Electric Drives and Controls Hydraulics Linear Motion and Assembly Technologies Pneumatics ervice Axial piston fixed pump AA2FO RA-A 91401/07.2014 1/32 Replaces: 03.08 Data sheet eries 6 izes Nominal pressure/maximum pressure 10 to 180 5800/6500 psi (400/450 bar) 250 5100/5800 psi (350/400 bar) Open circuits Contents Ordering code for standard program 2 Technical data 5 Dimensions sizes 10, 12, 16 12 Dimensions sizes 23, 28, 32 14 Dimensions size 45 16 Dimensions sizes 56, 63 18 Dimensions sizes 80, 90 20 Dimensions sizes 107, 125 22 Dimensions sizes 160, 180 24 Dimensions size 250 26 Installation instructions 28 General instructions 29 Features Fixed pump with axial tapered piston rotary group of bent-axis design, for hydrostatic drives in an open circuit For use in mobile and stationary applications The flow is proportional to the drive speed and displacement The drive shaft bearings are designed for the bearing service life requirements usually encountered in these areas High power density mall dimensions High total efficiency Economical design One-piece tapered piston with piston rings for sealing
2/32 Bosch Rexroth Corp. AA2FO RA-A 91401/07.2014 Ordering code for standard program AA2F O / 6 V 01 02 03 04 05 06 07 08 09 10 11 12 13 01 Hydraulic fluid Mineral oil and HFD. HFD for sizes 250 only in combination with long-life bearing L (without code) HFB-, HFC hydraulic fluid sizes 10 to 180 (without code) sizes 250 (only in combination with long-life bearing L ) E- Axial piston unit 02 Bent axis design, fixed, AE Version AA2F 03 Drive shaft bearing 10 to 180 250 tandard bearing (without code) Long-life bearing L Operation mode 04 Pump, open circuit O 05 ize Geometric displacement, see table of values on page 7 size 10 12 16 23 28 32 45 56 in 3 /rev. 0.63 0.73 0.98 1.40 1.71 1.95 2.78 3.42 size 63 80 90 107 125 160 180 250 in 3 /rev. 3.84 4.91 5.49 6.51 7.63 9.79 10.98 15.25 eries 06 6 07 Index sizes 10 to 180 1 size 250 0 08 Direction of rotation Viewed on drive shaft clockwise R counter-clockwise L eals 09 FKM (fluor-caoutchouc) V 10 11 Drive shafts 10 12 16 23 28 32 45 56 63 80 90 107 125 160 180 250 plined shaft AE J744 T (ANI B92.1a) U Q Parallel keyed shaft B DIN 6885 P AE parallel keyed shaft K Mounting flange 10 12 16 23 28 32 45 56 63 80 90 107 125 160 180 250 AE J744 2-hole C D 4-hole DN = Available = Not available
RA-A 91401/07.2014 AA2FO Bosch Rexroth Corp. 3/32 Ordering code for standard program AA2F O / 6 V 01 02 03 04 05 06 07 08 09 10 11 12 13 12 Port plates for service lines 1) 10, 12, 16 23, 28, 32 45 56, 63 80, 90 107, 125 160, 180 250 AE flange ports A/B at side and AE flange port at rear Threaded ports A/B at side and AE flange port at rear 55 56 13 tandard / special version tandard version (without code) tandard version with installation variants, e. g. T ports against standard open or closed Y pecial version = Available = Not available 1) Fastening threads or threaded ports are AE (UN/UNF)
4/32 Bosch Rexroth Corp. AA2FO RA-A 91401/07.2014 Technical data Hydraulic fluid Before starting project planning, please refer to our data sheets RE 90220 (mineral oil), RE 90221 (environmentally acceptable hydraulic fluids), RE 90222 (HFD hydraulic fluids) and RE 90223 (HFA, HFB, HFC hydraulic fluids) for detailed information regarding the choice of hydraulic fluid and application conditions. The fixed pump AA2FO is not suitable for operation with HFA hydraulic fluid. If HFB, HFC or HFD or environmentally acceptable hydraulic fluids are used, the limitations regarding technical data or other seals must be observed. election diagram Viscosity ν U (mm2/s) 7000 5000 3000 2000 1000 500 300 200 150 100 80 70 60 50 (1600) (1000) (600) (400) (200) (100) (60) (40) (20) (10) (-40) (-20) (0) (20) (40) (60) (80) (100) VG 22 VG 32 VG 68 VG 46 VG 100 7400 (1600) 170 (36) νopt. 80 (16) Details regarding the choice of hydraulic fluid The correct choice of hydraulic fluid requires knowledge of the operating temperature in relation to the ambient temperature: in an open circuit, the reservoir temperature. The hydraulic fluid should be chosen so that the operating viscosity in the operating temperature range is within the optimum range (ν opt see shaded area of the selection diagram). We recommended that the higher viscosity class be selected in each case. Example: At an ambient temperature of X F (X C), an operating temperature of 140 F (60 C) is set in the circuit. In the optimum operating viscosity range (ν opt., shaded area), this corresponds to the viscosity classes VG 46 or VG 68; to be selected: VG 68. Note The case drain temperature, which is affected by pressure and speed, can be higher than the reservoir temperature. At no point of the component may the temperature be higher than 240 F (115 C). The temperature difference specified below is to be taken into account when determining the viscosity in the bearing. If the above conditions cannot be maintained due to extreme operating parameters, we recommend flushing the case at port U (size 250). 40 (5) 42 (5) (-40) (-25) (-10) (0) (10) (30) (50) (70) (90) (115) -40-13 0 20 40 60 80 120 160 195 240 t min = -40F (-40C) Fluid temperature range t in F (C) t max = +240F (+115C) Viscosity and temperature of hydraulic fluid Transport and storage at ambient temperature Viscosity [U (mm 2 /s)] Temperature T min T opt = -58 F (-50 C) +41 F to +68 F (+5 C to +20 C) Comment factory preservation: up to 12 months with standard, up to 24 months with long-term (Cold) start-up 1) n max = 7400 (1600) T t -40 F (-40 C) t 3 min, without load (p 725 psi (50 bar)), n 1000 rpm (for sizes 10 to 180), n 0.25 n nom (for sizes 250) Permissible temperature difference DT 45 F (25 C) between axial piston unit and hydraulic fluid Warm-up phase n < 7400 to 1850 (1600 to 400) Operating phase T = -40 F to -13 F (-40 C to -25 C) at p 0.7 p nom, n 0.5 n nom and t 15 min Temperature difference DT = approx. 22 F (12 C) between hydraulic fluid in the bearing and at port T. Maximum temperature +240 F (115 C) in the bearing +217 F (103 C) measured at port T Continuous operation n = 1850 to 47 (400 to 10) n opt = 170 to 74 (36 to 16) T = -13 F to +195 F (-25 C to +90 C) measured at port T, no restriction within the permissible data hort-term operation 2) n min 32 (7) T max = +217 F (+103 C) measured at port T, t < 3 min, p < 0.3 p nom FKM shaft seal 1) T +240 F (+115 C) see page 5 1) At temperatures below -13 F (-25 C), an NBR shaft seal is required (permissible temperature range: -40 F to +195 F (-40 C to +90 C)). 2) izes 250, please contact us.
RA-A 91401/07.2014 AA2FO Bosch Rexroth Corp. 5/32 Technical data Filtration of the hydraulic fluid Finer filtration improves the cleanliness level of the hydraulic fluid, which increases the service life of the axial piston unit. To ensure the functional reliability of the axial piston unit, a gravimetric analysis of the hydraulic fluid is necessary to determine the amount of solid contaminant and to determine the cleanliness level according to IO 4406. A cleanliness level of at least 20/18/15 is to be maintained. At very high hydraulic fluid temperatures (+195 F to +240 F (90 C to maximum 115 C)), a cleanliness level of at least 19/17/14 according to IO 4406 is necessary. If the above classes cannot be achieved, please contact us. haft seal Permissible pressure loading The service life of the shaft seal is influenced by the speed of the axial piston unit and the case drain pressure (case pressure). The mean differential pressure of 30 psi (2 bar) between the case and the ambient pressure may not be enduringly exceeded at normal operating temperature. For a higher differential pressure at reduced speed, see diagram. Momentary pressure spikes (t < 0.1 s) of up to 145 psi (10 bar) are permitted. The service life of the shaft seal decreases with an increase in the frequency of pressure spikes. The case pressure must be equal to or higher than the ambient pressure. Direction of flow Direction of rotation, viewed on drive shaft clockwise counter-clockwise to B to A Long-life bearing ize 250 For long service life and use with HF hydraulic fluids. Identical external dimensions as motor with standard bearings. ubsequent conversion to long-life bearings is possible. Bearing and case flushing via port U is recommended. Flushing flow (recommended) ize 250 q v flush gpm 2.6 L/min 10 Differential pressure p [psi (bar)] 75 (5) 60 (4) 45 (3) 30 (2) 15 (1) NG80, 90 NG107, 125 NG160, 180 0 0 1000 NG250 2000 3000 4000 5000 6000 7000 8000 peed n [rpm] The values are valid for an ambient pressure p abs = 15 psi (1 bar). Temperature range NG10, 12, 16 NG23, 28, 32 NG45 NG56, 63 The FKM shaft seal may be used for case drain temperatures from -13 F to +240 F (-25 C to +115 C). Note For application cases below -13 F (-25 C), an NBR shaft seal is required (permissible temperature range: -40 F to 195 F (-40 C to +90 C). tate NBR shaft seal in plain text when ordering. Please contact us.
6/32 Bosch Rexroth Corp. AA2FO RA-A 91401/07.2014 Technical data Operating pressure range (operating with mineral oil) Pressure at service line port A or B izes 10 to 180 Nominal pressure p nom 5800 psi (400 bar) absolute Maximum pressure p max 6500 psi (450 bar) absolute ingle operating period 10 s Total operating period 300 h izes 250 Nominal pressure p nom 5100 psi (350 bar) absolute Maximum pressure p max 5800 psi (400 bar) absolute ingle operating period 10 s Total operating period 300 h Minimum pressure (high-pressure side) 365 psi (25 bar) absolute Rate of pressure change R A max without pressure-relief valve 232000 psi/s (16000 bar/s) Definition Nominal pressure p nom The nominal pressure corresponds to the maximum design pressure. Maximum pressure p max The maximum pressure corresponds to the maximum operating pressure within the single operating period. The sum of the single operating periods must not exceed the total operating period. Minimum pressure (high-pressure side) Minimum pressure at the high-pressure side (A or B) which is required in order to prevent damage to the axial piston unit. Minimum pressure (inlet) Minimum pressure at suction port (inlet) which is required in order to prevent damage to the axial piston unit. The minimum pressure is dependent on the speed of the axial piston unit. Rate of pressure change R A Maximum permissible rate of pressure rise and reduction during a pressure change over the entire pressure range. p nom Dt ingle operating period Maximum pressure p max Nominal pressure p nom t 1 t 2 t n Pressure p Dp Pressure p Time t Pressure at suction port (inlet) Minimum pressure p min 12 psi (0.8 bar) absolute Maximum pressure p max 435 psi (30 bar) absolute Note Operation above the maximum values or below the minimum values may result in a loss of function, a reduced service life or in the destruction of the axial piston unit. Other permissible limit values, with respect to speed variation, reduced angular acceleration as a function of the frequency and the permissible start up angular acceleration (lower than the maximum angular acceleration) can be found in data sheet RE 90261. Minimum pressure (high-pressure side) Time t Total operating period = t 1 + t 2 +... + t n Note Values for other hydraulic fluids, please contact us. Maximum speed (limiting speed) Inlet pressure pabs [psi (bar)] 60 (4) 45 (3) 30 (2) 15 (1) 0 0.8 1.0 1.2 NG250 1.4 1.6 NG10 to 180 1.8 2.0 peed n / n nom
RA-A 91401/07.2014 AA2FO Bosch Rexroth Corp. 7/32 Technical data Table of values (theoretical values, without efficiency and tolerances; values rounded) ize NG 10 12 16 23 28 32 45 56 Displacement geometric, V g in 3 0.63 0.73 0.98 1.40 1.71 1.95 2.78 3.42 per revolution cm 3 10.3 12 16 22.9 28.1 32 45.6 56.1 peed maximum 1) n nom rpm 3150 3150 3150 2500 2500 2500 2240 2000 n 2) max rpm 6000 6000 6000 4750 4750 4750 4250 3750 Flow at n nom q V gpm 8.6 10.0 13.2 15.1 18.5 21.1 27.0 29.6 L/min 32 38 50 57 70 80 102 112 Power at Δp = 5100 psi P HP 25 30 39 44 55 63 80 88 Δp = 350 bar P kw 19 22 29 33 41 47 60 65 Δp = 5800 psi P HP 30 34 45 51 63 71 91 100 Δp = 400 bar P kw 22 25 34 38 47 53 68 75 Torque 3) Δp = 5100 psi T lb-ft 42 50 65 94 116 132 189 232 at V g and Δp = 350 bar T Nm 57 67 89 128 157 178 254 313 Δp = 5800 psi T lb-ft 48 56 75 107 131 150 214 263 Δp = 400 bar T Nm 66 76 102 146 179 204 290 357 Rotary stiffness c knm/rad 0.92 1.25 1.59 2.56 2.93 3.12 4.18 5.94 Moment of inertia J GR lbs-ft 2 0.0095 0.0095 0.0095 0.0285 0.0285 0.0285 0.0569 0.0997 for rotary group kgm 2 0.0004 0.0004 0.0004 0.0012 0.0012 0.0012 0.0024 0.0042 Maximum angular acceleration a rad/s 2 5000 5000 5000 6500 6500 6500 14600 7500 Case volume V gal 0.045 0.045 0.045 0.053 0.053 0.053 0.087 0.119 L 0.17 0.17 0.17 0.20 0.20 0.20 0.33 0.45 Mass (approx.) m lbs 12 12 12 21 21 21 30 40 kg 6 6 6 9.5 9.5 9.5 13.5 18 ize NG 63 80 90 107 125 160 180 250 Displacement geometric, V g in 3 3.84 4.91 5.49 6.51 7.63 9.79 10.98 15.25 per revolution cm 3 63 80.4 90 106.7 125 160.4 180 250 peed maximum 1) n nom rpm 2000 1800 1800 1600 1600 1450 1450 1500 n 2) max rpm 3750 3350 3350 3000 3000 2650 2650 1800 Flow at n nom q V gpm 33.3 38.0 42.8 44.9 52.8 61.2 69.0 99.1 L/min 126 145 162 171 200 233 261 375 Power at Δp = 5100 psi P HP 99 113 127 134 157 183 205 295 Δp = 350 bar P kw 74 84 95 100 117 136 152 219 Δp = 5800 psi P HP 113 129 145 153 179 208 233 Δp = 400 bar P kw 84 96 108 114 133 155 174 Torque 3) Δp = 5100 psi T lb-ft 260 331 372 442 517 664 746 1036 at V g and Δp = 350 bar T Nm 351 448 501 594 696 893 1003 1393 Δp = 5800 psi T lb-ft 295 377 422 500 586 752 845 Δp = 400 bar T Nm 401 512 573 679 796 1021 1146 Rotary stiffness c knm/rad 6.25 8.73 9.14 11.2 11.9 17.4 18.2 73.1 Moment of inertia J GR lbs-ft 2 0.0997 0.1708 0.1708 0.2753 0.2753 0.5221 0.5221 1.4475 for rotary group kgm 2 0.0042 0.0072 0.0072 0.0116 0.0116 0.0220 0.0220 0.061 Maximum angular acceleration a rad/s 2 7500 6000 6000 4500 4500 3500 3500 10000 Case volume V gal 0.119 0.145 0.145 0.211 0.211 0.291 0.291 0.660 L 0.45 0.55 0.55 0.8 0.8 1.1 1.1 2.5 Mass (approx.) m lbs 40 51 51 71 71 99 99 161 kg 18 23 23 32 32 45 45 73 1) The values are valid: - at an absolute pressure p abs = 1 bar at suction port - for the optimum viscosity range from n opt = 170 to 74 U (16 to 36 mm 2 /s) - with hydraulic fluid based on mineral oils 2) Maximum speed (limiting speed) with increased inlet pressure p abs at suction port, see maximum speed on page 6. 3) Torque without radial force, with radial force see page 8.
8/32 Bosch Rexroth Corp. AA2FO RA-A 91401/07.2014 Technical data Determining the operating characteristics Flow q v = V g n η v gpm q v = V g n η v L/min 231 1000 Torque T = V g Δp lb-ft T = 24 π η mh V g Δp Nm 20 π η mh 2 π T n q v Δp 2 π T n q v Δp Power P = = HP P = = kw 33 000 1714 η t 60 000 600 η t V g = Displacement per revolution in in 3 (cm 3 ) Δp = Differential pressure in psi (bar) n = peed in rpm η v = Volumetric efficiency η mh = Mechanical-hydraulic efficiency η t = Total efficiency (η t = η v η mh ) ( ( ( ) ) ) Effect of radial force F q on the service life of bearings By selecting a suitable direction of radial force F q, the load on the bearings, caused by the internal rotary group forces can be reduced, thus optimizing the service life of the bearings. Recommended position of mating gear is dependent on direction of rotation. Examples: Toothed gear drive NG ϕ opt ϕ opt 10 to 180 ± 70 ± 45 250 ± 45 ± 70 V-belt output Alternating direction of rotation ϕopt ϕopt ϕopt ϕopt "Clockwise" direction of rotation Counter-clockwise direction of rotation "Clockwise" direction of rotation Pressure at port B Pressure at port A Pressure at port B
RA-A 91401/07.2014 AA2FO Bosch Rexroth Corp. 9/32 Technical data Permissible radial and axial forces of the drive shafts (splined shaft and parallel keyed shaft) ize NG 10 10 10 12 12 12 16 3) 16 Drive shaft ø in 7/8 0.79 0.98 7/8 0.79 0.98 7/8 0.98 mm 20 25 20 25 25 Maximum F q F q max lbf 629.5 674.4 719.4 741.9 674.4 719.4 966.7 719.4 radial force 1) kn 2.8 3.0 3.2 3.3 3.0 3.2 4.3 3.2 at distance a (from shaft a a in 0.63 0.63 0.63 0.63 0.63 0.63 0.63 0.63 collar) mm 16.8 16 16 16.8 16 16 16.8 16 with permissible torque T max lb-ft 49 49 49 56.1 56.1 56.9 74.8 74.8 Nm 66 66 66 76 76 76 102 102 permissible pressure Δp Δp perm psi 5800 5800 5800 5800 5800 5800 5550 5800 bar 400 400 400 400 400 400 385 400 Maximum axial force 2) + +F ax max N 0 0 0 0 0 0 0 0 F ax F ax max lbf 71.9 71.9 71.9 71.9 71.9 71.9 71.9 71.9 N 320 320 320 320 320 320 320 320 Permissible axial force per ±F ax perm /p lbf/psi 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 psi (bar) operating pressure N/bar 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 ize NG 23 23 23 28 28 28 32 32 Drive shaft ø in 1 1/4 0.98 1.18 1 1/4 0.98 1.18 1 1/4 1.18 mm 25 30 25 30 30 Maximum F q F q max lbf 809.3 1281.4 1213.9 989.1 1281.4 1213.9 1146.5 1213.9 radial force 1) kn 3.6 5.7 5.4 4.4 5.7 5.4 5.1 5.4 at distance a (from shaft a a in 0.94 0.63 0.63 0.94 0.63 0.63 0.94 0.63 collar) mm 24 16 16 24 16 16 24 16 with permissible torque T max lb-ft 108 108 108 132 132 132 150.5 150.5 Nm 146 146 146 179 179 179 204 204 permissible pressure Δp Δp perm psi 5800 5800 5800 5800 5800 5800 5800 5800 bar 400 400 400 400 400 400 400 400 Maximum axial force 2) + +F ax max N 0 0 0 0 0 0 0 0 F ax F ax max lbf 112.2 112.2 112.2 112.2 112.2 112.2 112.2 112.2 N 500 500 500 500 500 500 500 500 Permissible axial force per ±F ax perm /p lbf/psi 0.08 0.08 0.08 0.08 0.08 0.08 0.08 0.08 psi (bar) operating pressure N/bar 5.2 5.2 5.2 5.2 5.2 5.2 5.2 5.2 1) With intermittent operation 2) Maximum permissible axial force during standstill or when the axial piston unit is operating in non-pressurized condition. 3) Restricted technical data Note Influence of the 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)
10/32 Bosch Rexroth Corp. AA2FO RA-A 91401/07.2014 Technical data ize NG 45 45 56 3) 56 56 56 63 3) 63 63 Drive shaft ø in 1 1/4 1.18 1 1/4 1 3/8 1.18 1.37 1 1/4 1 3/8 1.38 mm 30 30 35 35 Maximum F q F q max lbf 1641 1709 1709 2068 2136 2045 1708 2315 2046 radial force 1) kn 7.3 7.6 7.6 9.2 9.5 9.1 7.6 10.3 9.1 at distance a (from shaft a a in 0.94 0.71 0.94 0.94 0.71 0.71 0.94 0.94 0.71 collar) mm 24 18 24 24 18 18 24 24 18 with permissible torque T max lb-ft 214 214 223 263 263 263 223 295 295 Nm 290 290 302 357 357 357 302 401 401 permissible pressure Δp Δp perm psi 5800 5800 4950 5800 5800 5800 4350 5800 5800 bar 400 400 339 400 400 400 301 400 400 Maximum axial force 2) + +F ax max N 0 0 0 0 0 0 0 0 0 F ax F ax max lbf 142 142 180 180 180 180 180 180 180 N 630 630 800 800 800 800 800 800 800 Permissible axial force per ±F ax perm /p lbf/psi 0.11 0.11 0.13 0.13 0.13 0.13 0.13 0.13 0.13 psi (bar) operating pressure N/bar 7.0 7.0 8.7 8.7 8.7 8.7 8.7 8.7 8.7 ize NG 80 3) 80 3) 80 80 90 3) 90 3) 90 107 3) 107 Drive shaft ø in 1 1/4 1 3/8 1.37 1.57 1 1/4 1 3/8 1.57 1 1/2 1 3/4 mm 35 40 40 Maximum F q F q max lbf 1709 2608 2608 2563 1709 2608 2563 2788 2743 radial force 1) kn 7.6 11.6 11.6 11.4 7.6 11.6 11.4 12.4 12.2 at distance a (from shaft a a in 0.94 0.94 0.79 0,79 0.94 0.94 0.79 1.06 1.32 collar) mm 24 24 20 20 24 24 20 27 33.5 with permissible torque T max lb-ft 223 332 378 378 223 332 423 438 501 Nm 302 450 512 512 302 450 573 594 679 permissible pressure Δp Δp perm psi 3450 5100 5800 5800 3050 4550 5800 5100 5800 bar 237 352 400 400 211 314 400 349 400 Maximum axial force 2) + +F ax max N 0 0 0 0 0 0 0 0 0 F ax F ax max lbf 225 225 225 225 225 225 225 281 281 N 1000 1000 1000 1000 1000 1000 1000 1250 1250 Permissible axial force per ±F ax perm /p lbf/psi 0.16 0.16 0.16 0.16 0.16 0.16 0.16 0.20 0.20 psi (bar) operating pressure N/bar 10.6 10.6 10.6 10.6 10.6 10.6 10.6 12.9 12.9 1) With intermittent operation 2) Maximum permissible axial force during standstill or when the axial piston unit is operating in non-pressurized condition. 3) Restricted technical data Note Influence of the 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)
RA-A 91401/07.2014 AA2FO Bosch Rexroth Corp. 11/32 Technical data ize NG 107 107 125 3) 125 125 160 3) 160 160 180 3) 180 250 Drive shaft ø in 1.57 1.77 1 1/2 1 3/4 1.77 1 3/4 1.77 1.97 1 3/4 1.97 1.97 mm 40 45 45 45 50 50 50 Maximum F q F q max lbf 3057 3169 2788 3215 3170 3350 4069 4114 3350 4114 270 5) radial force 1) kn 13.6 14.1 12.4 14.3 14.1 14.9 18.1 18.3 14.9 18.3 1.2 5) at distance a (from shaft a a in 0.79 0.79 1.06 1.32 0.79 1.32 0.98 0.98 1.32 0.98 1.61 collar) mm 20 20 27 33.5 20 33.5 25 25 33.5 25 41 with permissible torque T max lb-ft 501 501 438 587 587 611 753 753 611 844 4) Nm 679 679 594 796 796 828 1021 1021 828 1146 permissible pressure Δp Δp perm psi 5800 5800 4350 5800 5800 4700 5800 5800 4200 5800 4) bar 400 400 298 400 400 325 400 400 289 400 Maximum axial force 2) + +F ax max N 0 0 0 0 0 0 0 0 0 0 0 F ax F ax max lbf 281 281 281 281 281 360 360 360 360 360 450 N 1250 1250 1250 1250 1250 1600 1600 1600 1600 1600 2000 Permissible axial force per psi (bar) operating pressure ±F ax perm /p lbf/psi 0.20 0.20 0.20 0.20 0.20 0.26 0.26 0.26 0.26 0.26 4) N/bar 12.9 12.9 12.9 12.9 12.9 16.7 16.7 16.7 16.7 16.7 1) With intermittent operation 2) Maximum permissible axial force during standstill or when the axial piston unit is operating in non-pressurized condition. 3) Restricted technical data 4) Please contact us. 5) When at a standstill or when axial piston unit operating in non-pressurized conditions. Higher forces are permissible when under pressure, please contact us. Note Influence of the 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)
12/32 Bosch Rexroth Corp. AA2FO RA-A 91401/07.2014 Dimensions sizes 10, 12, 16 AE design Clockwise rotation Counter-clockwise rotation: port plate is rotated through 180 4.25 (108) 0.47 (12) 6.85 (174) 5.75 (146) DIA 4.0000 DIA 3.9980 (DIA 101.6-0.05) 0.38 (9.7) 1.42 (36) R 2.83 (72) 40 T 2 5.63 (143) T 1 1.14 (29) 2.20 (56) 2.72 (69) Y 3.70 (94) Detail Y 0.56 (14.3) 4.76 (121) 6.26 (159) 7.09 (180) 1.67 (42.5) 0.5 (14) Flange AE J744 101-2 (B) B(A)
RA-A 91401/07.2014 AA2FO Bosch Rexroth Corp. 13/32 haft ends plined shaft AE J744 7/8 in 13 T 16/32 DP 1) B Parallel keyed shaft, DIN 6885, A8x7x32 mm) 2.76 (70) 5/16-18UNC-2B 2)4) 0.24 (6) 1.32 (33.5) 0.75 (19) 1.00 (25.5) 1.63 (41.4) DIA 1.10 (DIA 28) 2.76 (70) DIA 0.9848 DIA 0.9843 1.10 (28) (DIA 25 +0.015 +0.002 ) M10x1.5 3)4) 1.57 (40) 0.87 (22) Key width 0.30 0.31(8) (7.5) 1.89 (47.9) DIA 1.10 (DIA 28) P Parallel keyed shaft DIN 6885, A8x7x50 (mm) (not for size16) 2.76 (70) DIA 0.788 DIA 0.787 0.89 (22.5) (DIA 20 +0.015 +0.002 ) M6x1 3)4) 1.57 (40) 0.63 (16) Key width 0.20 0.31(8) (5) 1.89 (47.9) DIA 1.10 (DIA 28) Ports Designation Port for tandard 6) ize 4) p max [psi (bar)] 5) tate 8) B (A) ervice line IO 11926 1 1/16 in -12UN-2B; 0.79 (20) deep 265 lb-ft (360 Nm) 4) O uction IO 11926 1 5/16 in -12UN-2B; 0.79 (20) deep 400 lb-ft (540 Nm) 4) O T 1 Drain line IO 11926 9/16 in -18UNF-2B; 0.51 (13) deep 60 lb-ft (80 Nm) 4) O 7) T 2 Drain line IO 11926 9/16 in -18UNF-2B; 0.51 (13) deep 60 lb-ft (80 Nm) 4) X 7) R Air bleed IO 11926 5/16 in -24UNF-2B; 0.39 (10) deep 7 lb-ft (10 Nm) 4) X 7) 1) ANI B92.1a, 30 pressure angle, flat root, side fit, tolerance class 5 2) Thread according to AME B1.1 3) Center bore according to DIN 332 (thread according to DIN 13) 4) Observe the general instructions on page 30 for the maximum tightening torques. 5) Momentary pressure spikes may occur depending on the application. Keep this in mind when selecting measuring devices and fittings. 6) The spot face can be deeper than specified in the appropriate standard. 7) Depending on installation position, T 1 or T 2 must be connected (see also installation instructions on page 28) 8) O = Must be connected (plugged on delivery) X = Plugged (in normal operation)
14/32 Bosch Rexroth Corp. AA2FO RA-A 91401/07.2014 Dimensions sizes 23, 28, 32 AE design Clockwise rotation Counter-clockwise rotation: port plate is rotated through 180 4.92 (125) 0.79 (20) 45 5.75 (146) 45 T 1 DIA 5.0000 DIA 4.9980 (DIA 127-0.05) 0.50 (12.7) 40 Flange AE J744 127-4 (C) 1.22 R T 2 (31) 2.32 (59) 6.34 (161) 7.32 (186) 8.27 (210) 1.59 (40.5) 0.51 (13) 0.72 (18.2) B(A) 1.06 (27) 2.76 (70) 3.58 (91) Y 4.72 (120) DIA 6.38 (DIA 162) 2.36 (60) Detail Y 1.87 (47.6) 0.55 (14) 0.75 (19) 0.56 (14.3) 0.87 (22.2) 4.17 (106) 5.75 (146)
RA-A 91401/07.2014 AA2FO Bosch Rexroth Corp. 15/32 haft ends plined shaft AE J744 1 1/4 in 14T 12/24 DP 1) B Parallel keyed shaft DIN 6885, A8x7x40 (mm) P Parallel keyed shaft DIN 6885, A8x7x50 (mm) (not for size 32) 3.15 (80) 7/16-14UNC-2B 2)4) 0.37 (9.5) 1.89 (48) 1.10 (28) 1.57 (40) 2.20 (55.9) DIA 1.38 (DIA 35) 3.15 (80) DIA 1.182 DIA 1.181 1.30 (33) (DIA 30 +0.015 +0.002 ) M10x1.5 3)4) 1.97 (50) 0.87 (22) Key width 0.30 0.31 (8) (7.5) 2.28 (57.9) DIA 1.38 (DIA 35) 3.15 (80) DIA 0.985 DIA 0.984 1.10 (28) (DIA 25 +0.015 +0.002 ) M8x1.25 3)4) 1.97 (50) 0.75 (19) Key width 0.24 0.31 (8) (6) 2.28 (57.9) DIA 1.38 (DIA 35) Ports Designation Port for tandard 6) ize 4) p max [psi (bar)] 5) tate 8) B (A) ervice line AE J518 1/2 in O Fastening threads B/A AME 31.1 5/16 in -18UNC-2B; 0.71 (18) deep uction AE J518 3/4 in O Fastening threads AME 31.1 3/8 in -16UNC-2B; 0.79 (20) deep T 1 Drain line IO 11926 3/4 in -16UNF-2B; 0.59 (15) deep 120 lb-ft (160 Nm) 4) O 7) T 2 Drain line IO 11926 3/4 in -16UNF-2B; 0.59 (15) deep 120 lb-ft (160 Nm) 4) X 7) R Air bleed IO 11926 5/16 in -24UNF-2B; 0.39 (10) deep 7 lb-ft (10 Nm) 4) X 7) 1) ANI B92.1a, 30 pressure angle, flat root, side fit, tolerance class 5 2) Thread according to AME B1.1 3) Center bore according to DIN 332 (thread according to DIN 13) 4) Observe the general instructions on page 30 for the maximum tightening torques. 5) Momentary pressure spikes may occur depending on the application. Keep this in mind when selecting measuring devices and fittings. 6) The spot face can be deeper than specified in the appropriate standard. 7) Depending on installation position, T 1 or T 2 must be connected (see also installation instructions on page 28) 8) O = Must be connected (plugged on delivery) X = Plugged (in normal operation)
16/32 Bosch Rexroth Corp. AA2FO RA-A 91401/07.2014 Dimensions size 45 AE design Clockwise rotation Counter-clockwise rotation: port plate is rotated through 180 5.24 (133) 0.79 (20) 45 5.75 (146) 45 T 1 DIA 5.0000 DIA 4.9980 (DIA 127-0.05) 40 0.50 (12.7) 1.34 R (34) 2.60 (66) Flange AE J744 127-4 (C) T 2 2.00 (50.8) 0.75 (19) 7.05 (179) 8.07 (205) 9.06 (230) 0.94 (23.8) 1.18 (30) 3.15 (80) B(A) 4.02 (102) 5.20 (132) Y DIA 6.38 (DIA 162) 4.51 (114.6) 2.52 (64) Detail Y 0.79 (20) 1.03 (26.2) 0.56 (14.3) 4.65 (118) 5.75 (146) 2.06 (52.4) 0.98 (25)
RA-A 91401/07.2014 AA2FO Bosch Rexroth Corp. 17/32 haft ends plined shaft AE J744 1 1/4 in 14T 2/24 DP 1) P Parallel keyed shaft DIN 6885, A8x7x50(mm) 3.74 (95) 7/16-14UNC-2B 2)4) 1.89 (48) 1.10 0.37 (28) (9.5) 1.57 (40) 2.20 (55.9) DIA 1.38 (DIA 35) 3.74 (95) DIA 1.182 DIA 1.181 1.30 (33) (DIA 30 +0.015 +0.002 ) M12x1.75 3)4) 2.36 (60) 1.10 (28) Key width 0.37 0.31 (8) (9.5) 2.67 (67.9) DIA 1.38 (DIA 35) Ports Designation Port for tandard 6) ize 4) p max [psi (bar)] 5) tate 8) B (A) ervice line AE J518 3/4 in O Fastening threads B/A AME 31.1 3/8 in -16UNC-2B; 0.82 (21) deep uction AE J518 1 in O Fastening threads AME 31.1 3/8 in -16UNC-2B; 0.79 (20) deep T 1 Drain line IO 11926 3/4 in -16UNF-2B; 0.59 (15) deep 120 lb-ft (160 Nm) 4) O 7) T 2 Drain line IO 11926 3/4 in -16UNF-2B; 0.59 (15) deep 120 lb-ft (160 Nm) 4) X 7) R Air bleed IO 11926 7/16 in -24UNF-2B; 0.47 (12) deep 30 lb-ft (40 Nm) 4) X 7) 1) ANI B92.1a, 30 pressure angle, flat root, side fit, tolerance class 5 2) Thread according to AME B1.1 3) Center bore according to DIN 332 (thread according to DIN 13) 4) Observe the general instructions on page 30 for the maximum tightening torques. 5) Momentary pressure spikes may occur depending on the application. Keep this in mind when selecting measuring devices and fittings. 6) The spot face can be deeper than specified in the appropriate standard. 7) Depending on installation position, T 1 or T 2 must be connected (see also installation instructions on page 28) 8) O = Must be connected (plugged on delivery) X = Plugged (in normal operation)
18/32 Bosch Rexroth Corp. AA2FO RA-A 91401/07.2014 Dimensions sizes 56, 63 AE design Clockwise rotation Counter-clockwise rotation: port plate is rotated through 180 5.63 (143) 0.79 (20) 45 5.75 (146) 45 DIA 5.0000 DIA 4.9980 (DIA 127-0.05) 0.50 (12.7) 1.42 (36) 40 2.91 (74) Flange AE J744 127-4 (C) R 2.00 (50.8) 0.75 (19) T2 7.68 (195) 8.70 (221) 9.76 (248) T 1 0.94 (23.8) B(A) 3.43 (87) 1.30 4.29 (109) (33) Y DIA6.38 (DIA162) 2.68 (68) 0.91 (23) 5.04 (128) 5.55 (141) Detail Y 0.56 (14.3) 5.75 (146) 1.03 (26.2) 2.06 (52.4) 0.98 (25)
RA-A 91401/07.2014 AA2FO Bosch Rexroth Corp. 19/32 haft ends plined shaft AE J744 T plined shaft AE J744 B Parallel keyed shaft 1 1/4 in 14T 12/24 DP 1) 1 3/8 in 21T 16/32 DP 1) DIN 6885, A10x8x50 (mm) P Parallel keyed shaft DIN 6885, A8x7x50 (mm) (not for size 63) 4.13 (105) 7/16-14UNC-2B 2)4) 1.89 (48) 1.10 0.37 (28) (9.5) 1.57 (40) 2.20 (55.9) DIA 1.57 (DIA 40) 4.13 (105) 7/16-14UNC-2B 2)4) 1.89 (48) 1.10 0.37 (28) (9.5) 1.57 (40) 2.20 (55.9) DIA 1.57 (DIA 40) 4.13 (105) DIA 1.379 DIA 1.378 1.50 (38) (DIA 35 +0.018 +0.002 ) M12x1.75 3)4) 2.36 (60) 1.10 (28) 0.37 (9.5) 2.67 (67.9) Key width 0.39 (10) DIA 1.57 (DIA 40) 4.13 (105) DIA 1.182 DIA 1.181 1.30 (33) (DIA 30 +0.015 +0.002 ) M12x1.75 3)4) 2.36 (60) 1.10 (28) Key width 0.37 0.31 (8) (9.5) 2.67 (67.9) DIA 1.57 (DIA 40) Ports Designation Port for tandard 6) ize 4) p max [psi (bar)] 5) tate 8) B (A) ervice line AE J518 3/4 in O Fastening threads B/A AME 31.1 3/8 in -16UNC-2B; 0.82 (21) deep uction AE J518 1 in O Fastening threads AME 31.1 3/8 in -16UNC-2B; 0.79 (20) deep T 1 Drain line IO 11926 3/4 in -16UNF-2B; 0.59 (15) deep 120 lb-ft (160 Nm) 4) O 7) T 2 Drain line IO 11926 3/4 in -16UNF-2B; 0.59 (15) deep 120 lb-ft (160 Nm) 4) X 7) R Air bleed IO 11926 7/16 in -24UNF-2B; 0.47 (12) deep 30 lb-ft (40 Nm) 4) X 7) 1) ANI B92.1a, 30 pressure angle, flat root, side fit, tolerance class 5 2) Thread according to AME B1.1 3) Center bore according to DIN 332 (thread according to DIN 13) 4) Observe the general instructions on page 30 for the maximum tightening torques. 5) Momentary pressure spikes may occur depending on the application. Keep this in mind when selecting measuring devices and fittings. 6) The spot face can be deeper than specified in the appropriate standard. 7) Depending on installation position, T 1 or T 2 must be connected (see also installation instructions on page 28) 8) O = Must be connected (plugged on delivery) X = Plugged (in normal operation)
20/32 Bosch Rexroth Corp. AA2FO RA-A 91401/07.2014 Dimensions sizes 80, 90 AE design Clockwise rotation Counter-clockwise rotation: port plate is rotated through 180 6.34 (161) 0.79 (20) T 1 45 5.75 (146) 45 DIA 5.0000 DIA 4.9980 (DIA 127-0.05) 0.50 (12.7) 1.57 (40) Flange AE J744 127-4 (C) 40 R 3.66 (93) 2.25 (57.2) 0.98 (25) T 2 8.86 (225) 9.96 (253) 11.10 (282) 1.09 (27.8) B(A) 1.61 (41) 3.90 (99) 4.80 (122) 6.22 (158) Y 2.87 (73) DIA6.38 (DIA162) Detail Y 0.98 (25) 2.31 (58.7) 0.56 (14.3) 1.19 (30.2) 1.26 (32) 5.75 (146) 5.43 (183)
RA-A 91401/07.2014 AA2FO Bosch Rexroth Corp. 21/32 haft ends U plined shaft AE J744 Q plined shaft AE J744 B Parallel keyed shaft 1 3/8 in 21T 16/32 DP 1) 1 1/4 in 14T 12/24 DP 1) DIN 6885, A12x8x56 (mm) P Parallel keyed shaft DIN 6885, A10x8x56 (mm) (not for size 90) 4.53 (115) 7/16-14UNC-2B 2)4) 1.89 (48) 1.10 0.37 (28) (9.5) 1.57 (40) 2.20 (56) DIA 1.77 (DIA 45) 4.53 (115) 7/16-14UNC-2B 2)4) 1.89 (48) 1.10 0.37 (28) (9.5) 1.57 (40) 2.20 (56) DIA 1.77 (DIA 45) 4.53 (115) DIA 1.576 DIA 1.575 1.69 (43) (DIA 40 +0.018 +0.002 ) M16x2 3)4) 2.76 (70) 1.42 (36) Key width 0.47 0.47 (12) (12) 3.07 (78) DIA 1.77 (DIA 45) 4.53 (115) DIA 1.379 DIA 1.378 1.50 (38) (DIA 35 +0.018 +0.002 ) M12x1.75 3)4) 2.76 (70) 1.10 (28) Key width 0.37 0.39 (10) (9.5) 3.07 (78) DIA 1.77 (DIA 45) Ports Designation Port for tandard 6) ize 4) p max [psi (bar)] 5) tate 8) B (A) ervice line AE J518 1 in O Fastening threads B/A AME 31.1 7/16 in -14UNC-2B; 0.87 (22) deep uction AE J518 1 1/4 in O Fastening threads AME 31.1 7/16 in -14UNC-2B; 1.02 (26) deep T 1 Drain line IO 11926 7/8 in -14UNF-2B; 0.67 (17) deep 180 lb-ft (240 Nm) 4) O 7) T 2 Drain line IO 11926 7/8 in -14UNF-2B; 0.67 (17) deep 180 lb-ft (240 Nm) 4) X 7) R Air bleed IO 11926 7/16 in -20UNF-2B; 0.47 (12) deep 30 lb-ft (40 Nm) 4) X 7) 1) ANI B92.1a, 30 pressure angle, flat root, side fit, tolerance class 5 2) Thread according to AME B1.1 3) Center bore according to DIN 332 (thread according to DIN 13) 4) Observe the general instructions on page 30 for the maximum tightening torques. 5) Momentary pressure spikes may occur depending on the application. Keep this in mind when selecting measuring devices and fittings. 6) The spot face can be deeper than specified in the appropriate standard. 7) Depending on installation position, T 1 or T 2 must be connected (see also installation instructions on page 28) 8) O = Must be connected (plugged on delivery) X = Plugged (in normal operation)
22/32 Bosch Rexroth Corp. AA2FO RA-A 91401/07.2014 Dimensions sizes 107, 125 AE design Clockwise rotation Counter-clockwise rotation: port plate is rotated through 180 6.89 (175) 45 7.87 (200) 45 0.98 (25) T 1 DIA 6.0000 DIA 5.9980 (DIA 152.4-0.05) 0.50 (12.7) 1.73 (44) 40 R T 2 2.63 (66.7) 1.26 (32) 1.25 (31.8) 1.69 (43) 4.33 (110) 5.35 (136) 6.81 (173) DIA9.00 (DIA228.6) 0.81 (20.6) 7.87 (200) 3.81 (96.9) 9.69 (246) 10.91 (277) 12.05 (306) B(A) Y Detail Y 3.50 (89) 0.79 (20) Flange AE J744 152-4 (D) 1.41 (35.7) 5.91 (150) 1.97 (38) 2.75 (69.9)
RA-A 91401/07.2014 AA2FO Bosch Rexroth Corp. 23/32 haft ends plined shaft AE J744 U plined shaft B Parallel keyed shaft 1 3/4 in 13T 8/16 DP 1) 1 1/2 in 23T 16/32 DP 1) DIN 6885, A14x9x63 (mm) P Parallel keyed shaft DIN 6885, A12x8x63 (mm) (not for size 125) 4.92 (125) 5/8-11UNC-2B 2)4) 0.47 (12) 2.64 (67) 1.42 (36) 2.16 (55) 2.95 (74.9) DIA 1.97 (DIA 50) 4.92 (125) 5/8-11UNC-2B 2)4) 0.47 (12) 2.44 (62) 1.42 (36) 2.20 (56) 2.75 (69.9) DIA 1.97 (DIA 50) 4.92 (125) DIA 1.772 DIA 1.771 1.91 (48.5) (DIA 45 +0.018 +0.002 ) M16x2 3)4) 3.15 (80) 1.42 (36) Key width 0.47 0.55 (14) (12) 3.46 (87.9) DIA 1.97 (DIA 50) 4.92 (125) DIA 1.576 DIA 1.575 1.69 (43) (DIA 40 +0.018 +0.002 ) M12x1.75 3)4) 3.15 (80) 1.10 (28) Key width 0.37 0.47 (12) (9.5) 1.89 (47.9) DIA 1.97 (DIA 50) Ports Designation Port for tandard 6) ize 4) p max [psi (bar)] 5) tate 8) B (A) ervice line AE J518 1 1/4 in O Fastening threads B/A AME 31.1 1/2 in -13UNC-2B; 0.75 (19) deep uction AE J518 1 1/4 in O Fastening threads AME 31.1 7/16 in -14UNC-2B; 0.95 (24) deep T 1 Drain line IO 11926 7/8 in -14UNF-2B; 0.67 (17) deep 180 lb-ft (240 Nm) 4) O 7) T 2 Drain line IO 11926 7/8 in -14UNF-2B; 0.67 (17) deep 180 lb-ft (240 Nm) 4) X 7) R Air bleed IO 11926 7/16 in -20UNF-2B; 0.47 (12) deep 30 lb-ft (40 Nm) 4) X 7) 1) ANI B92.1a, 30 pressure angle, flat root, side fit, tolerance class 5 2) Thread according to AME B1.1 3) Center bore according to DIN 332 (thread according to DIN 13) 4) Observe the general instructions on page 30 for the maximum tightening torques. 5) Momentary pressure spikes may occur depending on the application. Keep this in mind when selecting measuring devices and fittings. 6) The spot face can be deeper than specified in the appropriate standard. 7) Depending on installation position, T 1 or T 2 must be connected (see also installation instructions on page 28) 8) O = Must be connected (plugged on delivery) X = Plugged (in normal operation)
24/32 Bosch Rexroth Corp. AA2FO RA-A 91401/07.2014 Dimensions sizes 160, 180 AE design Clockwise rotation Counter-clockwise rotation: port plate is rotated through 180 7.48 (190) 0.98 (25) 45 7.87 (200) 45 T 1 DIA 6.0000 DIA 5.9980 (DIA 152.4-0.05) 0.50 (12.7) 1.77 (45) 40 R 4.09 (104) T 2 10.59 (269) 2.63 (66.7) 1.26 (32) 11.93 (303) 12.83 (326) 1.25 (31.8) B(A) 4.76 (121) 1.85 5.87 (149) (47) 7.44 (189) Y DIA9.02 (DIA229) Detail Y 3.98 (101) 0.59 (15) 0.83 (21) 7.87 (200) Flange AE J744 152-4 (D) 1.41 (35.7) 7.09 (180) 2.75 (69.9) 1.65 (42)
RA-A 91401/07.2014 AA2FO Bosch Rexroth Corp. 25/32 haft ends plined shaft AE J744 1 3/4 in 13T 8/16 DP 1) B Parallel keyed shaft DIN 6885, A14x9x70 (mm) P Parallel keyed shaft DIN 6885, A14x9x70 (mm) (not for size 180) 5.51 (140) 5/8-11UNC-2B 2)4) 0.47 (12) 2.64 (67) 1.42 (36) 2.16 (55) 2.95 (74.9) DIA 2.63 (DIA 60) 5.51 (140) DIA 1.969 DIA 1.968 2.11 (53.5) (DIA 50 +0.018 +0.002 ) M16x2 3)4) 3.54 (90) 1.42 (36) Key width 0.47 0.55 (14) (12) 3.85 (97.9) DIA 2.36 (DIA 60) 5.51 (140) DIA 1.772 DIA 1.771 1.91 (48.5) (DIA 45 +0.018 +0.002 ) M16x2 3)4) 3.54 (90) 1.42 (36) Key width 0.47 0.55 (14) (12) 3.85 (97.9) DIA 2.36 (DIA 60) Ports Designation Port for tandard 6) ize 4) p max [psi (bar)] 5) tate 8) B (A) ervice line AE J518 1 1/4 in O Fastening threads B/A AME 31.1 1/2 in -13UNC-2B; 0.75 (19) deep uction AE J518 1 1/2 in O Fastening threads AME 31.1 1/2 in -13UNC-2B; 0.95 (24) deep T 1 Drain line IO 11926 7/8 in -14UNF-2B; 0.67 (17) deep 180 lb-ft (240 Nm) 4) O 7) T 2 Drain line IO 11926 7/8 in -14UNF-2B; 0.67 (17) deep 180 lb-ft (240 Nm) 4) X 7) R Air bleed IO 11926 9/16 in -20UNF-2B; 0.51 (13) deep 60 lb-ft (80 Nm) 4) X 7) 1) ANI B92.1a, 30 pressure angle, flat root, side fit, tolerance class 5 2) Thread according to AME B1.1 3) Center bore according to DIN 332 (thread according to DIN 13) 4) Observe the general instructions on page 30 for the maximum tightening torques. 5) Momentary pressure spikes may occur depending on the application. Keep this in mind when selecting measuring devices and fittings. 6) The spot face can be deeper than specified in the appropriate standard. 7) Depending on installation position, T 1 or T 2 must be connected (see also installation instructions on page 28) 8) O = Must be connected (plugged on delivery) X = Plugged (in normal operation)
8.27 (210) 2.00 (50.8) 26/32 Bosch Rexroth Corp. AA2FO RA-A 91401/07.2014 Dimensions size 250 AE design Clockwise rotation Counter-clockwise rotation: port plate is rotated through 180 0.63 (16) 4.88 (124) 2.52 (64) U T 1 4x90 ( =360 ) 45 DIA 6.500 DIA 6.498 (DIA 165.1-0.05) 0.98 (25) 26.5 2.63 T 2 4.88 (124) 12.17 (309) 13.82 (351) 14.61 (371) 1.25 (31.8) (32) (66.7) 1.26 3.23 (82) 6.77 (172) B(A) Y DIA12.50 (DIA317.5) 10.31 (262) 0.81 (20.6) 10.31 (262) Flange AE J744 165-4 (E) Detail Y 4.65 (118) 0.47 (12) 2.48 (63) 3.50 (88.9)
RA-A 91401/07.2014 AA2FO Bosch Rexroth Corp. 27/32 haft ends plined shaft AE J744 2 in 15T 8/16 DP 1) K Parallel keyed shaft 12.7x12.7x76.7 (mm) DIA5.51(DIA140) 0.47 (12) 5/8-11UNC-2B 2)3) 2.63 (66.7) 1.42 (36) 2.04 (51.7) 2.98 +0.04 (74.7 +1 ) DIA 2.36 (DIA 60) DIA5.51(DIA140) DIA 2.000 DIA 1.998 (DIA 50.8-0.03) 2.22 (56.3) 5/8-11UNC-2B 2)3) 3.13 (79.4) 1.42 (36) Key width 0.47 0.50 (12.7) (12) 3.48 +0.04 (87.4 +1 ) DIA 2.36 (DIA 60) Ports Designation Port for tandard 6) ize 4) p max [psi (bar)] 5) tate 8) B (A) ervice line AE J518 1 1/4 in O Fastening threads B/A AME 31.1 1/2 in -13UNC-2B; 0.79 (20) deep uction AE J518 2 1/2 in O Fastening threads AME 31.1 1/2 in -13UNC-2B; 0.79 (20) deep T 1 Drain line IO 11926 7/8 in -14UNF-2B; 0.67 (17) deep 180 lb-ft (240 Nm) 4) O 7) T 2 Drain line IO 11926 7/8 in -14UNF-2B; 0.67 (17) deep 180 lb-ft (240 Nm) 4) X 7) U Bearing flushing (plugged) IO 11926 9/16 in -20UNF-2B; 0.51 (13) deep 60 lb-ft (80 Nm) 4) X 7) 1) ANI B92.1a, 30 pressure angle, flat root, side fit, tolerance class 5 2) Thread according to AME B1.1 3) Center bore according to DIN 332 (thread according to DIN 13) 4) Observe the general instructions on page 30 for the maximum tightening torques. 5) Momentary pressure spikes may occur depending on the application. Keep this in mind when selecting measuring devices and fittings. 6) The spot face can be deeper than specified in the appropriate standard. 7) Depending on installation position, T 1 or T 2 must be connected (see also installation instructions on page 28) 8) O = Must be connected (plugged on delivery) X = Plugged (in normal operation)
28/32 Bosch Rexroth Corp. AA2FO RA-A 91401/07.2014 Installation instructions General During commissioning and operation, the axial piston unit must be filled with hydraulic fluid and air bled. This must also be observed following a relatively long standstill as the axial piston unit may drain back to the reservoir via the hydraulic lines. Particularly in the installation position "drive shaft upwards" filling and air bleeding must be carried out completely as there is, for example, a danger of dry running. The case drain fluid in the pump housing must be directed to the reservoir via the highest available drain port (T 1, T 2 ). For combinations of multiple units, make sure that the respective case pressure in each unit is not exceeded. In the event of pressure differences at the drain ports of the units, the shared drain line must be changed so that the minimum permissible case pressure of all connected units is not exceeded in any situation. If this is not possible, separate drain lines must be laid if necessary. To achieve favorable noise values, decouple all connecting lines using elastic elements and avoid above-reservoir installation. In all operating conditions, the suction and drain lines must flow into the reservoir below the minimum fluid level. The permissible suction height h results from the overall loss of pressure; it must not, however, be higher than h max = 800 mm. The minimum suction pressure at port must also not fall below 0.8 bar absolute during operation and during cold start. Installation position ee the following examples 1 to 8. Further installation positions are possible upon request. Recommended installation positions: 1 and 2. Note With sizes 10 to 180 with installation position "shaft upward", an air-bleed port R is required (state in plain text when ordering - special version). With size 250, port U is provided as standard in the area near the bearings for air bleeding. Installation position Air bleed Filling 1 T 1 2 T 2 3 T 1 4 R (U) T 2 5 L 1 T 1 (L 1 ) 6 L 1 T 2 (L 1 ) 7 L 1 T 1 (L 1 ) 8 R (U) T 2 (L 1 ) Below-reservoir installation (standard) Below-reservoir installation means that the axial piston unit is installed outside of the reservoir below the minimum fluid level. 1 2 B T 1 a min h t min h min 3 4 B L 1 R U T 1, T 2 h t min h min B h t min h min T 1 h max a min a min h t min h min h t min h min a min a min B T 2 B R(U) Filling / air bleed Air bleed port Bearing flushing / air bleed port uction port Drain port Minimum required immersion depth (200 mm) Minimum required spacing to reservoir bottom (100 mm) Baffle (baffle plate) Maximum permissible suction height (800 mm) When designing the reservoir, ensure adequate space between the suction line and the drain line. This prevents the heated, return flow from being drawn directly back into the suction line. T 2
RA-A 91401/07.2014 AA2FO Bosch Rexroth Corp. 29/32 Above-reservoir installation Above-reservoir installation means that the axial piston unit is installed above the minimum fluid level of the reservoir. Recommendation for installation position 8 (drive shaft upward): A check valve in the drain line (cracking pressure 7.5 psi (0.5 bar)) can prevent draining of the pump housing. 5 6 L 1 T 1 L 1 T 2 h max a min h max a min h t min h t min B h min h min 7 8 B T 1 L 1 L1 R(U) h max 0.5 bar T2 a min h max a min h t min h t min B h min h min B
30/32 Bosch Rexroth Corp. AA2FO RA-A 91401/07.2014 General instructions The pump AA2FO is designed to be used in open and closed circuits. The project planning, installation and commissioning of the axial piston unit requires the involvement of qualified personnel. Before using the axial piston unit, please read the corresponding instruction manual completely and thoroughly. If necessary, these can be requested from Bosch Rexroth. 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 operating conditions of the axial piston unit (operating pressure, fluid temperature), the characteristic may shift. ervice line ports: --The ports and fastening threads are designed for the specified maximum pressure. The machine or system manufacturer must ensure that the connecting elements and lines correspond to the specified application conditions (pressure, flow, hydraulic fluid, temperature) with the necessary safety factors. --The service line ports and function ports can only be used to accommodate hydraulic lines. The data and notes contained herein must be adhered to. Not all versions of the product are approved for use in a safety function pursuant to IO 13849. If you require characteristic values relating to reliability (e. g. MTTF d ) for functional safety, please consult the responsible contact person at Bosch Rexroth. The following tightening torques apply: --Fittings: Observe the manufacturer's instructions regarding tightening torques of the fittings used. --Mounting bolts: For mounting bolts with metric IO thread according to DIN 13 or with thread according to AME B1.1, we recommend checking the tightening torque in individual cases in accordance with VDI 2230. --Female threads in the axial piston unit: The maximum permissible tightening torques M G max are maximum values for the female threads and must not be exceeded. - - Threaded plugs: For the metallic threaded plugs supplied with the axial piston unit, the required tightening torques of threaded plugs M V apply. Ports tandard ize of thread Maximum permissible tightening torque of the female threads M G max Required tightening torque of the threaded plugs M V WAF hexagon socket of the threaded plugs IO 11926 5/16-24 UNF-2B 7 lb-ft 5 lb-ft 1/8 in 10 Nm 7 Nm 7/16-20 UNF-2B 29 lb-ft 13 lb-ft 3/16 in 40 Nm 18 Nm 9/16-18 UNF-2B 59 lb-ft 26 lb-ft 1/4 in 80 Nm 35 Nm 3/4-16 UNF-2B 118 lb-ft 52 lb-ft 5/16 in 160 Nm 70 Nm 7/8-14 UNF-2B 177 lb-ft 81 lb-ft 3/8 in 240 Nm 110 Nm 1 1/16-12 UN-2B 266 lb-ft 125 lb-ft 9/16 in 360 Nm 170 Nm 1 5/16-12 UN-2B 398 lb-ft 199 lb-ft 5/8 in 540 Nm 270 Nm Bosch Rexroth Corporation Mobile Applications 8 outhchase Court Fountain Inn, C 29644-9018, UA Telephone (864) 967-2777 Facsimile (864) 967-8900 www.boschrexroth-us.com Bosch Rexroth Corporation All rights reserved. Neither this document, nor any part of it, may be reproduced, duplicated, circulated or disseminated, whether by copy, electronic format or any other means, without the prior consent and authorization of Bosch Rexroth Corp. The data and illustrations in this brochure/data sheet are intended only to describe or depict the products. No representation or warranty, either express or implied, relating to merchantability or fitness for intended use, is given or intended by virtue of the information contained in this brochure/data sheet. The information contained in this brochure/data sheet in no way relieves the user of its obligation to insure the proper use of the products for a specific use or application. All products contained in this brochure/data sheet are subject to normal wear and tear from usage. ubject to change.