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Shaft Hub Connections RINGSPANN
Shaft Hub Connections RINGSPANN
This document provides an overview of RINGSPANN's shaft-hub connections, including shrink discs, cone clamping elements, star discs, and clamping systems for torque motors. It emphasizes their ability to transmit torque, axial forces, radial forces, and bending moments.
These connections are crucial for connecting shafts and hubs, offering higher torque transmission than conventional keyways. Shrink discs and cone clamping elements are noted for their compact and cost-effective design.
Shrink discs are external clamping connections used for backlash-free fastening of hollow shafts or hubs to shafts, generating radial forces through conical surfaces for optimal centering and torque transmission.
These internal clamping connections fasten hubs on shafts, creating a frictional connection suitable for components like sprockets and pulleys.
Used for applications requiring frequent clamping and release, providing backlash-free connections ideal for reversing operations and simultaneous transmission of torque and axial force.
These systems ensure secure, backlash-free torque transmission and precise centering of torque motors on machine shafts.
These washers serve as light spring elements for precision machines, reducing noise in ball bearings and compensating for free movement.
The document details a calculation method for ensuring accurate preload forces in shaft-hub connections, accounting for friction-coefficient fluctuations.
An online tool is available for calculating optimal shaft-hub connections, providing reliable results for hub dimensions, bearing pressures, and transmissible torques and axial forces.
Two-part shrink discs consist of an outer stepped conical ring and an inner stepped conical bush, generating radial clamping forces independent of friction coefficients.
- Distance-Controlled Assembly: Clamping screws are tightened uniformly until the stepped conical ring is flush with the bush.
- Torque-Controlled Assembly: Clamping screws are tightened to a specified torque.
- Three-Part Shrink Discs: Consist of a threaded flange, pressure flange, and slotted inner ring.
- Two-Part Shrink Discs (RLK 608): Feature high torque capacity and easy assembly.
- Easy and quick assembly.
- High power density and enclosed design for dirt resistance.
- True running at high speeds.
- Tables provide transmissible torque and axial force values for various shaft diameters and configurations.
- Material requirements include a yield strength of ≥360 N/mm² and an E-module of approximately 206 kN/mm².
- Backlash-free connection of hollow-shaft gearboxes to machine shafts.
- Simultaneous transmission of torque and axial force.
Shrink Discs are mechanical components used for connecting hollow shafts or hubs to solid shafts, designed to provide a backlash-free connection.
- RLK 606: Two-part design with high torque capacity.
- RLK 603: Three-part design offering high torque capacity.
- RLK 603 S: Similar to RLK 603 but with the highest torque capacity.
Detailed tables list dimensions, transmissible torque or axial force, clamping screws, and weights for each type of Shrink Disc.
Shrink Discs are made from materials with a yield strength of at least 340 N/mm².
Examples for ordering specific Shrink Discs are provided.
For detailed technical specifications, refer to the technical points on page 31 of the document.
This document provides technical specifications and installation guidelines for Cone Clamping Elements, specifically models RLK 110, RLK 110 K, RLK 130, and RLK 131.
- Surface Roughness: Average surface roughness at the contact surfaces is Rz = 10…25 µm.
- Materials: The shaft and hub require an E-module ≥ 170 kN/mm².
- Tolerances: h8 for shaft diameter d and H8 for hub bore D.
- RLK 110: Centers the hub to the shaft with high corrosion resistance.
- RLK 110 K: Similar to RLK 110 but with additional corrosion protection.
- RLK 130: Designed for very high transmissible torques.
- RLK 131: Ensures no axial displacement during clamping.
This document provides technical specifications and guidelines for various Cone Clamping Elements, specifically RLK 200, RLK 250, RLK 250 L, and RLK 300.
- RLK 200: Known for its easy release and compact design.
- RLK 250: Centers the hub to the shaft, suitable for small hub outer diameters.
- RLK 250 L: Similar to RLK 250 but designed for hollow shafts.
- RLK 300: Designed for individual clamping connections.
- Installation instructions are available upon request.
- For all elements, the E-module should be ≥ 170 kN/mm².
- For shaft diameter, h8 tolerance is required.
- RLK 250 for a shaft diameter of 50 mm: RLK 250, size 50 x 62, Article number 4202-050001-000000.
- If the hub cannot be freely moved, the values for torque, axial force, and contact pressure are reduced by 37%.
The document provides detailed technical specifications and guidelines for Cone Clamping Elements, specifically the Trantorque Mini and Trantorque OE series, as well as Star Discs.
- Cone Clamping Elements Trantorque Mini: Suitable for smallest shaft diameters.
- Cone Clamping Elements Trantorque OE: Designed for small shaft diameters.
- Star Discs: Made of special hardened spring steel.
- For simultaneous transmission of torque and axial force, the transmissible values are reduced.
- Average surface roughness for contact surfaces should be Rz = 10…25 µm.
- Examples of applications include backlash-free mounting of belt pulleys.
Catalog excerpts
Shaft-Hub-Connections Shrink Discs • Cone Clamping Elements • Star Discs Clamping Systems for torque motors • Star Spring Washers Edition 2022/2023 RINGSPANN® Registered Trademark of RINGSPANN GmbH, Bad Hom
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Frictional shaft-hub-connections Categories of RINGSPANN shaft-hub-connections Ensured Torques with the RINGSPANN Calculation Method Online Calculation Tool shaft-hub-connections Max. transmissible torque upto Shaft diameter Shrink Discs standard short Clamping Noaxial Actuating element displacement device centres ofthehub integrated thehubto totheshaft (screws) theshaft during clamping Design and Function of Shrink Discs RLK 608 Covers for Shrink Discs RLK 608 and RLK 606 RLK 603 Technical Points for Shrink Discs Shaft diameter Cone Clamping Elements Max. transmissible torque upto standard short...
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Max. transmissible torque upto Shaft diameter Star Discs standard short Clamping Noaxial element displacement centres ofthehub thehubto totheshaft theshaft during clamping Actuating device integrated (screws) Design and Function of Star Discs Clamping Connections with Star Discs Star Discs Technical Points for Star Discs Max. transmissible torque upto Shaft diameter Clamping Systems for torque motors standard short Clamping Noaxial element displacement centres ofthehub thehubto totheshaft theshaft during clamping Actuating device integrated (screws) Clamping Systems for torque motors RTM 601...
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Trantorque Mini Star Discs Star Spring Washers
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Frictional shaft-hub-connections Why frictional shaft-hub-connections? Frictionalshaft-hub-connectionsarestandard machine elements used to connect shafts and hubs. They are capable of transmitting torque,axialforces,radialforcesandbending moments. ShrinkDiscsandConeClampingElements Among the frictional shaft-hub-connections ShrinkDiscsandConeClampingElementstake animportantposition.Bytighteningclamping screws conical surfaces are pulled together generatingradialforces;theseforcesprovide therequiredfrictionalconnectionbetweenthe partsinvolvedinthetransmissionoftorquesor forces. ShrinkDiscsandConeClampingElementsare...
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Categories of RINGSPANN shaft-hub-connections Shrink Discs ShrinkDiscsareexternalclampingconnections forthebacklashfreefasteningofhollowshafts orhubstoshafts.Bytighteningclampingscrews conicalsurfacesarepulledtogethergenerating radialforces;theseforcespressthehollowshaft ontotheshaft.Torquesoraxialforcescanbe transmittedfrictionallyfromthehollowshaftto theshaft.TheShrinkDiscitselfisnotinvolvedin thetransmissionoftorquesoraxialforces.The radialclampingforceswhichactthroughthe circumferenceofthehollowshaftalsoensure anoptimumcentringtotheshaft. Shrink Discs are used, for example, to fasten machineshaftstogearboxeswithhollow-shafts....
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Ensured Torques with the RINGSPANN Calculation Method The RINGSPANN calculation method ensures thatsucherrorsinthedimensioningofshafthub-connectionsareavoided.Thisisachieved byusingamethodthathasbeentestedand provenovermanyyears,accordingtowhichthe realfrictioncoefficientμK inthecontactarea Simplified calculation method without accounting for friction-coefficient fluctuations Standard Berechnungsmethode RINGSPANN Berechnungsmethode RINGSPANN calculation method accounting for friction-coefficient fluctuations undertheheadofthescrewandμG inthescrew threading lie between 0,12 and 0,14. This conformstocurrentengineeringstandardsas...
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Online Calculation Tool shaft-hub-connections ThenewRINGSPANNCalculationToolhasbeen developedtoworkouttherightandtime-efficient dimensioning of an optimal shaft-hubconnection. WhetheraConeClampingElementoraShrink Disc,reliableresultsconcerningthenecessary hubdimensionsandbearingpressurescanbe determinedwithinafewminutes,aswellasthe transmissibletorquesandaxialforcesfordifferentstrengths,torquesandnumbersofscrews. Thismeansthatanyoversizingorundersizing of the elements can be avoided and a costoptimisedsolutionfoundfortheapplicationin question. Theuseofthetoolsisintuitivelydesignedand thecalculationresultsareavailableafterjusta...
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Design and Function of Shrink Discs Two-part Shrink Discs Design and Function Two-part shrink discs consist of an outer stepped conical ring, and an inner stepped conicalbush,aswellasanumberofclamping screws(seeFigure10-1). The stepped conical ring is pulled onto the steppedconicalbushbytighteningtheclamping screws. A radial clamping force is generatedbytheconicalsurfaces,whichisindependentofthefrictioncoefficientsatthescrews andconicalsurfaces.Theradialclampingforce presses the hollow shaft onto the shaft and createsafrictionalconnectionatthecontact surfaces between the shaft and the hollow...
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Design and Function of Shrink Discs Three-part Shrink Discs Pressureflange Innerring Three-part shrink discs consist of a threaded flange,apressureflange,aslottedinnerringand anumberofclampingscrews(seefigure11-1). Hollowshaft Clampingscrews Thethreadedflangeandthepressureflange are pulled together over the inner ring by tightening the clamping screws. A radial clamping force is generated by the conical surfaces which is dependent on the friction coefficientsatthescrewsandconicalsurfaces. Theradialclampingforcepressesthehollow shaftontotheshaftandcreatesafrictionalconnection at the contact surfaces...
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Shrink Discs RLK 608 two-part design highest torque capacity Features • Highesttorquecapacity • Transmissibletorqueof330Nmupto 4225000Nm • Easy,quickassemblybytightening clampingscrewswithoutatorquewrench • Distance-controlledassemblyensures guaranteedtransmissibletorques • Encloseddesign,thereforeimpervious todirt • Truerunningevenathighspeeds • Centresthehollowshaftorhubtotheshaft • Forhollowshaftsorhubswithouter diametersof30mmupto620mm 12-1 Application example Backlash free connection of a hollow-shaft gearboxtoamachineshaftwithaShrinkDisc RLK608.Thebacklashfreeconnectionreduces the risk...
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Shrink Discs RLK 608 two-part design highest torque capacity Shrink Disc released Shrink Disc clamped 13-1 Articlenumber Weight
Open the catalog to page 13All SIAM RINGSPANN catalogs and brochures
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