Axial piston variable pump A10V(S)O Series 31

1 Axial piston variable pump A10V(S)O Series 31. RE-A 92701. Edition: Americas Replaces: Size 18 (A10 VSO). Sizes 28 to 140 (A10VO). nominal pressure 4100 psi (280 bar). Maximum pressure 5100 psi (350 bar). Open circuit Features Contents variable pump with Axial piston rotary group in swash- Type code 2. plate design for hydrostatic drives in open circuit. Hydraulic fluids 4. The flow is proportional to the drive speed and Working pressure range 6. displacement. Technical data, standard unit 7. The flow can be infinitely varied by adjusting the swash- Technical data, high-speed version 8. plate angle. DG Two-point control, direct operated 12. 2 drain ports DR Pressure controller 13. Excellent suction performance DRG Pressure controller, remote controlled 14. Low noise level DFR / DFR1 / DRSC Pressure and flow controller 15. Long service life DFLR Pressure, flow and power control 17. Favorable power/weight ratio ED Electro-hydraulic pressure control 18. Versatile controller range ER Electro-hydraulic pressure control 19.

2 Short control time Dimensions, size 18 20. The through drive is suitable for adding gear pumps and Dimensions, size 28 23. Axial piston pumps up to the same size, , 100% Dimensions, size 45 27. through drive. Dimensions sizes 71 and 88 31. Dimensions, size 100 35. Dimensions, size 140 39. Dimensions, through drive 44. Overview of mounting options 48. Combination pumps A10VO + A10VO 49. Connector for solenoids 50. Electronic controls 50. Installation instructions 51. Project planning notes 54. Safety instructions 55. RE-A 92701 , Bosch rexroth AG. 2 A10V(S)O Series 31 | Axial piston variable pump Type code Type code 01 02 03 04 05 06 07 08 09 10 11 12 13. A10V(S) O / 31 V. Version 18 28 45 71 88 100 140. 01 Standard version (without code) . High-speed version (external dimensions are the same as the standard version) H. Axial piston unit 02 Swashplate design, variable , nominal pressure 4100 psi (280 bar), A10VS. maximum pressure 5100 psi (350 bar) A10V.

3 Operating mode 03 Pump, open circuit O. Size (NG). 04 Geometric displacement, see table of values on pages 7 and 8 18 28 45 71 88 100 140. Control device 05 Two-point control, direct operated DG. Pressure controller hydraulic DR. with flow controller hydraulic X-T open DFR. X-T plugged with flushing function DFR1. X-T plugged without flushing function DRSC. with flow and differential pressure control, electrically variable EF1). with pressure cut-off hydraulic remote controlled DRG. electrical negative control U = 12 V ED71. U = 24 V ED72. electrical positive control U = 12 V ER71. U = 24 V ER72. Pressure-flow power control DFLR. Series 06 Series 3, index 1 31. Direction of rotation 07 Viewed on drive shaft clockwise R. counter-clockwise L. Sealing material 08 FKM (fluoroelastomer) V. Drive shaft 18 28 45 71 88 100 140. 09 Splined shaft standard shaft S. ANSI similar to shaft S however for higher input torque R. reduced diameter, limited suitability for through drive U.

4 (see table of values, page 10). same as U , higher torque; limited suitability for through W. drive (see table of values, page 10). Mounting flange 10 ISO 3019-1 (SAE) 2-hole C. 4-hole D. 1) See data sheet 92709. Bosch rexroth AG, RE-A 92701 Axial piston variable pump | A10V(S)O Series 31 3. Type code 01 02 03 04 05 06 07 08 09 10 11 12 13. A10V(S) O / 31 V. Working port 18 28 45 71 88 100 140. 11 SAE flange ports according Fastening thread not for through drive 61. to J518 UNF; rear 91. Fastening thread for through drive 62. UNF; lateral top bottom 92. Through drive (for mounting options, see page 48). 12 Flange ISO 3019-1 Hub for splined shaft2). Diameter Diameter 18 28 45 71 88 100 140. without through drive N00. 82-2 (A) 5/8 in 9T 16/32DP K01. 3/4 in 11T 16/32DP K52. 101-2 (B) 7/8 in 13T 16/32DP K68. 1 in 15T 16/32DP K04. 127-2 (C) 1 1/4 in 14T 12/24DP K07. 1 1/2 in 17T 12/24DP K24. 152-4 (D) 1 3/4 in 13T 8/16DP K174). Connectors for solenoids3). 13 Without connector (without solenoid, with hydraulic control only, without code).

5 DEUTSCH - molded connector, 2-pin, without suppressor diode P. = Available = On request = Not available Notice Note the project planning notes on page 54. In addition to the type code, please specify the rel- evant technical data when placing your order. 2) Hub for splined shaft according to ANSI 3) Connectors for other electric components can deviate. 4) Only with mounting flange D. RE-A 92701 , Bosch rexroth AG. 4 A10V(S)O Series 31 | Axial piston variable pump Hydraulic fluids Hydraulic fluids The A10V(S)O variable pump is designed for operation with Notes on selection of hydraulic fluid HLP mineral oil according to DIN 51524. The hydraulic fluid should be selected such that the operat- Application instructions and requirements for hydraulic ing viscosity in the operating temperature range is within fluids should be taken from the following data sheets the optimum range ( opt see selection diagram). before the start of project planning: 90220: Hydraulic fluids based on mineral oils and Notice related hydrocarbons At no point of the component may the temperature be 90221: Environmentally acceptable hydraulic fluids higher than 240 F (115 C).

6 The temperature difference 90222: HFD hydraulic fluids (for permissible technical specified in the table is to be taken into account when data, see data sheet 90225) determining the viscosity in the bearing. If the above conditions cannot be maintained due to extreme operating parameters, please contact the respon- sible member of staff at Bosch rexroth . Viscosity and temperature of hydraulic fluids Viscosity Temperature Comment Cold start max 7400 SUS St -40 F (-40 C) t 1 min, without load (p 435 psi (30 bar)), n 1000 rpm (1600 mm2/s). Permissible temperature difference T 45 F (25 K) between Axial piston unit and hydraulic fluid Warm-up phase < 7400 to 1850 SUS = -40 F to -13 F Note the detailed information on operation with low tempera- (1600 to 400 mm2/s) (-40 C to -25 C) tures, see data sheet 90300-03-B. Continuous operation = 1850 to 60 SUS this corresponds, for VG 46 for example, to a temperature range (400 to 10 mm2/s) of +41 F to +185 F (+5 C to +85 C) (see selection diagram).

7 = -13 F to +230 F measured at port L, L1. (-25 C to +110 C) observe the permissible temperature range of the shaft seal ( T = approx. (9 F) K between the bearing/shaft seal and port L, L1). opt = 170 to 74 SUS Range of optimum operating viscosity and efficiency (36 to 16 mm2/s). Short-term operation min 50 SUS (7 mm2/s) t < 1 min, p < pnom Selection diagram Warm-up phase Maximum permissible viscosity for cold start [mm /s] [SUS]. 2. 1600 7400. 1000 4600. 600 2800. 400 1850. 200 930. VG 68. VG 46. VG. VG 32. VG 2. 10. 2. Viscosity v [mm2/s]. 0. 100 460. 60 280. 40 190. 36 170. Continuous operation Optimum operating viscosity range vopt 20 100. Optimum efficiency 16 82. 10 60. Minimum permissible viscosity for short-term operation 7 49. -40 -13 14 32 50 86 122 158 194 239 [ F]. -40 -25 -10 0 10 30 50 70 90 115 [ C]. Minimum permissible temperature for cold start Temperature [ C]. Bosch rexroth AG, RE-A 92701 Axial piston variable pump | A10V(S)O Series 31 5.

8 Hydraulic fluids Filtration of the hydraulic fluid Finer filtration improves the cleanliness level of the hydrau- lic fluid, which increases the service life of the Axial piston unit. A cleanliness level of at least 20/18/15 is to be maintained according to ISO 4406. At very high hydraulic fluid temperatures (194 F (90 C) to maximum 240 F (115 C)), cleanliness level 19/17/14. according to at least ISO 4406 is necessary. Please contact us if the above classes cannot be observed. RE-A 92701 , Bosch rexroth AG. 6 A10V(S)O Series 31 | Axial piston variable pump Working pressure range Working pressure range Pressure at working port B Definition nominal pressure pnom 4100 psi (280 bar) The nominal pressure corresponds to the maximum design pressure. Maximum pressure pmax 5100 psi (350 bar) The maximum pressure corresponds to the maximum working pressure within the Single operating period 2 ms single operating period. The sum of the single operating periods must not exceed the total operating period.

9 Total operating period 300 h Minimum pressure pB abs 145 psi (10 bar)1) Minimum pressure on the high-pressure side (B) which is required in order to (high-pressure side) prevent damage to the Axial piston unit. Rate of pressure change RA max 232060 psi/s Maximum permissible speed of pressure build-up and reduction during a pres- (16000 bar/s) sure change across the entire pressure range. Pressure at suction port S (inlet). Minimum pressure Standard 12 psi ( bar) Minimum pressure at suction port S (inlet) that is required in order to avoid dam- pS min absolute age to the Axial piston unit. The minimum pressure depends on the rotational speed and displacement of the Axial piston unit. Maximum pressure pS max 145 psi (10 bar). absolute2). Leakage pressure at port L, L1. Maximum pressure pL max 30 psi (2 bar) Maximum psi ( bar) higher than inlet pressure at port S, but not higher absolute2) than pL max. A case drain line to the reservoir is required. Rate of pressure change RA max Notice pnom Working pressure range valid when using hydraulic fluids based on mineral oils.

10 Please contact us for values for t other hydraulic fluids. Pressure p p Minimum permissible inlet pressure at suction port S. with speed increase In order to avoid damage to the pump (cavitation), a mini- mum inlet pressure must be guaranteed at suction port S. The minimum inlet pressure level depends on the rotational Time t speed and the displacement of the variable pump. Pressure definition t2 24 ( ) psi [psi (bar)]. Single operating period t1 tn Rotational speed n/nnom Maximum pressure pmax 20 ( ). Standard version nominal pressure pnom High speed version 17 ( ). Pressure p abs Inlet pressure pS. 15 ( ). 13 ( ). Minimum pressure (high-pressure side) 12 ( ). Displacement Vg/ Vg max Time t During continuous operation in overspeed over nnom, a Total operating period = t1 + t2 + .. + tn reduction in operational service life is to be expected due 1) Lower pressure is time-dependent, please contact us 2) Other values on request to cavitation erosion. Bosch rexroth AG, RE-A 92701 Axial piston variable pump | A10V(S)O Series 31 7.