RE 91 510 - Bosch Rexroth

Electric Drivesand ControlsHydraulicsLinear Motion andAssembly TechnologiesPneumaticsServiceAxial Piston Fixed PumpA17FNORE 91510/03.10 1/12Data sheetSeries 10Size 125Nominal pressure 250 barMaximum pressure 300 barFor commercial vehicles, open circuitContentsOrdering code for standard program 2Technical data 3Direction of rotation and changing the direction of rotation 6Dimensions size 125 8Installation instructions 10General instructions 12Features––Fixed pump with axial tapered piston rotary group of bentaxis design with special characteristics and dimensions foruse in commercial vehicles.––The flow is proportional to the drive speed and displacement.––Large-angle machine with 40° swivel angle, i.e. high powerdensity, compact dimensions, optimum efficiency, economicaldesign––Simple change of direction––Self-priming––No case drain line necessary––Flange and shaft designed for direct mounting on the powertake-off of commercial vehicles––Reduced noise––Other pumps with special characteristics and dimensionsfor use in commercial vehicles can be found in the followingdata sheets:- RE 91520: Fixed pump A17FO, 300/350 bar- RE 91540: 2-circuit fixed pump A18FDO, 350/400 bar- RE 92260: Variable pump A17VO, 300/350 bar- RE 92270: Variable pump A18VO, 350/400 bar- RE 92280: Variable pump A18VLO, 350/400 bar

2/12 Bosch Rexroth AG A17FNO Series 10 | RE 91510/03.10Ordering code for standard programA17FN O 125 / 10 M L W K0 E8 1 –01 02 03 04 05 06 07 08 9 10 11Axial piston unit01 Bent axis design, fixed, nominal pressure 250 bar, maximum pressure 300 bar, for commercial vehicles (truck) A17FNOperation mode02 Pump, open circuit OSize (NG)03 Theoretical displacement see table of values on page 5 125Series04 Series 1, index 0 10Version of port and fixing threads05 Metric MDirection of rotation 1)06 Viewed from drive shaft, counter-clockwise LSeals07 FKM (fluor-caoutchouc) including the 2 shaft seal rings in FKM WMounting flange08 Special flange ISO 7653-1985 (for trucks) K0Drive shaft09 Splined shaft similar to DIN ISO 14 (for trucks) E8Service line ports10 Threaded port A and S at rear 111Standard / special versionStandard version 0Special versionNoteShort designation X refers to a special version not covered by the ordering code.S1)Changing the direction of rotation, see page 6

RE 91510/03.10 | A17FNO Series 10 Bosch Rexroth AG 3/12Technical dataHydraulic fluidBefore starting project planning, please refer to our datasheets RE 90220 (mineral oil) and RE 90221 (environmentallyacceptable hydraulic fluids) for detailed information regardingthe choice of hydraulic fluid and application conditions.If environmentally acceptable hydraulic fluids are being used,the limitations regarding technical data and seals mentioned inRE 90221 must be observed.When ordering, indicate the hydraulic fluid that is to be used.NoteThe fixed pump A17FNO is not suitable for operation withwater-containing HF hydraulic fluid.Selection diagramViscosity ν [mm 2 /s]-40°1600 -20° 0° 20° 40° 60° 80° 100°1600100060040020010060402010VG 22VG 32VG 46VG 68VG 10055-40° -25° -10° 0° 10° 30° 50° 70° 90° 115°Temperature t [°C]t min = -40 °C Hydraulic fluid temperature range t max = +115 °C3616 optDetails regarding the choice of hydraulic fluidThe correct choice of hydraulic fluid requires knowledge of theoperating temperature in relation to the ambient temperature: inan open circuit the tank temperature.The hydraulic fluid should be chosen so that the operating viscosityin the operating temperature range is within the optimumrange (ν opt ), see shaded area of the selection diagram. Werecommended that the higher viscosity class be selected ineach case.Example: At an ambient temperature of X °C, an operating temperatureof 60 °C is set in the circuit. In the optimum operatingviscosity range (ν opt. shaded area), this corresponds to theviscosity classes VG 46 or VG 68; to be selected: VG 68.NoteThe case drain temperature, which is affected by pressure andspeed, is always higher than the tank temperature. At no pointof the component may the temperature be higher than 115 °C,however. The temperature difference specified below is to betaken into account when determining the viscosity in the bearing.If the above conditions cannot be maintained due to extremeoperating parameters, please contact us.Filtration of the hydraulic fluidFiltration improves the cleanliness level of the hydraulic fluid,which, in turn, increases the service life of the axial piston unit.To ensure the functional reliability of the axial piston unit, agravimetric evaluation is necessary for the hydraulic fluid todetermine the amount of contamination by solid matter andto determine the cleanliness level according to ISO 4406. Acleanliness level of at least 20/18/15 is to be maintained.At very high hydraulic fluid temperatures (90 °C to maximum115 °C), a cleanliness level of at least 19/17/14 according toISO 4406 is necessary.If the above classes cannot be achieved, please contact us.Viscosity and temperatureViscosity [mm 2 /s] Temperature CommentTransport and storage T min ≥ -50 °CT opt = +5 °C to +20 °Cup to 12 months with standard factory preservationup to 24 months with long-term factory preservation(Cold) start-up n max = 1600 T St ≥ -40 °C t ≤ 3 min, without load (p ≤ 50 bar), n ≤ 1000 rpmPermissible temperatureDT ≤ 25 Kbetween axial piston unit and hydraulic fluiddifferenceWarm-up phase n < 1600 to 400 T = -40 °C to -25 °C at p nom , 0.5 • n nom and t ≤ 15 minOperating phaseTemperature difference DT = approx. 12 K The temperature of the hydraulic fluid in the bearingis (depending on pressure and speed) approx. 12 Khigher than that of the case drain fluid at port R.Continuous operation n = 400 to 10 T = -25 °C to +90 °C no restriction within the permissible datan opt = 16 to 36Short-term operation n min = < 10 to 5 T max = +115 °C t < 3 min, p < 0.3 • p nomShaft seal ring FKM T ≤ +115 °C see page 4

4/12 Bosch Rexroth AG A17FNO Series 10 | RE 91510/03.10Technical dataOperating pressure rangePressure at service line port ANominal pressure p nom _________________ 250 bar absoluteMaximum pressure p max _ _______________ 300 bar absoluteSingle operating period ______________________________ 5 sTotal operating period ______________________________ 50 hMinimum pressure (high-pressure side) ___________ 10 barRate of pressure change R A max _______________ 9000 bar/sPressure pp nomDpDtDefinitionNominal pressure p nomThe nominal pressure corresponds to the maximum designpressure.Maximum pressure p maxThe maximum pressure corresponds to the maximum operatingpressure within the single operating period. The sum of thesingle operating periods must not exceed the total operatingperiod.Minimum pressure (high-pressure side)Minimum pressure on the high-pressure side (A) that is requiredin order to prevent damage to the axial piston unit.Rate of pressure change R AMaximum permissible rate of pressure build-up and pressurereduction during a pressure change over the entire pressurerange.Time tPressure at suction port S (inlet)Minimum suction pressure p S min ___________ 0.8 bar absoluteMaximum suction pressure p S max ____________ 2 bar absoluteMinimum pressure (inlet)In order to avoid damage to the axial piston unit, a minimumpressure must be ensured at the suction port S (inlet). Theminimum pressure is dependent on the speed of the axialpiston unit.Pressure pSingle operating periodMaximum pressure p maxNominal pressure p nomt 1t 2t nMinimum pressure (high-pressure side)Time tTotal operating period = t 1 + t 2 + ... + t nCase drain fluidThe case drain chamber is connected to the suction chamber.A case drain line from the case to the tank is not required (port"R" is plugged)Shaft seal ringThe FKM shaft seal ring is permissible for case drain temperaturesfrom -25 °C to +115 °C.NoteFor the temperature range below -25 °C, the values in the tableon page 3 are to be observed.

RE 91510/03.10 | A17FNO Series 10 Bosch Rexroth AG 5/12Technical dataTable of values (theoretical values, without efficiencies and tolerances; values rounded)Size NG 125Displacement V g cm 3 125Speed maximum 1) at V g n nom rpm 1800Flow at n nom and V g q v max l/min 225Power at n nom , V g and Δp = 250 bar P max kW 94Torque at V g and Δp = 250 bar T Nm 497Mass moment T G Nm On requestRotary stiffness c Nm/rad 806Moment of inertia for rotary group J GR kgm 2 0.0016Maximum angular acceleration α rad/s² On requestFilling capacity V L On requestMass (approx.) m kg 14.51) The values shown are valid for an absolute pressure pabs= 1 bar at suction port "S" and for operation with mineral fluid witha specific mass of 0.88 kg/l.NoteOperation above the maximum values or below the minimum values may result in a loss of function, a reduced service life or in thedestruction of the axial piston unit. Other permissible limit values with respect to speed variation, reduced angular acceleration asa function of the frequency and the permissible startup angular acceleration (lower than the maximum angular acceleration) can befound in data sheet RE 90261.Determining the sizeFlow q v =V g • n • η v1000[l/min]V g = Displacement per revolution in cm 3Δp = Differential pressure in barTorque T =V g • Δ p20 • π • η mh[Nm]nη v= Speed in rpm= Volumetric efficiencyPower P =2 π • T • n=q v • Δp60000 600 • η t[kW]η mh = Mechanical-hydraulic efficiencyη t = Total efficiency (η t = η v • η mh )Permissible axial loading of the drive shaftThe values given are maximum values and do not apply to continuous operation. For drives with radial loading(pinion, V-belt drives), please contact us!Size NG 125When standstill or when axial piston unitoperation in non-pressurized conditionsPermissible axial forceper bar operating pressure+F axNoteForce-transfer direction of the permissible axial force+ F ax max = Increase in service life of bearings− F ax max = Reduction in service life of bearings (avoid)–± F ax max N 0+ F ax perN/bar 77− F ax per N/bar 0

6/12 Bosch Rexroth AG A17FNO Series 10 | RE 91510/03.10Direction of rotation and changing the direction of rotationThe direction of rotation of the axial piston unit is defined bymeans of a pressure connection screwed into the service lineport and can easily be changed.By changing the pressure connection, the service line port andthe suction port are exchanged. As a result, the permissibledrive direction is changed.Direction of rotation on deliveryOn delivery, the pressure connection (1) is pre-assembled inthe right service line port of the axial piston unit. The permissibledrive direction of the pump looking at the drive shaft:counter-clockwise. The power take-off turns clockwise.NoteThe pressure connection is pre-assembled on delivery andmust be tightened to the torque specified for the respectivethreaded size before installation (see table of tighteningtorques M D ).Changing the direction of rotationFor power take-offs with counter-clockwise rotation, the directionof rotation of the axial piston unit must be changed.To change the direction of rotation of the axial piston unit, youmust change the pressure connection (1) from the right port tothe left port.NoteIf the pump drive shaft moves while making the change, theaxial piston unit may be damaged.After unscrewing the pressure connection, do not turn thedrive shaft of the pump!211X2XView XDirection of rotationof pump2View XDirection of rotationof pump11 Pressure connection(in right port)2 Suction port S121 Pressure connection(in left port)2 Suction port STightening torque M D of the pressure connectionSize NG 125Tightening torque M D Nm 525Size WAF mm 50Connecting the line to the pressure connectionIf the tightening torque required for connecting the used fittingsexceeds the tightening torque of the pressure connection,the pressure connection must be counterheld. The maximumpermissible tightening torque of the threaded hole (see page12) must not be exceeded.

RE 91510/03.10 | A17FNO Series 10 Bosch Rexroth AG 7/12Notes

8/12 Bosch Rexroth AG A17FNO Series 10 | RE 91510/03.10Dimensions size 125Before finalizing your design, request a bindinginstallation drawing. Dimensions in mm.915272256238R1069680129G1 1/4G1-0.03ø80-0.06133138010573.540°43114129149120[waist dimension]XView XSA77129

RE 91510/03.10 | A17FNO Series 10 Bosch Rexroth AG 9/12Dimensions size 125Drive shaftE8 Splined shaft similar DIN ISO 148x32x35Before finalizing your design, request a bindinginstallation drawing. Dimensions in mm.1) 2)ø34.9 -0.1M12 x 1.75ø8.19.52836.8ø38.4ø42Groove forretaining ring35 x 1.5 DIN 47126.15512PortsDesignation Port for Standard Size 2) Maximum Statepressure [bar] 3)A Service line DIN ISO 228 G1; 18 deep 300 OS Suction DIN ISO 228 G1 1/4; 20 deep 2 OR Air bleed DIN 3852 5) M10 x 1; 8 deep 2 X 4)Center bore according to DIN 332 (thread according to DIN 13)Observe the general instructions on page 12 for the maximum tightening torques.Short-term pressure spikes may occur depending on the application. Keep this in mind when selecting measuring devices andfittings.Only open port R for filling and air bleed1)2)3)4)5)The spot face can be deeper than specified in the appropriate standard.O = Must be connected (plugged on delivery)X = Plugged (in normal operation)

10/12 Bosch Rexroth AG A17FNO Series 10 | RE 91510/03.10Installation instructionsGeneralDuring commissioning and operation, the axial piston unit mustbe filled with hydraulic fluid and air bled. This is also to be observedfollowing a relatively long standstill as the system mayempty via the hydraulic lines.The case drain chamber is internally connected to the suctionchamber. A case drain line from the case to the tank is notrequired.To achieve favorable noise values, decouple all connectinglines using elastic elements and avoid above-tank installation.In all operational states, the suction line must flow into the tankbelow the minimum fluid level. The permissible suction heighth S results from the overall loss of pressure, it must not, however,be higher than h S max = 800 mm. The minimum suctionpressure at port S must also not fall below 0.8 bar absoluteduring operation and during cold start.Installation positionSee the following examples 1 to 4.Additional installation positions are available upon request.Recommended installation position: 1 and 2.Below-tank installation (standard)Below-tank installation is when the axial piston unit is installedoutside of the tank below the minimum fluid level.1 2Rh t minh minh t minh minSAbove-tank installationAbove-tank installation is when the axial piston unit is installedabove the minimum fluid level of the tank.Observe the maximum permissible suction height h S max = 800 mm.3 4RInstallationpositionLSh S maxh t minh minAir bleedh S maxh t minh min3 R L4 S SLRSh t minh minh S maxSFillingFilling / air bleedAir bleed portSuction portMinimum permissible immersion depth (200 mm)Minimum permissible spacing from suction port totank base (100 mm)Maximum permissible suction height (800 mm)RSRInstallationpositionAir bleedFilling1 R S2 – S

RE 91510/03.10 | A17FNO Series 10 Bosch Rexroth AG 11/12Notes

12/12 Bosch Rexroth AG A17FNO Series 10 | RE 91510/03.10General instructions––The A17FNO pump is designed to be used in open circuits.––Project planning, assembly and commissioning of the axial piston unit require the involvement of qualified personnel.––Before using the axial piston unit, please read the corresponding operating instructions completely and thoroughly. If necessary,these can be requested from Rexroth.––The service line ports and function ports are only designed to accommodate hydraulic lines.––During and shortly after operation, there is a risk of burns on the axial piston unit. Take appropriate safety measures(e.g. by wearing protective clothing).––Depending on the operational state of the axial piston unit (operating pressure, fluid temperature), the characteristic may shift.––Pressure ports:The ports and fixing threads are designed for the specified maximum pressure. The machine or system manufacturer mustensure that the connecting elements and lines correspond to the specified application conditions (pressure, flow, hydraulic fluid,temperature) with the necessary safety factors.––The data and notes contained herein must be adhered to.––The following tightening torques apply:--Threaded hole of the axial piston unit:The maximum permissible tightening torques M G max are maximum values of the threaded holes and must not be exceeded.For values, see the following table.--Fittings:Observe the manufacturer's instruction regarding the tightening torques of the used fittings.--Fixing screws:For fixing screws according to DIN 13, we recommend checking the tightening torque individually according to VDI 2230.--Locking screws:For the metallic locking screws supplied with the axial piston unit, the required tightening torques of locking screws M V apply.For values, see the following table.––The product is not approved as a component for the safety concept of a general machine according to DIN EN ISO 13849.PortsMaximum permissibletightening torque of theRequired tightening torqueof the locking screws M VWAF hexagon socket ofthe locking screwsStandard Threaded size threaded holes M G maxDIN 3852 M10 x 1 13 Nm 12 Nm 5 mmDIN ISO 228 G1/2 200 Nm − −G3/4 330 Nm − −G1 480 Nm − −G1 1/4 720 Nm − −Accessories for A17FNOThe following accessories are available from Rexroth for the A17FNO:––Coupling flange, for pumps driven via a cardan shaft (see RE 95001)––Suction studs, in all variations (see RE 95004)Bosch Rexroth AGHydraulicsAxial piston unitsGlockeraustraße 289275 Elchingen, GermanyPhone +49 (0) 73 08 82-0Fax +49 (0) 73 08 72 74info.brm-ak@boschrexroth.dewww.boschrexroth.com/axial-piston-pumps© This document, as well as the data, specifications and other information setforth in it, are the exclusive property of Bosch Rexroth AG. It may not be reproducedor given to third parties without its consent.The data specified above only serve to describe the product. ‌No statementsconcerning a certain condition or suitability for a certain application can be derivedfrom our information. The information given does not release the user fromthe obligation of own judgment and verification. It must be remembered that ourproducts are subject to a natural process of wear and aging.Subject to change.