. We can provide much more detailed technical data, which may be required for the conduction of a torsional vibrati-on analysis. Please ask for data sheet ResponsibilityThe responsibility for ensuring torsional compati-bility rests with the assembler of the drive train. CENTA cannot accept liability for gearbox noise or for damage of the coupling or other compon-ents of the drive caused by torsional vibrations. Torsional vibration analysis can be made by the engine builders, survey societies, consultants etc. or by ResponsibilityThe dimensions on the flywheel side of the couplings are based on standards SAE J620 and DIN 6281, and special flanges.

4 The responsibility for ensuring dimensional compatibility rests with the assembler of the drive train. CENTA can-not accept liability for interference between the coupling and the flywheel or the gearbox or for damage caused by such *intermediatecontinuousTKmax [kNm]SAE J620[rpm]940,250,200,170,756,5 - 165and special50001140,700,560,492,1011,5 - 29040001341,000,800,703,0011,5 - 29040001361,601,251,114,8011,5 - 29040002163,152,502,209,4011,5 - 29014 - 355350030002684,253,403,0012,5014 - 35530003186,305,004,4019,0014 - 35518 - 4603000260042010,008,007,0030,0018 - 46021 - 5302600230052015,0012,0010,5045,0018 - 46021 - 53026002300*The rated torque for pleasure duty is the nominal torque TKN of the coupling.**Torque for transient conditionsOther fly-wheel sizes are availableFor higher speeds please consult usWe reserve the right to amend any dimension or detail specified or illustrated in this publication without notice and without incurring any obligation to provide such modification to such couplings previously ask for an application drawing and current data before making detailed coupling transmissionleading by innovationDesign variationsStandard flange designs are based on SAEJ620c flywheels but special sizes are available upon shaft designs can be accomo-dated as the hubs are made of high grade steel and splined, tapered (including oil injection fitted)

5 And parallel shafts can be drawings of custom-ized coup lings for all important marine gear series are available on or floating splined input shafts can be accomodated, as the floating spline design has an integral axial location with thrust capacity. Both designs are of the same overall are uni-directional based on CCW rotation (viewing the fly-wheel), however sizes 420 and 520 are also available for CW fail safe feature can easily be removed, if it is not -RDimensionsApplication examples:Copyright to this technical document is held by CENTA Antriebe Kirschey GmbH 2000 CENTAX and CENTAFLEX :Registered Trademark of CENTA AntriebeCF-RSized1min-maxN1L*A1A2A3C*Ed5 d6 SAEJ620 SZDADT weight[kg]Order Code9431,75504232101367,21481506,5 - 16596x60 215,92002,4CF-R-94-06-00000-HR11420 - 40504722,524,5-477,220820811,5 - 290118x45 352,4333,43,9CF-R-114-011-00000-HR13430 - 507046252235011,224524511,5 - 290118x45 352,4333,45,5CF-R-134-011-00000-HR13630 - 507046252235011,224524511,5 - 290118x45 352,4333,45,5CF-R-136-011-00000-HR21640 - 609511650,523,55711616,531431311,5 - 29014 - 35511138x45 8x45 352,4466,7333,4438,21819,5CF-R-216-011-0 0000-HRCF-R-216-014-00000-HR26850 - 90125123472161130,31740940914 - 355138x45 466,7438,223CF-R-268-014-00000-HR31850 - 90125123682165155,31740940914 - 35518 - 460131716x22,5 12x30 466,7571,5438,2542,92527CF-R-318-014-000 00-HRCF-R-318-018-00000-HR42050 - 1151601629068-2258149361449851118 - 46021 - 530171712x30 12x30 571,5673,1542,9641.

6 44447CF-R-420-018-00000-HRCF-R-420-021-0 0000-HR52050 - 130180194130-561874050-51118 - 46021 - 530171712x30 24x15 571,5673,1542,9641,44852CF-R-520-018-000 00-HRCF-R-520-021-00000-HR* dimensions C and L can be shortenedFor small gears with splined input shaft, on which the coupling can float axially, a steelplate on the outer flange holds the coupling together axially (sizes 94, 114, 134, 136)Coupling design for exchange of rollers, normal working design is also suitable for free standing, non flanged gears, provided the engine is on rigid mounts and well required by the torsional situation, a steel disc as additional secondary inertia can be of side plate of the output hub can optionally be bolted on and off. This feature allows easy and quick change of the rubber rollers in situ as well on free standing gears and on flange mounted gears, provided the bell housing offers sufficient space and large enough openings.

7 CENTA can also deliver a spacer for the bell housing in order to provide the necessary - the complete range of advanced flexible couplings and shafts for all kinds of boat Couplings for flange mounted gearsCENTAX - L - G - B - DPFor larger boats and ships CENTA has the complete range of advanced flexible couplings and shafts up to 650 kNmD-42755 Haan 1125 Telefon: ++49-2129-912-0e-mail: Strasse 7 Fax: ++49-2129-27 90 Couplings for large free standing gearsCENTAMAX-Slinear disc type couplingT = 0,25 - 40 kNmCENTA Couplings for remote mounted gears, V-drives, stern-drives and water jetsCENTAX-Vintermediate coupling for u/jT = 0,2 - 50 kNmCENTA-FH flange housing with flexible coupling for u/jT = 1 - 20 kNmCENTAFLEX-A-G/A-GZ/A-GStorsional soft flexible shaft for angle up to 2 per elementT = 0,1 - 14 kNmCENTAFLEX-DSprogressive dual stage couplingT = 0,25 - 2 kNmCENTAFLEX-Rprogressive roller couplingT = 0.

8 25 - 15 kNmCENTA also delivers all kinds of flexible couplings and lightweight steel or carbonfibre shafts - with or without propeller thrust - to be installed between gear and propeller or waterjetFree standing gears - close coupledCENTAMAX-Bfor slight misalignmentT = 0,25 - 20 kNmCENTAX-Nfor reasonable misalignmentT = 1,1 - 25 kNmCENTAX-Lfor substantial misalignmentT = 2 - 90 kNmLEADING BY INNOVATION CENTA is the leading producer of flexible couplings for industrial, marine and Power generating applications. ENTA Power TRANSMISSIONA family business with headquarters in Haan, GermanySubsidiaries in 10 major industrial in 25 other after-sales service with over 300 success: over 15 million CENTA couplings installed since AustriaBelgiumBulgariaBrazilCanada ChileChina Czech RepublicDenmark FinlandFranceGermany Great Britain GreeceHong KongHungaryIndiaIsraelItaly JapanJordanMexico Netherlands New Zealand Norway PeruPolandPortugalSingapore SlovakiaSouth AfricaSouth KoreaSpainSweden SwitzerlandTaiwan TurkeyUSA CENTA headoffice and subsidiaries are marked with the CENTA our world wide address database at WIDE NETWORKCENTA Antriebe Kirschey GmbH Bergische Strasse 742781 Haan/Germany+49-2129-9120 Phone+49-2129-2790 OFFICE