Series 90 Axial Piston Motors - BIBUS HYDRAULIK AG

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MAKING MODERN LIVING POSSIBLETechnical InformationSeries 90Axial Piston

Technical InformationSeries 90 Axial Piston MotorsRevision HistoryTable of Revisions2DateChangedRevMarch 2014connector corrections on page 18FBFebruary 2014Danfoss LayoutFANovember 2013remove variable motors informationEANovember 2012various updatesDCSeptember 2008flange to shaft length dimension should be [5.15 0.001]DBApril 2007Remove allowable shaft loading data - consult factoryDAMarch 2004Fourth editionD520L0604 Rev FB March 2014

Technical InformationSeries 90 Axial Piston MotorsContentsGeneral DescriptionTechnical SpecificationsOperating ParametersSystem Design ParametersFeatures and OptionsInstallation DrawingsSeries 90 Family of Pumps and Motors.4Fixed Displacement Motor, SAE Mount.4Fixed Displacement Motor, Cartridge Mount. 5Pictorial Circuit Diagram. 6System Schematic. 6Overview.7Features and Options.7Specifications. 7Operating Parameters.7Fluid Specifications.8Overview.9Speed Limits. 9System Pressure. 9Servo Pressure. 9Case Pressure. 9Hydraulic Fluids. 10Temperature and Viscosity.10Fluid and Filtration. 11Independent Braking System. 11Reservoir.11Overpressure Protection. 11Case Drain.12Sizing Equations. 12Formulas. 12External Shaft Loading and Bearing Life.12Applications with external shaft loads.13Loop Flushing.15Speed Sensor. 17Shaft Options.1890K55 Fixed Motor Cartridge Mount. 2090M55 Fixed Motor SAE Mount. 2290K75 Fixed Motor Cartridge Mount. 2490M75 Fixed Motor SAE Mount. 2690M100 Fixed Motor SAE Mount.2890M130 Fixed Motor SAE Mount.30520L0604 Rev FB March 20143

Technical InformationSeries 90 Axial Piston MotorsGeneral DescriptionSeries 90 Family of Pumps and MotorsSeries 90 hydrostatic pumps and motors can be applied together or combined with other products in asystem to transfer and control hydraulic power. They are intended for closed circuit applications.Series 90 variable displacement pumps are compact, high power density units. All models utilize theparallel axial piston/slipper concept in conjunction with a tiltable swashplate to vary the pump'sdisplacement. Reversing the angle of the swashplate reverses the flow of oil from the pump and thusreverses the direction of rotation of the motor output.Series 90 pumps include an integral charge pump to provide system replenishing and cooling oil flow, aswell as control fluid flow. They also feature a range of auxiliary mounting pads to accept auxiliaryhydraulic pumps for use in complementary hydraulic systems. A complete family of control options isavailable to suit a variety of control systems (mechanical, hydraulic, electric).Series 90 motors also use the parallel axial piston/slipper design in conjunction with a fixed swashplate.They can intake/discharge fluid through either port; they are bidirectional. They also include an optionalloop flushing feature that provides additional cooling and cleaning of fluid in the working loop. Series 90 – advanced technology todaySeven sizes of variable displacement pumpsFour sizes of fixed displacement motorsSAE and cartridge mount configurationsEfficient axial piston designProven reliability and performanceCompact, lightweightWorldwide sales and serviceFixed Displacement Motor, SAE MountCross sectionLoop flushing valveValve platePistonRoller bearingOutput shaftP100 490EFixed swashplateCylinder block4520L0604 Rev FB March 2014

Technical InformationSeries 90 Axial Piston MotorsGeneral DescriptionName plateModelNumber501829Model-No./Ident-No.Model Code 90M100 NC 0 N 7 N 0 C7W 00 CBA 00 00 83ModelCodeSerialNumberA - 00 - 13 - 67890Serial-No.Made in GermanyP101372EPlace of ManufactureFixed Displacement Motor, Cartridge MountCross sectionCylinder blockCharge relief valvePistonRoller bearingLoop flushingvalveOutputshaftValve plateP104 253ESwashplateName plate501829Model-No./Ident-No.Model Code 90M100 NC 0 N 7 N 0 C7ModelCodeModelNumberW 00 CBA 00 00 83Serial-No.A - 00 - 13 - 67890SerialNumberMade in ChinaP101372E--Place of Manufacture520L0604 Rev FB March 20145

Technical InformationSeries 90 Axial Piston MotorsGeneral DescriptionPictorial Circuit DiagramThis configuration shows a hydrostatic transmission using a Series 90 axial piston variable displacementpump and a Series 90 fixed displacement motor.Control handleDisplacement control valveHeat exchanger bypass valveReservoirOrificed checkvalveReversible variabledisplacement pumpServo control cylinderVacuum gaugeHeat exchangerCharge pressurerelief valveMulti-function valvePurge relief valveP102 000Fixed displacement motorTopumpcaseServopressurerelief valvesCharge pumpInput shaftOutput shaftMulti-function valvePump swashplateMotor swashplateLoop flushing valveServo control cylinderPumpWorking loop (high pressure)MotorWorking loop (low pressure)Suction lineControl fluidCase drain fluidL2M1System SchematicM3AABBM3M1M4M5MM2S6520L0604 Rev FB March 2014L2L1M2P104 286E

Technical InformationSeries 90 Axial Piston MotorsTechnical SpecificationsOverviewSpecifications for the Series 90 motors are listed here for quick reference. For definitions and additionalinformation, see Operating Parameters on page 7.Features and OptionsMotor typeIn-line, axial piston, closed loop, positive displacement motorsDirection of rotationBi-directional, see outline drawings for rotation vs. flow direction informationInstallation positionDiscretionary: Housing must be filled with hydraulic fluidOther system requirements Independent braking system, overpressure protection, suitable reservoir, properfiltrationParameter055 MF075 MF100 MF130 MFTypes of mounting (SAE flangesize per SAE J744)SAE C, cartridgeSAE C, cartridgeSAE CSAE DPort connectionsTwin, axialTwin, axialTwinTwinOutput shaft optionsSpline, tapered,straightSpline, tapered,straightSpline, tapered,straightSplineControl options————Loop flushing Speed sensoroooo Standardo Optional— Not available / not applicableSpecificationsParameter055 MF075 MF100 MF130 MFSwashplateFixedFixedFixedFixedMax. displacementcm³/rev [in³/rev]55 [3.35]75 [4.57]100 [6.10]130 [7.90]Maximum corner power kW [hp]187 [251]237 [318]292 [392]354 [475]Theoretical torqueN m/bar [lbf in/1000 psi]0.88[530]1.19[730]1.59[970]2.07[1260]Weightkg [lb]SAE22 [49]26 [57]34 [74]45 [99]Cartridge26 [57]33 [72]——0.0060 [0.0044]0.0096 [0.0071]0.0150 [0.0111]0.0230 [0.0170]Mass moment of inertiakg m² [slug ft²]Operating ParametersParameterUnit055 MF075 MF100 MF130 MFmin-1(rpm)Speed limitsContinuous (max. disp.)3900360033003100Maximum (max. disp.)4250395036503400Continuous (min. disp.)————Maximum (min. disp.)————System pressure520L0604 Rev FB March 20147

Technical InformationSeries 90 Axial Piston MotorsTechnical SpecificationsParameterUnit055 MFContinuousbar [psi]420 [6000]Maximum075 MF100 MF130 MF215 [57]270 [71]330 [87]403 [106]234 [62]296 [78]365 [96]442 [117]480 [7000]Flow ratingsRated (max. disp., rated speed)l/min [US gal/min]Maximum (max. disp., max. speed)Case pressureContinuousbar [psi]3 [44]Maximum (cold start)5 [73]Fluid SpecificationsViscosity mm²/sec (cSt) [SUS]Minimum7 [49]Continuous12-80 [70-370]Maximum1600 [7500]Temperature C [ F] (measured at the hottest point in the system, usually the case drain)Minimum-40 [-40]Continuous104 [220]Maximum115 [240]FiltrationCleanliness822/18/13 or better per ISO 4406Efficiency (suction filtration)β35-45 75 (β10 2)Efficiency (charge filtration)β15-20 75 (β10 10)Recommended inlet screen size100-125 µm [0.0039-0.0049 in]520L0604 Rev FB March 2014

Technical InformationSeries 90 Axial Piston MotorsOperating ParametersOverviewMaintain operating parameters within prescribed limits during all operating conditions. This sectiondefines operating limits given in the table Operating Parameters on page 7.Speed LimitsContinuous speed is the highest input speed recommended at full power condition. Operating at or belowthis speed should yield satisfactory product life. In a machine propel application, maximum motor speedduring unloaded, on - road travelling on level ground should not exceed this limit.Maximum speed is the highest operating speed permitted. Exceeding maximum speed reduces productlife and can cause loss of hydrostatic power and braking capacity. Never exceed the maximum speedlimit under any operating conditions.Consult Pressure and speed limits BLN-9884, when determining speed limits for a particular application.WWarningUnintended vehicle or machine movement hazard.Exceeding maximum speed may cause a loss of hydrostatic drive line power and braking capacity. Youmust provide a braking system, redundant to the hydrostatic transmission, sufficient to stop and hold thevehicle or machine in the event of hydrostatic drive power loss.System PressureSystem pressure is the differential pressure between high pressure system ports. It is the dominantoperating variable affecting hydraulic unit life. High system pressure, which results from high load,reduces expected life. Hydraulic unit life depends on the speed and normal operating, or weightedaverage, pressure that can only be determined from a duty cycle analysis.Application pressure is the high pressure relief or pressure limiter setting normally defined within theorder code of the pump. This is the applied system pressure at which the drive-line generates themaximum calculated pull or torque in the application.Maximum working pressure is the highest recommended Application pressure. Maximum workingpressure is not intended to be a continuous pressure. Propel systems with application pressures at, orbelow, this pressure should yield satisfactory unit life given proper component sizing.Maximum pressure is the highest allowable Application pressure under any circumstance. Applicationpressures above maximum working Pressure will only be considered with duty cycle analysis and factoryapproval.Pressure spikes are normal and must be considered when reviewing maximum working pressure.Minimum low loop pressure must be maintained under all operating conditions to avoid cavitation.All pressure limits are differential pressures referenced to low loop (charge) pressure. Subtract low looppressure from gauge readings to compute the differential.Servo PressureServo pressure is the pressure in the Servo-system needed to position and hold the pump on stroke. Itdepends on system pressure and speed.At minimum servo pressure the pump will run at reduced stroke depending on speed and pressure.Minimum servo pressure at corner power holds the pump on full stroke at max speed and max pressure.Maximum servo pressure is the highest pressure typically given by the charge pressure setting.Case PressureUnder normal operating conditions, the rated case pressure must not be exceeded. During cold startcase pressure must be kept below maximum intermittent case pressure. Size drain plumbing accordingly.WWarningPossible component damage or leakage520L0604 Rev FB March 20149

Technical InformationSeries 90 Axial Piston MotorsOperating ParametersOperation with case pressure in excess of stated limits may damage seals, gaskets, and/or housings,causing external leakage. Performance may also be affected since charge and system pressure areadditive to case pressure.Hydraulic FluidsRatings and data are based on operating with hydraulic fluids containing oxidation, rust and foaminhibitors. These fluids must possess good thermal and hydrolytic stability to prevent wear, erosion, andcorrosion of pump components. Never mix hydraulic fluids of different types.Fire resistant fluids are also suitable at modified operating conditions. Please see Danfoss publication520L0463 for more information. Refer to publication 520L0465 for information relating tobiodegradable fluids.Suitable Hydraulic fluids: Hydraulic fluids per DIN 51 524, 2-HLP,Hydraulic fluids per DIN 51 524, 3-HVLP,API CD, CE and CF engine fluids per SAE J183,M2C33F or G automatic transmission fluids (ATF),Dexron II (ATF), which meets the Allison C3- and Caterpillar TO-2 test,Agricultural multi purpose oil (STOU),Premium turbine oils.Temperature and ViscosityTemperature and viscosity requirements must be concurrently satisfied. The data shown in the table FluidSpecifications on page 8, assume petroleum-based fluids are used.The high temperature limits apply at the hottest point in the transmission, which is normally the motorcase drain. The system should generally be run at or below the rated temperature. The maximumtemperature is based on material properties and should never be exceeded.Cold oil will generally not affect the durability of the transmission components, but it may affect theability of oil to flow and transmit power; therefore temperatures should remain 16 C [30 F] above thepour point of the hydraulic fluid. The minimum temperature relates to the physical properties ofcomponent materials.For maximum unit efficiency and bearing life the fluid viscosity should remain in the recommendedoperating range. The minimum viscosity should be encountered only during brief occasions ofmaximum ambient temperature and severe duty cycle operation. The maximum viscosity should beencountered only at cold start.Heat exchangers should be sized to keep the fluid within these limits. Testing to verify that thesetemperature limits are not exceeded is recommended.10520L0604 Rev FB March 2014

Technical InformationSeries 90 Axial Piston MotorsSystem Design ParametersFluid and FiltrationTo prevent premature wear, it is imperative that only clean fluid enter the hydrostatic transmissioncircuit. A filter capable of controlling the fluid cleanliness to ISO 4406 class 22/18/13 (SAE J1165) or betterunder normal operating conditions is recommended.The filter may be located either on the inlet (suction filtration) or discharge (charge pressure filtration)side of the charge pump. The selection of a filter depends on a number of factors including thecontaminant ingression rate, the generation of contaminants in the system, the required fluid cleanliness,and the desired maintenance interval. Filters are selected to meet the above requirements using ratingparameters of efficiency and capacity.Filter efficiency may be measured with a Beta ratio (βX).Filter βx-ratio is a measure of filter efficiency defined by ISO 4572. It is defined as the ratio of the numberof particles greater than a given di

Series 90 Family of Pumps and Motors Series 90 hydrostatic pumps and motors can be applied together or combined with other products in a system to transfer and control hydraulic power. They are intended for closed circuit applications. Series 90 variable displacement pumps are

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