Cardan Shafts for Industrial Applications - Dana
Cardan Shafts for Industrial Applications - Dana Cardan Shafts for Industrial Applications - Dana
Technical instructions for applicationLength dimensionsThe operating length of a cardanshaft is determined by:• the distance between the drivingand the driven units• the length compensation duringoperationThe following abbreviations areused:L z = Compressed lengthThis is the shortest length of theshaft. A further compression isnot possible.L a = Length compensationThe cardan shaft can be expandedby this amount. An expansionbeyond that dimension is notpermissible.L z + L a = Maximum permissibleoperating length L Bmax.L zL B max = L z + L aDuring operation, the cardan shaftcan be expanded up to this length.The optimum working length L B ofa cardan shaft is achieved if thelength compensation is extractedby one-third of its length.L B = L z +1L a [mm]3This general rule applies to mostof the arrangements. For applicationswhere larger length alterationsare expected, the operatinglength should be chosen in sucha way that the movement will bewithin the limit of the permissiblelength compensation.Arrangements of cardan shaftsA tandem arrangement of cardanshafts could become necessaryto cope with greater installationlengths.Cardan shaft with intermediate shaftCardan shaft with two intermediate shaftsBasic forms of shaft combinations:Two cardan shafts with double intermediate bearing44
Technical instructions for applicationIn such arrangements, the individualyoke positions and deflectionangles should be adjustedwith regard to one another insuch a way that the degree ofnon-uniformity (see Generaltheoretical instructions) and thereaction forces acting on theconnection bearings (see Technicalinstructions for application)are minimized.Load on bearings of the connectedunitsAxial forcesFor the design of a cardan shaft,it must be taken into account thataxial forces can occur. Theseforces must be absorbed by axialthrust bearings of the connectedunits.1. Frictional force F RLThis is the force that occursin the length compensation.It can be determined from:mF RL = T · · cos br mF RL = Frictional force from thelength compensation [N]It depends on:T = Torque of the cardanshaft [Nm]r m = Pitch circle radius in thesliding parts of the cardanshaft [m]m = Friction coefficient (dependson spline treatment):• 0,08 for plastic-coatedsplines• 0,11 for steel/steel (greased)b = Operating deflection angleAxial forces will occur duringlength variations in the cardanshaft. Additional axial forces arecaused by increasing torque andby increasing pressure duringlubrication of the splines. Theseforces will decrease automaticallyand can be accelerated by theinstallation of a relief valve.2. Power F pThis force occurs in the lengthcompensation due to the increasingpressure in the lubricationgrooves of the cardan shaft.The force depends on the lubricationpressure (maximum permissiblepressure is 15 bar).The axial force A k is a combinationof two components:Dana’s environmental protection management policyAn important feature of Dana’s environmental protectionmanagement policy is dedication to product responsibility.Because of this commitment, the effect of cardan shafts onthe environment is given considerable attention. SPICER ®GWB TM cardan shafts are lubricated with lead-free grease,their paint finishes are low in solvents and free of heavy metals,and they are easy to maintain. After use, they can beintroduced into the recycling process.45
- Page 1: Cardan Shafts forIndustrial Applica
- Page 4: Today, there are basically two type
- Page 8 and 9: Survey of Spicer ® GWB TM cardan s
- Page 10 and 11: Special designs of Spicer ® GWB TM
- Page 13 and 14: Intermediate shafts*(available with
- Page 15 and 16: Data sheet series 687/688DesignL f6
- Page 17 and 18: Data sheet series 687/688DesignL f2
- Page 19 and 20: Data sheet series 587DesignL fStand
- Page 21 and 22: Data sheet series 390 Maximum beari
- Page 23 and 24: Data sheet series 392/393 High torq
- Page 25 and 26: Data sheet series 492 Maximum torqu
- Page 27 and 28: Data sheet series 498DesignL fFlang
- Page 29 and 30: Data sheet series 587/190 Super sho
- Page 31 and 32: Data sheet series 230 Quick release
- Page 33 and 34: Data sheet Flange connection with s
- Page 35 and 36: Data sheet Standard companion flang
- Page 37 and 38: Design features series 390/392/3931
- Page 39 and 40: General theoretical instructionsThe
- Page 41 and 42: Technical instructions for applicat
- Page 43 and 44: Technical instructions for applicat
- Page 45: Technical instructions for applicat
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- Page 51 and 52: Selection of Spicer ® GWB TM carda
- Page 53 and 54: Additional information and ordering
- Page 55 and 56: GreeceSokrates Mechanics GmbH205, P
Technical instructions <strong>for</strong> applicationLength dimensionsThe operating length of a cardanshaft is determined by:• the distance between the drivingand the driven units• the length compensation duringoperationThe following abbreviations areused:L z = Compressed lengthThis is the shortest length of theshaft. A further compression isnot possible.L a = Length compensationThe cardan shaft can be expandedby this amount. An expansionbeyond that dimension is notpermissible.L z + L a = Maximum permissibleoperating length L Bmax.L zL B max = L z + L aDuring operation, the cardan shaftcan be expanded up to this length.The optimum working length L B ofa cardan shaft is achieved if thelength compensation is extractedby one-third of its length.L B = L z +1L a [mm]3This general rule applies to mostof the arrangements. For applicationswhere larger length alterationsare expected, the operatinglength should be chosen in sucha way that the movement will bewithin the limit of the permissiblelength compensation.Arrangements of cardan shaftsA tandem arrangement of cardanshafts could become necessaryto cope with greater installationlengths.<strong>Cardan</strong> shaft with intermediate shaft<strong>Cardan</strong> shaft with two intermediate shaftsBasic <strong>for</strong>ms of shaft combinations:Two cardan shafts with double intermediate bearing44
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