Axial Piston Variable Pump A10VO (US-Version)

Transcription

1 Axial Piston Variable Pump A1VO (U-Version) RA-A 9273/ /6 Replaces: 11.7 RE 9278/3.8 and RE 9277/11.1 Data sheet eries 52/53 ize NG1 to 1 Nominal pressure 36 psi (25 bar) Peak pressure 46 psi (315 bar) Open circuits eries 52 eries 53 Contents Type code for standard program 2 Technical data 5 Permissible radial and axial forces on the drive shaft 1 DR Pressure control 12 DRG Pressure control remotely operated 13 DRF (DFR) DR (DFR1) Pressure and flow control 14 A... Pressure, flow and power control 15 EP Electro-proportional control 16 EK Electro-proportional control with controller cut-off 17 ED Electro-hydraulic pressure control 2 ER Electro-hydraulic pressure control 21 Dimensions, size 1 to 1 22 Dimensions through drive 5 Combination pumps A1VO + A1VO 54 Connector for solenoids 55 Installation instructions 56 General instructions 6 Features Variable pump in axial piston swashplate design for hydrostatic drives in an open circuit The flow is proportional to the drive speed and the displacement. The flow can be steplessly varied by adjusting the swashplate angle. table storage for long service life High permissible drive speed Favorable power-to-weight ratio - compact dimensions ow noise Excellent suction characteristics Axial and radial load capacity of drive shaft Pressure and flow control Electro-hydraulic pressure control Power control Electro-proportional swivel angle control hort response times

2 2/6 osch Rexroth Corp. A1VO eries 52/53 RA-A 9273/12.11 Type code for standard program A1V() O / 5 V Axial piston unit ) washplate design, variable, l A1V 1 nominal pressure 36 psi (25 bar), maximum pressure 46 psi (315 bar) l l l l l l l A1V Operation mode 2 Pump, open circuit O ize (NG) 3 Geometric displacement, see table of values on page ) Control device Pressure control l l l l l l l l DR with flow control, hydraulic -T open l l l l l 3) DFR l l l 2) l DRF -T plugged l l l l l 3) DFR1 4 l l l 2) l DR Electrically overridable (negative characteristic) m m m l l m EF.D. 4) with pressure cut-off, remotely operated hydraulic l l l l l l l l DRG electrical negative characteristic U = 12 V l l l l l l l ED71 U = 24 V l l l l l l l ED72 positive characteristic U = 12 V l l l l l l l ER71 5) U = 24 V l l l l l l l ER72 5) Power control with pressure cut-off tart of control 145 to 51 psi (1 to 35 bar) l l l l l l A5D 52 to 115 psi (36 to 7 bar) l l l l l l A6D 13 to 152 psi (71 to 15 bar) l l l l l l A7D 1535 to 23 psi (16 to 14 bar) l l l l l l A8D 245 to 3335 psi (141 to 23 bar) l l l l l l A9D remotely operated tart of control see A.D l l l l l l A.DG Flow control, -T plugged tart of control see A.D l l l l l l A.D Flow control, electrically overridable tart of control see A.D (negative characteristic), -T plugged l l l l l l A. 1) 2) 3) 4) 5) eries 52 units are delivered as standard with 3.66 in3 (6 cm 3 ). Higher values on request. eries 53 only with D flange eries 52 only with C flange ee RE 9279 The following must be taken into account during project planning: Excessive current levels (I > 12 ma with 12 V or I > 6 ma with 24 V) to the ER solenoid can result in undesired increase of pressure which can lead to pump or system damage: - Use I max current limiter solenoids. - An intermediate plate pressure controller can be used to protect the pump in the event of overflow. An accessory kit with intermediate plate pressure controller can be ordered from osch Rexroth under part number R = available m = on request = not available

3 RA-A 9273/12.11 A1VO eries 52/53 osch Rexroth Corp. 3/6 Type code for standard program A1V() O / 5 V Electro-proportional control (positive characteristic) with ) pressure control U = 12 V l l l l l m EP1D U = 24 V l l l l l m EP2D Pressure and flow control, U = 12 V l l l l l m EP1DF -T open (load sensing) U = 24 V l l l l l m EP2DF Pressure and flow control, U = 12 V l l l l l m EP1D -T plugged (load sensing) U = 24 V l l l l l m EP2D Electrohydraulic pressure control U = 12 V l l l l l m EP1ED U = 24 V l l l l l m EP2ED Pressure and flow control with controller U = 12 V l l l l l m EK1DF cut-off, -T open (load sensing) U = 24 V l l l l l m EK2DF Pressure and flow control with controller cut-off, -T plugged (load sensing) U = 12 V l l l l l m EK1D U = 24 V l l l l l m EK2D Electrohydraulic pressure control with controller cut-off U = 12 V l l l l l m EK1ED U = 24 V l l l l l m EK2ED eries 5 eries 5, index 2 l l l l l 522) eries 5, index 3 l l l l l l 53 3)4) Direction of rotation With view on drive shaft clockwise R 6 counter clockwise eals 7 FKM (fluor-caoutchouc) V Drive shaft ) plined shaft standard shaft l l l l l l l l ANI 92.1a similar to shaft however for higher input torque l l l l l R 8 reduced diameter, not for through drive l l l l l l l U similar to shaft "U", however for higher torque l l l l l W Parallel shaft AE with key, not for through drive l l l l K 7) Tapered with Woodruff key l l l C 7) 1) 2) 3) 4) 5) 6) 7) eries 52 units are delivered as standard with 3.66 in3 (6 cm 3 ). Higher values on request. Control DR, DFR, DFR1, DRG, ED and ER: delivery with size 1, 28, 45, 6 and 856) only in series 52 Control DR, DRF, DR, DRG, ED and ER: delivery with size 18, 63, 855) and 1 only in series 53 Control EF., A.., EP.. and EK.. Delivery with size 18 to 1 only in series 53 Control DRF and DR: delivery with size 85 only with D flange in series 53 Control DFR, DFR1: delivery with size 85 only with C flange in series 52 only series 52 = available m = on request = not available

4 4/6 osch Rexroth Corp. A1VO eries 52/53 RA-A 9273/12.11 Type code for standard program A1V() O / 5 V Mounting flange ) IO (AE) 2-bolt l l l l l l l l C 4-bolt l l l 2) l D ervice line port ) AE flange port at rear, UNC fixing thread (not for through drive) l l l l l l l 61 1 AE flange port on opposite side, UNF fixing thread (for through drive) l l l l l l l 62 UNF threaded ports, rear (not for through drive) l 64 Through drive ) Without through drive, standard for versions 61 and 64 l l l l l l l l N AE J744 flange coupling for splined shaft 3 ) Diameter diameter 82-2 (A) 5/8 in 9T 16/32DP l l l l l l l K1 3/4 in 11T 16/32DP l l l l l l l K () 7/8 in 13T 16/32DP l l l l l l K68 1 in 15T 16/32DP l l l l l K (C) 1 1/4 in 14T 12/24DP l l l l K15 1 1/2 in 17T 12/24DP l l K (C) 1 1/4 in 14T 12/24DP l l K7 1 1/2 in 17T 12/24DP l l K24 Connector for solenoids ) DEUTCH molded connector, 2-pin without suppressor diode l l l l l l l P 1) eries 52 units are delivered as standard with 3.66 in3 (6 cm 3 ). Higher values on request. 2) Only available in series 53. For controller designation and series assignment, please refer to positions 4, 5, including footnotes. 3) Coupling for splined shaft as per ANI 92.1a = available m = on request = not available

5 RA-A 9273/12.11 A1VO eries 52/53 osch Rexroth Corp. 5/6 Technical data Hydraulic fluid Prior to project design, please see our data sheets RE 922 (mineral oil) and RE 9221 (environmentally acceptable hydraulic fluids) for detailed information regarding the choice of hydraulic fluid and application conditions. When using environmentally acceptable hydraulic fluids, the limitations regarding technical data and seals must be observed. Please contact us. When ordering, indicate the hydraulic fluid that is to be used. Operating viscosity range For optimum efficiency and service life we recommend that the operating viscosity (at operating temperature) be selected the range n opt = opt. operating viscosity 8 to 17 U (16 to 36 mm 2 /s) referred to reservoir temperature (open circuit). imits of viscosity range For critical operating conditions the following values apply: n min = 6 U (1 mm 2 /s) for short periods (t 1 min) at max. perm. case drain temperature of 239 F (115 C). Please note that the max. case drain temperature of 115 C is also not exceeded in certain areas (for instance bearing area). The fluid temperature in the bearing area is approx. 7 F (5 K) higher than the average case drain temperature. n max = 75 U (16 mm 2 /s) for short periods (t 1 min) on cold start (p 435 psi (3 bar), n 1 rpm, t min -13 F (-25 C)) Depending on the installation situation, special measures are necessary at temperatures between -4 F (-4 C) and -13 F (-25 C). Please contact us. For detailed information on operation with low temperatures see data sheet RE election diagram Notes on the selection of the hydraulic fluid In order to select the correct hydraulic fluid, it is necessary to know the operating temperature in relation to the ambient temperature. In an open circuit this is the reservoir temperature. The fluid should be selected so that within the operating temperature range, the viscosity lies within the optimum range (n opt ), see shaded section of the selection diagram. We recommend to select the higher viscosity grade in each case. Example: at an ambient temperature of F ( C) the operating temperature in the reservoir is 14 F (6 C). In the optimum operating viscosity range (n opt ; shaded area) this corresponds to viscosity grades VG 46 resp. VG 68; VG 68 should be selected. Important The case drain temperature is influenced by pressure and input speed and is always higher than the reservoir temperature. However, at no point in the component may the temperature exceed 239 F (115 C). The temperature difference specified on the left is to be taken into account when determining the viscosity in the bearing. Please contact us if the above conditions cannot be met due to extreme operating parameters. Filtration of the fluid The finer the filtration the better the fluid cleanliness class and the longer the service life of the axial piston unit. In order to guarantee the functional reliability of the axial piston unit it is necessary to carry out a gravimetric evaluation of the fluid to determine the particle contamination and the cleanliness class according to IO 446. A cleanliness class of at least 2/18/15 must be achieved. At very high hydraulic fluid temperatures (195 F (9 C) to maximum 239 F (115 C)), a cleanliness class of at least 19/17/14 according to IO 446 is necessary. Please contact us if the above classes cannot be observed F Viscosity n C VG 68 VG 46 VG 32 VG 22 VG U mm 2 /s mm 2 /s C t min = -4 F (-4 C) F Temperature t Fluid temperature range U 42 t max = 24 F (115 C)

6 6/6 osch Rexroth Corp. A1VO eries 52/53 RA-A 9273/12.11 Technical data Operating pressure range Pressure at service line port Nominal pressure p nom 36 psi (25 bar) absolute Maximum pressure p max 46 psi (315 bar) absolute ingle operating period 2.5 ms Total operating period 3 h Minimum pressure (high-pressure side) 145 psi (1 bar) Rate of pressure change R A max _ 235 psi/s (16 bar/s) Pressure p p nom Dp Dt Time t Pressure at suction port (inlet) Minimum pressure p min 1 psi (.8 bar) absolute Maximum pressure p max 75 psi (5 bar) absolute Case drain pressure Maximum permissible case drain pressure (at port, 1 ): Maximum 7.5 psi (.5 bar) higher than the inlet pressure at port, however not higher than 3 psi (2 bar) absolute. p max abs 3 psi (2 bar) Definition Nominal pressure p nom The nominal pressure corresponds to the maximum design pressure. Maximum pressure p max The maximum pressure corresponds to the operating pressure within the single operating period. The total of the single operating periods must not exceed the total operating period. Minimum pressure (high-pressure side) Minimum pressure on the high-pressure side () that is required in order to prevent damage to the axial piston unit. Minimum pressure (inlet) open circuit Minimum pressure at suction port (inlet) that is required to prevent damage to the axial piston unit. The minimum pressure depends on the speed and displacement of the axial piston unit. Rate of pressure change R A Maximum permissible pressure build-up and pressure reduction speed with a pressure change over the entire pressure range. Pressure p ingle operating period Maximum pressure p max Nominal pressure p nom t 1 t 2 t n Maximum permissible speed (limit speed) Permissible speed by increasing inlet pressure p abs at suction opening or at V g V g max. Minimum pressure (high-pressure side) Total operating period = t 1 + t t n Time t peed n/no max [rpm (min -1 )] Displacement V g /V g max [%] 23 (1.6) 2 (1.4) 17.5 (1.2) 14.5 (1.) 13 (.9) (.8) Inlet pressure pabs [psi (bar)]

7 RA-A 9273/12.11 A1VO eries 52/53 osch Rexroth Corp. 7/6 Notes

8 8/6 osch Rexroth Corp. A1VO eries 52/53 RA-A 9273/12.11 Technical data Table of values (theoretical values, without efficiencies and tolerances: values rounded) ize NG ) 63 2) 85 1 Geometrical displacement V g max per revolution in (cm 3 ) (1.5) (18) (28) (45) (6) (63) (85) (1) peed 3) maximum at V g max n nom rpm ) maximum at V g < V g max n max perm rpm Flow at n nom and V g max q v max gpm (l/min) (37) (59) (84) (117) (156) (163) (212) (23) at n E = 15 rpm q ve max gpm and V g max (l/min) (15) (27) (42) (68) (9) (95) (128) (15) Power at Dp = 36 psi (25 bar) at n nom, V g max P max HP (kw) 22 (16) 34 (25) 47 (35) 65 (49) 88 (65) 9 (68) 119 (89) 13 (96) at n E = 15 rpm P E max HP and V g max (kw) (7) (11) (18) (28) (37) (39) (53) (62) Torque at V g max p = 36 psi T max lb-ft and (25 bar) (Nm) (42) (71) (111) (179) (238) (25) (338) (398) p = 144 psi T lb-ft (1 bar) (Nm) (17) (29) (45) (72) (95) (1) (135) (159) Rotary c lb-ft/rad stiffness, (Nm/rad) (92) (11) (223) (375) (655) (655) (143) (143) drive R c shaft lb-ft/rad (Nm/rad) (148) (263) (41) (694) (694) U c lb-ft/rad (Nm/rad) (68) (8) (3) (492) (492) (129) (129) W c lb-ft/rad (Nm/rad) (344) (54) (54) (1179) (1179) K/C c lb-ft/rad (Nm/rad) (18) (268) (439) (739) Moment of inertia rotary J TW lbs-ft group (kgm 2 ) (.6) (.93) (.17) (.33) (.56) (.56) (.12) (.12) Angular accel., max. 5) a rad/s 2 ) Filling capacity V gal () (.2) (.25) (.3) (.5) (.8) (.8) (1) (1) Weight (without through m drive) approx. lbs (kg) 17 (8) 25 (11.5) 31 (14) 4 (18) 48.5 (22) 48.5 (22) 75 (34) 75 (34) 1) Only series 52 2) Only series 53 3) The values are applicable: - for absolute pressure p abs = 15 psi (1 bar) at the suction port - for the optimum viscosity range of n opt = 8 to 17 U (16 to 36 mm 2 /s) - for mineral-based operating materials with a specific mass of.88 kg/l. 4) Please contact us regarding higher speeds 5) The scope of application lies between the minimum necessary and the maximum permissible drive speeds. Valid for external excitation (e.g. diesel engine 2- to 8-fold rotary frequency, cardan shaft 2-fold rotary frequency). The limiting value is only valid for a single pump. The loading capacity of the connecting parts must be taken into account.

9 RA-A 9273/12.11 A1VO eries 52/53 osch Rexroth Corp. 9/6 Technical data Note Exceeding the maximum or falling below the minimum permissible values on page 8 can lead to a loss of function, a reduction in operational service life or total destruction of the axial piston unit. We recommend checking the loading with tests or calculations / simulations and comparison with the permissible values. Determination of size Flow q V = V g n h V V g = Geometric displ. per revolution in in 3 (cm 3 ) [gpm (l/min)] 231 (1) Dp = Differential pressure in psi (bar) Torque T = V g Dp n = peed in rpm [lb-ft (Nm)] 24 (2) p h mh h V = Volumetric efficiency Power P = 2p T n = q V Dp h mh = Mechanical-hydraulic efficiency [HP (kw)] 33. (6) (6) h t h t = Total efficiency (h t = h V h mh )

10 1/6 osch Rexroth Corp. A1VO eries 52/53 RA-A 9273/12.11 Technical data Permissible radial and axial forces on the drive shaft ize NG / Radial force maximum at a/2 Fax F q max lbf (N) 56 (25) 78 (35) 27 (12) 337 (15) 382 (17) 45 (2) 45 (2) Axial force maximum Fq a/2 a/2 + F ax max lbf (N) 9 (4) 157 (7) 225 (1) 337 (15) 45 (2) 675 (3) 675 (3) a Permissible input and through-drive torques ize NG / Torque at V g max and Dp = 36 psi (25 bar) 1) T max lb-ft (Nm) 31 (42) 52 (71) 82 (111) 132 (179) 184 (25) 293 (338) 293 (398) Input torque for drive shaft, maximum 2) T E max lb-ft (Nm) 93 (126) 91 (124) DIA in 3/4 3/4 7/ /4 1 1/2 1 1/2 R T E max lb-ft (Nm) 11 (15) 166 (225) 295 (4) 479 (65) DIA in 3/4 7/ /4 U T E max lb-ft (Nm) 44 (6) 43 (59) 139 (188) 226 (36) 463 (628) 463 (628) DIA in 5/8 5/8 7/ /4 1 1/4 W T E max lb-ft (Nm) 162 (22) 292 (396) 447 (65) 447 (65) DIA in 7/ /4 1 1/4 K T E max lb-ft (Nm) 78 (16) 17 (145) 156 (212) 325 (441) DIA in (mm).75 (19.5).875 (22.225) 1. (25.4) 1.25 (31.75) C 3) T E max lb-ft (Nm) 17 (145) 156 (212) 325 (441) 4) Maximum through-drive torque for drive shaft T D max lb-ft (Nm) 8 (18) 118 (16) 235 (319) 357 (484) 515 (698) 515 (698) R T D max lb-ft (Nm) 89 (12) 13 (176) 27 (365) 357 (484) Without considering efficiency For drive shafts free of radial load only series 52 only size 6 1) 2) 3) 4) Distribution of torques T 1 T 2 T E 1. Pumpe Pump 1 2. Pumpe2 T D

11 RA-A 9273/12.11 A1VO eries 52/53 osch Rexroth Corp. 11/6 Technical data Drive power and flow Operating material: Hydraulic fluid IO VG 46 DIN 51519, t = 5 C ize 1 n = 15 rpm n = 36 rpm gpm (/min) 1 (35) (2) 7.5 (25) q V p qv max 5 (15) (1) 2.5 (5) (5) Flow q V (5) ize 18 n = 15 rpm n = 33 rpm Flow q V gpm (/min) (6) (5) (4) (3) (2) (1) (15) p qv min (2) Operating presure p q V ize 28 n = 15 rpm n = 3 rpm gpm (/min) 23.8 (9) 2 (8) 15 (6) q v 1 (4) 5 (2) (5) Flow q v (kw) HP 3 25 (15) (25) (bar) (4) (3) psi (2) p qv max p qv min (1) 2 () (5) (1) (15) (2) (25) (bar) Operating presure p (1) (15) P qv min (2) P qv max psi (kw) HP (3) (2) (1) (25) (bar) Drive power P q V Drive power P q V (kw) HP (4) psi Operating pressure p ize 45 n = 15 rpm Flow q v n = 26 rpm gpm (/min) 3 (12) 25 (1) 2 (8) 15 (6) 1 (4) 5 (2) (5) q v (1) (15) (2) P qv max P qv min (kw) HP (6) 8 (5) (4) 6 (3) 4 (2) (1) 2 (25)(bar) psi Operating pressure p Drive power Pqv Drive power Pqv ize 6/63 n = 15 rpm n = 26 rpm Flow q v gpm (/min) 4 (16) 35 (14) 3 (12) 25 (1) 2 (8) 15 (6) 1 (4) 5 (2) (5) ize 85 n = 15 rpm n = 25 rpm Flow q V gpm (/min) 58 (22) 55 (2) 5 (18) 45 (16) 4 (14) 35 (12) 3 (1) 25 (8) 2 15 (6) 1 (4) 5 (2) q v (1) (15) (2) P qv max P qv min (kw) HP (8) 1 (7) (6) 8 (5) (4) (3) (2) (1) (25) (bar) psi Operating pressure p (5) ize 1 n = 15 rpm n = 23 rpm Flow q V gpm (/min) 6 (23) 58 (22) 55 (2) 5 (18) 45 (16) 4 (14) 35 (12) 3 (1) 25 (8) 2 15 (6) 1 (4) 5 (2) (5) q V p qv max p qv 1 2 Operating pressure Drive power Pqv (kw) (11) (1) (9) (8) (7) (6) (5) (4) (3) (2) (1) (1) (15) (2) (25) (bar) q V p qv max p qv 1 2 Operating pressure psi (kw) (11) (1) (9) (8) (7) (6) (5) (4) (3) (2) (1) HP (1) (15) (2) (25) (bar) psi Drive power P q V HP Drive power P q V

12 12/6 osch Rexroth Corp. A1VO eries 52/53 RA-A 9273/12.11 DR Pressure control The pressure control limits the maximum pressure at the pump output within the pump control range. The variable pump only supplies as much hydraulic fluid as is required by the consumers. If the operating pressure exceeds the target pressure set at the pressure valve, the pump will regulate towards a smaller displacement. The pressure can be set steplessly at the control valve. tatic characteristic (at n 1 = 15 rpm; t fluid = 12 F (5 C)) Circuit diagram 1 Operating pressure p 1) psi (bar) 36 (25) 29 etting range 1) (2) Flow q v [gal (l/min)] Hysteresis / pressure rise pmax In order to prevent damage to the pump and the system, this setting range is the permissible setting range and it is not allowed to exceeded. The range of possible settings at the valve are greater. 2 Port for ervice line uction line, 1,2 Case drain fluid ( 1,2 plugged) Controller data Hysteresis and repeatability p maximum 45 psi (3 bar) Pressure rise, maximum NG / p psi (bar) 9 (6) 9 (6) 9 (6) 9 (6) 115 (8) 175 (12) 2 (14) Control fluid consumption max. approx..8 gpm (3 l/min) Flow losses at q Vmax see page 11.

13 RA-A 9273/12.11 A1VO eries 52/53 osch Rexroth Corp. 13/6 DRG Pressure control remotely operated The DRG control valve overrides the function of the DR pressure controller (see page 12). A pressure relief valve can be externally piped to port for remote setting of pressure below the setting of the DR control valve spool. This relief valve is not included in the delivery contents of the pump. The differential pressure at the control valve is set as standard to 29 psi (2 bar). The control fluid volume at port is approx..4 gpm (1.5 l/min). If another setting is required (range from 145 to 32 psi (1 to 22 bar)) please state this in clear text. As a separate pressure relief valve we can recommend: DDH 6 (hydraulic) to RE 2542 or DETR-O 381 with orifice dia..3 in (.8 mm) in P (electric) to RE The max. length of piping should not exceed 6.6 ft (2 m). Circuit diagram 1 Not included in the delivery contents tatic characteristic (at n 1 = 15 rpm; t fluid = 12 F (5 C)) Operating pressure p psi 36 etting range 1) 29 (bar) (25) (2) Hysteresis / pressure rise pmax 2 Port for ervice line uction line, 1,2 Case drain fluid ( 1,2 plugged) Pilot pressure Flow q v [gpm (l/min)] 1) In order to prevent damage to the pump and the system, this setting range is the permissible setting range and it is not allowed to be exceeded. The range of possible settings at the valve is higher. Controller data Hysteresis and repeatability p maximum 45 psi (3 bar) Pressure rise, maximum NG / p psi (bar) 9 (6) 9 (6) 9 (6) 9 (6) 115 (8) 175 (12) 2 (14) Control fluid consumption max. approx. 1.2 gpm (4.5 l/min) Flow losses at q Vmax see page 11.

14 14/6 osch Rexroth Corp. A1VO eries 52/53 RA-A 9273/12.11 DRF (DFR) DR (DFR1) Pressure and flow control In addition to the pressure control function (see page 12), a variable orifice (e.g. directional valve) is used to adjust the differential pressure upstream and downstream of the orifice. This is used to control the pump flow. The pump flow is equal to the actual required flow by the consumer, regardless of changing pressure levels. The pressure control overrides the flow control function. Note The DR (DFR1) valve version has no connection between and the reservoir. Unloading the -pilot line must be possible in the valve system. ecause of the flushing function sufficient unloading of the -line must also be provided. tatic characteristic Flow control at n 1 = 15 rpm; t fluid = 12 F (5 C)) Circuit diagram 1 Plugged in DR (DFR1) valve Not included in the delivery contents Operating pressure p 1) In order to prevent damage to the pump and the system, this setting range is the permissible setting range and it is not allowed to be exceeded. The range of possible settings at the valve is higher. tatic characteristic at variable speed Flow qv [l/min] psi (bar) 3625 (25) 29 etting range 1) (2) Flow q v [gpm (l/min)] peed n [rpm] Possible connections at port (not included in the delivery, order separately) mobile control blocks Mobile control blocks M4-12 (RE 64276) Mobile control blocks M4-15 (RE 64283) UDV mobile control blocks Mobile control blocks M6-15 (RE 64284) Mobile control blocks M7-22 (RE 64295) Hysteresis / pressure rise pmax Hysteresis / pressure rise pmax Port for ervice line uction line, 1,2 Case drain fluid ( 1,2 plugged) Pilot pressure Differential pressure p tandard setting: 2 to 32 psi (14 to 22 bar). If another setting is required, please state in clear text. Relieving the load on port to the reservoir results in a zero stroke ("standby") pressure which lies about 15 to 3 psi (1 to 2 bar) higher than the differential pressure p). No account is taken of system influences. Controller data Data pressure control DR, see page 12. Maximum flow deviation measured with drive speed n = 15 rpm. NG / 63 qv max gpm (l/min) (.5) (.9) (1.) (1.8) (2.5) (3.1) (3.1) Control fluid consumption DRF (DFR) maximum approx..8 to 1.2 gpm (3 to 4.5 l/min) DR (DFR1) maximum approx..8 gpm (3 l/min) Volume flow loss at q Vmax, see page 11.

15 RA-A 9273/12.11 A1VO eries 52/53 osch Rexroth Corp. 15/6 A... Pressure, flow and power control Pressure control equipped as DR(G), see page 12 (13). Flow control equipped as DRF, DR, see page 14. In order to achieve a constant drive torque with varying operating pressures, the swivel angle and with it the output flow from the axial piston pump is varied so that the product of flow and pressure remains constant. Flow control is possible below the power control curve. When ordering please state the power characteristics to be set ex works in clear text, e.g. 27 HP (2 kw) at 15 rpm. Controller data For pressure controller DR data, see page 12. For flow control FR data, see page 13. Controller data Maximum control fluid consumption, see page 14 Volume flow loss at q Vmax, see page11. tart of Torque T [lb-ft (Nm)] for size control [psi ((bar)] to 51 (1 to 35) 52 to 115 (36 to 7) 13 to 152 (71 to 15) 1535 to 23 (16 to 14) 245 to 3335 (141 to 23) ( ) ( ) ( ) ( ) ( ) (6-19) ( ) ( ) (52.1-7) ( ) Conversion of the torque values in power [kw]: P = (1-3) (3.1-59) ( ) ( ) ( ) (15-43) ( ) ( ) ( ) ( ) T 2p T n [HP (kw)] ( at 15 rpm) or P = 3.5 (6.4) 33. (6) (2-57) ( ) ) ( ) ( ) ( ) (24-68) ( ) ( ) ( ) ( ) Order code A5 A6 A7 A8 A9 [HP (kw)] (for speeds, see table on page 8) tatic curves and torque characteristic Circuit diagram (AD) with pressure cut-off Operating pressure p Torque T [lb-ft (Nm)] psi (bar) 435 (3) 362 (25) 29 (2) 2175 (15) 145 (1) 725 (5) () A5 1 1 Volume flow q v [%] A9 A8 A7 A6 q V A9 A8 A7 A6 A5 (see table on page 14) Circuit diagram (ADG) with pressure cut-off, remotely operated Circuit diagram (AD) with pressure and flow control 1 Not included in the delivery contents Not included in the delivery contents 2

16 16/6 osch Rexroth Corp. A1VO eries 52/53 RA-A 9273/12.11 EP Electro-proportional control Electro-proportional control makes a stepless and reproducible setting of the pump displacement possible directly via the swashplate. The control force of the control piston is applied by a proportional solenoid. The control is proportional to the current (for start of control, see table right). In a depressurized state, the pump is swiveled to its initial position (V g max ) by an adjusting spring. If the operating pressure exceeds 2 psi (14 bar), the pump will swivel from V g max to V g min without control by the solenoid (control current < start of control). A PWM signal is used to control the solenoid. EP.D: The pressure control regulates the pump displacement back to V g min after the set target pressure has been reached. A minimum operating pressure of 2 psi (14 bar) is needed for control. The necessary control fluid is taken from the high pressure. Circuit diagram EP.D Technical data, solenoid EP1 EP2 Voltage 12 V (±2 %) 24 V (±2 %) Control current tart of control at V g min 4 ma 2 ma End of control at V g max 12 ma 6 ma imiting current 1.54 A.77 A Nominal resistance (at 68 F (2 C)) 5.5 Ω 22.7 Ω Dither frequency 1 to 2 Hz 1 to 2 Hz Actuated time 1 % 1 % For protection rating, please refer to "ocket version" on page 55 Operating temperature range at valve -4 F to 239 F (-2 C to +115 C) Characteristic EP1/2 1 Hysteresis < 5 % Control current I [ma] EP1 EP2 Port for ervice line 2 uction line, 1,2 Case drain fluid ( 1,2 plugged) Control pressure,5 1, Displacement [%] V g min V g max Note The spring return at the controller is not a safety device Dirt contamination (contaminated hydraulic fluid, wear or residual dirt from system components) could cause the controller to stick in an undefined position. The volume flow of the axial piston unit will then no longer follow the commands of the operator. Check whether remedial measures for your application are needed on your machine in order to put the driven consumer in a safe state (e.g. immediate stop).

17 RA-A 9273/12.11 A1VO eries 52/53 osch Rexroth Corp. 17/6 EK Electro-proportional control with controller cut-off The variant EK... is based completely on the variant EP... (see page 16). In addition to the electro-proportional control function, a controller cut-off is integrated in the electric characteristic. The pump then swivels to V g max if the control signal is lost (e.g. cable break) and then works with the DRF settings (see page 14). The controller cut-off is only intended for short-term use and not for permanent use if the control signal is lost. If the control signal is lost, the pump swivel times will be reduced by the EK valve. A PWM signal is used to control the solenoid. A minimum operating pressure of 2 psi (14 bar) is needed for control. The necessary control fluid is taken from the high pressure. The V g max position is maintained by the force of the adjusting spring. To overcome the force of this spring, the solenoid must be subjected to excessive current (I res ). Observe the instructions regarding the project design on page 2 Circuit diagram EK.DF Technical data, solenoid EK1 EK2 Voltage 12 V (±2 %) 24 V (±2 %) Control current tart of control at V g min 4 ma 2 ma End of control at V g max 12 ma 6 ma imiting current 1.54 A.77 A Nominal resistance (at 68 F (2 C)) 5.5 Ω 22.7 Ω Dither frequency 1 to 2 Hz 1 to 2 Hz Actuated time 1 % 1 % For protection rating, please refer to "ocket version" on page 55 Operating temperature range at valve -4 F to 239 F (-2 C to +115 C) Characteristic EK Hysteresis < 5 % I res 1 Control current I [ma] I min I off EK1 EK2 I res 2 I min Port for ervice line uction line, 1,2 Case drain fluid ( 1,2 plugged) 2 Control pressure Note The spring return at the controller is not a safety device Dirt contamination (contaminated hydraulic fluid, wear or residual dirt from system components) could cause the controller to stick in an undefined position. The volume flow of the axial piston unit will then no longer follow the commands of the operator. Check whether remedial measures for your application are needed on your machine in order to put the driven consumer in a safe state (e.g. immediate stop).,5 1, Displacement [%] V g min I off EK1. EK2. I min [ma] 4 2 I max [ma] 12 6 I off [ma] < 3 < 15 I res [ma] > 12 > 6 V g max For changes in current, ramp times of > 2 ms must be observed.

18 18/6 osch Rexroth Corp. A1VO eries 52/53 RA-A 9273/12.11 EP(K).DF / EP(K).D EP(K) with pressure and flow control A hydraulic pressure flow control is superimposed on the electro-proportional control. The pressure control regulates the pump displacement back to V g min after the set target pressure has been reached. This function is super-imposed on the EP or EK control, i.e. the control-current dependent function is executed below the target pressure. etting range from 29 to 36 psi (2 to 25 bar). For the pressure flow control, see page 14. Pressure control has priority over electro-proportional control and flow control. Circuit diagram EP.DF 1 Not included in the delivery contents With flow control, the pump flow can be influenced in addition to pressure control. The pump flow is thus equal to the actual amount of hydraulic fluid required by the consumer. This is achieved using the differential pressure at the consumer (e.g. orifice). The EP.D or EK.D version has no connection between and the reservoir (load sensing). Please refer to the notes on page Circuit diagram EP.D 1 Port for ervice line uction line, 1,2 Case drain fluid ( 1,2 plugged) Control pressure Circuit diagram EP.D Not included in the delivery contents 2 1 Port for ervice line uction line, 1,2 Case drain fluid ( 1,2 plugged) 2 Port for ervice line uction line, 1,2 Case drain fluid ( 1,2 plugged) Control pressure

19 RA-A 9273/12.11 A1VO eries 52/53 osch Rexroth Corp. 19/6 EP(K).ED EP(K) with electro-hydraulic pressure control The ED valve is set to a certain pressure by a specified variable solenoid current. When a change is made at the consumer (load pressure), the position of the control piston will shift. This causes an increase or decrease in the pump swivel angle (flow) in order to maintain the electrically set pressure level. The pump thus only delivers as much hydraulic fluid as the consumers can take. The pressure can be set steplessly by the solenoid current. As the solenoid current signal drops towards zero, the pressure will be limited to p max by an adjustable hydraulic pressure cut-off (negative characteristic, e.g. for fan drives ). A PWM signal is used to control the solenoid. For further information and technical data of the solenoids for ED(ER) control please refer to pages 2 and 21. tatic current-pressure characteristic ED (negative characteristic) (measured with pump in zero stroke) psi (bar) 36 (25) Operating pressure P 2 (14) () Hysteresis static current-pressure characteristic < 45 psi (3 bar). tatic flow-pressure characteristic (at n= 15 rpm; t fluid = 12 F (5 C)) Operating pressure p psi (bar) 36 (25) 29 etting range (2) Max. adjustable control pressure Min. adjustable control pressure Amperage Flow q v [gpm (l/min)] I/ Imax Controller data tandby standard setting: 29 psi (2 bar). Other values on request. Hysteresis / pressure rise p 6 psi (4 bar) 1 Hysteresis / pressure rise pmax Circuit diagram EP.ED 1 2 Port for ervice line uction line, 1,2 Case drain fluid ( 1,2 plugged) Control pressure Circuit diagram EK.ED 1 2 Port for ervice line uction line, 1,2 Case drain fluid ( 1,2 plugged) Control pressure

20 2/6 osch Rexroth Corp. A1VO eries 52/53 RA-A 9273/12.11 ED Electro-hydraulic pressure control The ED valve is set to a certain pressure by a specified variable solenoid current. When a change is made at the consumer (load pressure), the position of the control piston will shift. This causes an increase or decrease in the pump swivel angle (flow) in order to maintain the electrically set pressure level. The pump thus only delivers as much hydraulic fluid as the consumers can take. The desired pressure level can be set steplessly by varying the solenoid current. As the solenoid current signal drops towards zero, the pressure will be limited to p max by an adjustable hydraulic pressure cut-off (secure fail safe function in case of a loss of power, e.g. for fan drives ). The response time characteristic of the ED-control was optimized for the use as a fan drive system. When ordering, state the type of application in clear text. Circuit diagram ED.. 1 tatic current-pressure characteristic ED (measured at pump in zero stroke negative characteristic) Operating pressure P Hysteresis static current-press. characteristic < 45 psi (3 bar) tatic flow-pressure characteristic (at n= 15 rpm; t fluid = 12 F (5 C)) Operating pressure P psi (bar) 36 (25) 2 (14) psi (bar) max 36 (25) etting range () Max. adjustable control pressure Min. adjustable control pressure Amperage I/ Imax Hysteresis / pressure rise p 2 (14) min Flow q v [l/min] min max Controller data tandby standard setting 29 psi (2 bar), other values on request. Hysteresis and pressure rise p < 6 psi (4 bar). Control flow consumption.8 to 1.2 gpm (3 to 4.5 l/min). 1 Port for ervice line uction line, 1 Case drain ( 1 plugged) Technical data, solenoid ED71 ED72 Voltage 12 V (±2 %) 24 V (±2 %) Control current Control begin at q v min 1 ma 5 ma End of control at q v max 12 ma 6 ma imiting current 1.54 A.77 A Nominal resistance (at 68 F (2 C)) Dither frequency 5.5 Ω 22.7 Ω 1 to 2 Hz 1 to 2 Hz Actuated time 1 % 1 % For protection rating, please refer to "ocket version" on page 55 Operating temperature range at valve -4 F to 239 F (-2 C to +115 C)

21 RA-A 9273/12.11 A1VO eries 52/53 osch Rexroth Corp. 21/6 ER Electro-hydraulic pressure control The ER valve is set to a certain pressure by a specified variable solenoid current. When a change is made at the consumer (load pressure), the position of the control piston will shift. This causes an increase or decrease in the pump swivel angle (flow) in order to maintain the electrically set pressure level. The pump thus only delivers as much hydraulic fluid as the consumers can take. The desired pressure level can be set steplessly by varying the solenoid current. As the solenoid current signal drops towards zero, the pressure will be limited to p min (stand by). Observe the project planning notes on page 2. Circuit diagram ER.. tatic current-pressure characteristic ER (measured with pump in zero stroke positive characteristic) psi (bar) 51 (35) Operating pressure P (25) Max. adjustable (15) control pressure Min. adjustable (5) control pressure () 1 I/I max Amperage Port for ervice line uction line, 1 Case drain ( 1 plugged) 1 Hysteresis static current-pressure characteristic < 45 psi (3 bar) Influence of pressure setting on stand by ± 3 psi (2 bar) tatic flow-pressure characteristic (at n= 15 rpm; t fluid = 12 F (5 C)) Operating pressure P psi (bar) max 36 (25) etting range 2 (14) min Flow q v [l/min] min max Hysteresis / pressure rise p Technical data, solenoid ED71 ED72 Voltage 12 V (±2 %) 24 V (±2 %) Control current Control begin at q v min 1 ma 5 ma End of control at q v max 12 ma 6 ma imiting current 1.54 A.77 A Nominal resistance (at 68 F (2 C)) Dither frequency 5.5 Ω 22.7 Ω 1 to 2 Hz 1 to 2 Hz Actuated time 1 % 1 % For protection rating, please refer to "ocket version" on page 55 Operating temperature range at valve -4 F to 239 F (-2 C to +115 C) Controller data tandby standard setting 2 psi (14 bar), other values on request. Hysteresis and pressure rise p < 6 psi (4 bar). Control flow consumption.8 to 1.2 gpm (3 to 4.5 l/min).

22 DIA 2.11 (53.5) 2.2 (56) (ø ) DIA.43 (ø 11) 22/6 osch Rexroth Corp. A1VO eries 52/53 RA-A 9273/12.11 Dimensions, size 1 DR Hydraulic pressure controller Centering flange AE version; series 52 efore finalizing your design request a certified max (11).43 (11).25 (6.4) Flange IO (73) (56).35 (9) 45 Y 1.94 (24) 5.83 (148) 7.9 (18) 4.19 (16.4) 5.28 (134) View Y clockwise rotation View Y counter-clockwise rotation (28.6) (28.6) 2. (51) 2. (51) (28.6) (28.6) 2. (51) 2. (51) DRG Pressure and flow control, remote controlled DFR / DFR1 Pressure and flow control 5.75 (146) 1.57 (4) 3.74 (95) 4.2 (12) max (11) 5.75 (146) 1.57 (4) 3.74 (95) 4.2 (12) max (11) (179) (179) For details of connection options and drive shafts, please refer to page 23

23 RA-A 9273/12.11 A1VO eries 52/53 osch Rexroth Corp. 23/6 Dimensions, size 1 Drive shaft plined shaft 3/4 in 11T 16/32DP 1) (AE J744) U plined shaft 5/8 in 9T 16/32DP 1) (AE J744) K Parallel shaft key efore finalizing your design request a certified 2) 3) 1/4-2UNC (3).35 (14).19 (5).87 (21) 1.5 (38) Centering 4) R12 x.26 DIN (23.8).62 (15.8) 1.25 (31.8) DIA (2.5) 1.13 (28.6) (ø ) Centering 4) R.12x.26 DIN (33).31 (8) 1.61(41) (4.76 ).187 Ports Designation Port for tandard ize 3) Maximum pressure tate [psi (bar)] 5) ervice line IO /16-12UNF-2;.79 (2) deep 46 (315) O uction line IO /16-12UNF-2;.79 (2) deep 75 (5) O Case drain fluid IO ) 9/16-18UNF-2;.47 (12) deep 3 (2) O 7) 1 Case drain fluid IO ) 9/16-18UNF-2;.47 (12) deep 3 (2) 7) Pilot pressure IO ) 7/16-2UNF-2;.45 (11.5) deep 46 (315) O 1) ANI 92.1a, 3 pressure angle, flat root, side fit, tolerance class 5 2) Thread according to AME 1.1 3) For the maximum tightening torques the general instructions on page 6 must be observed. 4) Coupling axially secured, e.g. with a clamp coupling or radially mounted clamping screw 5) Depending on the application, momentary pressure spikes can occur. Consider this when selecting measuring equipment and fittings. 6) The spot face can be deeper than as specified in the standard. 7) Depending on the installation position, or 1 must be connected (please refer to pages 56 and 57) O = Must be connected (plugged on delivery) = Plugged (in normal operation)

24 24/6 osch Rexroth Corp. A1VO eries 52/53 RA-A 9273/12.11 Dimensions, size 18 1) DR Hydraulic pressure controller Clockwise rotation, series 53 efore finalizing your design request a certified Port plate (83).31 (7.8).39 (1).96 (24.5) Flange IO DIA 3.25 (Ø82.55 ) (122) 2.48 (63) 2.83 (72) (61.5) (61.5).9 (2.5).43 (11) 3.27 (83) 6.14 (156) max. 7.2 (183) 4.19 (16.4) 5.35 (136) View 2.31 (58.7) DIA 1.26 (Ø32) DIA.79 (Ø2) 1.87 (47.6) Port plate 62 Flange IO (83).31 (7.8).39 (1).96 (24.5) (47.6) DIA.79 (Ø2) Detail Z.87 (22.2) 1.19 (3.2) 1.26 (32) View Y 1.3 (33).87 (22.2) DIA (Ø ) (Ø32) DIA (58.7) Y Z 5.63 (143) 6.7 (17) 1.19 (3.2) 1) Dimensions of service line ports turned through 18 for counter-clockwise rotation For details of connection options and drive shafts, please refer to page (56.5) 2.22 (56.5)

25 RA-A 9273/12.11 A1VO eries 52/53 osch Rexroth Corp. 25/6 Dimensions, size 18 Drive shaft plined shaft 3/4 in 11T 16/32DP 1) (AE J744) R plined shaft 3/4 in 11T 16/32DP 1)2) (AE J744) U efore finalizing your design request a certified plined shaft 5/8 in 9T 16/32DP 1) (AE J744) 3) 4) 1/4-2UNC (3).35 (14).2 (5).87 (21) 1.5 (38) Usable shaft length 3) 4) 1/4-2UNC-2.55 (14).2 (5).83 (21) 1.5 (38) Centering 5) R.12 x.26 DIN (23.8).62 (15.8) 1.25 (31.8) Ports Designation Port for tandard ize 4) Maximum pressure [psi (bar)] 6) tate ervice line, fixing thread uction line, fixing thread AE J518 AME 1.1 AE J518 AME 1.1 3/4 in 3/8-16UNC-2;.75 (19) deep 1 1/4 in 7/16-14UNC-2;.79 (2) deep 46 (315) O 75 (5) O Case drain fluid IO ) 3/4-16UNF-2;.47 (12) deep 3 (2) O 8) 1, 2 Case drain fluid IO ) 3/4-16UNF-2;.47 (12) deep 3 (2) 8) Pilot pressure IO ) 7/16-2UNF-2A;.45 (11.5) deep 46 (315) O 1) ANI 92.1a, 3 pressure angle, flat root, side fit, tolerance class 5 2) plines according to ANI 92.1a, run out of spline is a deviation from standard 3) Thread according to AME 1.1 4) For the maximum tightening torques the general instructions on page 6 must be observed 5) Coupling axially secured, e.g. with a clamp coupling or radially mounted clamping screw 6) Depending on the application, momentary pressure spikes can occur. Keep this in mind when selecting measuring equipment and fittings 7) The spot face can be deeper than as specified in the standard 8) Depending on the installation position,, 1 or 2 must be connected (please refer to installation instructions on pages 56, 57) O = Must be connected (plugged on delivery) = Plugged (in normal operation)

26 26/6 osch Rexroth Corp. A1VO eries 52/53 RA-A 9273/12.11 Dimensions, size 18 DRG Pressure controller, remote controlled, series 53 EP.D. / EK.D. Electro-proportional control, series 53 efore finalizing your design request a certified max. 7.2 (183) 4.45 (113) 4.8 (122) 4.17 (16) 2.44 (62) (218.5) 4.45 (113) 4.8 (122) 4.17 (16) 2.44 (62) DRF/DR Pressure and flow control, series 53 EP.ED / EK.ED Electro-proportional control, series 53 max. 7.2 (183) 4.45 (113) 2.44 (62) (22) (122) 4.17 (16) 4.8 (122) 4.33 (11) 2 2 A.D. Pressure, flow and power control, series 53 ED7. / ER7. Electro-hydraulic pressure control, series (225) 4.45 (113) 2.44 (62) 8.42 (214) 4.8 (122) 4.45 (113) 4.17 (16) (122) 1) ) ER7.: 6.18 inches (157 mm) if using an intermediate plate pressure controller.

27 1.87 (47.6) DIA.79 (ø2) 2.31 (58.7) DIA 1.26 (ø32) DIA.79 (ø2) 1.87 (47.6) RA-A 9273/12.11 A1VO eries 52/53 osch Rexroth Corp. 27/6 Dimensions, size 28 1)2) DR Hydraulic pressure controller Clockwise rotation, series 52 efore finalizing your design request a certified Port plate 61/ (9).25 (6.3) Flange IO DIA.37 (9.5) (ø11.6 ) (12) 4.86 (123.5) 2.87 (73) 2.6 (66) (69).56 (14.3).31 (7.9) 1.6 (27) (17) max (29.5) View Port plate (146) 6.77 (172) View Port plate 61 Port plate (33) 1.3 (33) max (29.5) Detail Z 1.19 (3.2) 1.3 (33) 1.3 (33).87 (22.2).47 (12).37 (9.5) ) Flange IO (9).87 (22.2) View Y DIA 4. (ø11.6 ) -.54 (ø32) DIA (58.7) Y Z 1.6 (27) (16) 1.19 (3.2) 2.6 (66) 2.6 (66) 1) 2) Dimensions of service line ports turned through 18 for counter-clockwise rotation (please refer to page 28) Primary dimensions for pump apply for series 52 and 53

28 28/6 osch Rexroth Corp. A1VO eries 52/53 RA-A 9273/12.11 Dimensions, size 28 Drive shaft plined shaft 7/8 in 13T 16/32DP 1) (AE J744) R plined shaft 7/8 in 13T 16/32DP 1)2) (AE J744) K 5) Parallel keyed shaft efore finalizing your design request a certified 3) 4) 1/4-2UNC (33.1).63 (16).2(5).99 (25.1) 3) 4) 1/4-2UNC-2 Usable shaft length.63 (16).2(5).99 (25) 1.61 (41) DIA (ø ) ( ) (33.3) (2.5) 1.13 (28.6) 1/4-2UNC-2 3)4).63 (16) 1.62 (41.3) DIA.98 (ø25).259 ( ) (41) C 5) Tapered with woodruff key (IO 319-1) DIA.749 (19.24) DIA DIA.863 (21.91) ( ) 5/8-18UNF-2A 3).75 (19) (3 -,2 ).87 (22) A.16 (4).57 (14.4) 2.19 (55.6) ( ) Taper 125:1 ection A ( ) ( ) Ports Designation Port for tandard ize 4) Maximum pressure [psi (bar)] 6) ; Port plate 61/62 ervice line, fixing thread AE J518 AME 1.1 3/4 in 3/8-16UNC-2; 75 (19) deep 46 (315) O ; Port plate 64 threaded IO ) 1 1/16-12UNF-2; 79 (2) deep 46 (315) O ; Port plate 61/62 uction line, AE J /4 in 75 (5) O fixing thread AME 1.1 7/16-14UNC-2;.79 (2) deep ; Port plate 64 threaded IO ) 1 5/8-12UN-2;.79 (2) deep 75 (5) O Case drain fluid IO ) 3/4-16UNF-2;.47 (12) deep 3 (2) O 9) 1, 8) 2 Case drain fluid IO ) 3/4-16UNF-2;.47 (12) deep 3 (2) 9) Control pressure IO ) 7/16-2UNF-2;.45 (11.5) deep 46 (315) O 1) ANI 92.1a, 3 pressure angle, flat root, side fit, tolerance class 5 2) plines according to ANI 92.1a, run out of spline is a deviation from standard. 3) Thread according to AME 1.1 4) For the maximum tightening torques the general instructions on page 6 must be observed. 5) Only series 52 6) Depending on the appl., momentary press. spikes can occur. Consider this when selecting measuring equipment and fittings. 7) The spot face can be deeper than as specified in the standard. 8) Only series 53 9) Depending on the installation position,, 1 or 2 must be connected (please refer to installation instructions on pages 56, 57) O = Must be connected (plugged on delivery) = Plugged (in normal operation) tate

29 4.21 (17) 4.21 (17) RA-A 9273/12.11 A1VO eries 52/53 osch Rexroth Corp. 29/6 Dimensions, size 28 DRG Pressure controller, remote controlled, series 52 EP.D. / EK.D. Electro-proportional control, series 53 efore finalizing your design request a certified max (29.5) 5.49 (139.5) 4.86 (123.5) 2.48 (63) 8.82 (224) 5.51 (14) 5.12 (13) 4.49 (114) 2.48 (63) DFR / DFR1 Pressure and flow control, series 52 EP.ED / EK.ED Electro-proportional control, series 53 max (29.5) 5.49 (139.5) 4.86 (123.5) 2.48 (63) 9.45 (24) 5.12 (13) 4.6 (117) A.D. Pressure, flow and power control, series 53 ED7. / ER7. Electro-hydraulic pressure control, series (231) 5.51 (14) 5.12 (13) 4.49 (114) 2.48 (63) (24) 5.12 (13) 1) 2 1 1) ER7.: 6.26 inches (159 mm) if using an intermediate plate pressure controller. For details of connection options and drive shafts, please refer to page 28

30 DIA 1.5 ø38 DIA.98 (ø25) 3/6 osch Rexroth Corp. A1VO eries 52/53 RA-A 9273/12.11 Dimensions, size 45 1) DR Hydraulic pressure controller Clockwise rotation, series 52 efore finalizing your design request a certified Port plate (9.5).25 (6.3) 3.9 (99).47 (12) 1.18 (3) 45 Flange IO DIA (Ø11.6 ) (131.5) 3.7 (78).56 (14.3) 3.3 (77) 2.7 (68.5) 7.44 (189) max (22.5) 5.75 (146) 6.77 (172) Port plate (9.5).25 (6.3) max (22.5) 5.93 (15.5) 3.9 (99).47 (12) 1.18 (3) View Flange IO DIA (Ø11.6 ) -.54 Port plate (178) 8.31 (211) DIA 1.5 (ø38) (35.7) 2.6 (52.4) DIA.98 (Ø25) Y Detail Z 1.3 (26.2) 2.75 (69.9) 1.41 (35.7) (26.2) 1.5 (38) View Y (38) 2.6 (52.4) Z 1.5 (38) 1.5 (38) 1) Primary dimensions for pump apply for series 52 and 53 For details of connection options and drive shafts, please refer to page 31, 32 Dimensions of service line ports turned through 18 for counter-clockwise rotation 3.54 (9) 3.54 (9)

31 RA-A 9273/12.11 A1VO eries 52/53 osch Rexroth Corp. 31/6 Dimensions, size 45 Drive shaft plined shaft 1 in 15T 16/32DP 1) (AE J744) R plined shaft 1 in 15T 16/32DP 1)2) (AE J744) U efore finalizing your design request a certified plined shaft 7/8 in 13T 16/32DP 1) (AE J744) 3) 4) 1/4-2UNC (38).63 (16).2 (5) 3) 4) 1/4-2UNC-2.63 (16).2 (5) 3) 4) 1/4-2UNC (33.1).63 (16).2 (5) 1.18 (3) 1.81 (45.9) Usable shaft length 1.16 (29.5) 1.81 (45.9).99 (25.1) 1.61 (41) W plined shaft 7/8 in 13T 16/32DP 1)2) (AE J744) K 5) Parallel keyed shaft Usable shaft length 3) 4) 1/4-2UNC-2.63 (16).2 (5).98 (25).9988 DIA 1. (ø ) ( ) (38.1) (2.2) 1.37 (34.9) 1/4-2UNC-2 3)4).63 (16) DIA.98 (ø25).259 ( ) (41) 1.81 (46) C 5) Tapered with woodruff key (IO 319-1).84(21.41) DIA 1in (25.4).99(25.16).13 (3.2).16 (4) 3/4-16UNF (28.6) A.56.12(3) (14.3) (19) (3) 2.12(53.9) 2.43 (61.8) ( ) Taper 125:1 ection A ( ) ( ) ) 2) 3) 4) 5) ANI 92.1a, 3 pressure angle, flat root, side fit, tolerance class 5 plines according to ANI 92.1a, run out of spline is a deviation from standard. Thread according to AME 1.1 For the maximum tightening torques the general instructions on page 6 must be observed. Only series 52