Fixed Displacement Pump A4FO, for open circuits
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Industrial Electric Drives Linear Motion and Service I Mobile Hydraulics I and Controls I Assembly Technologies I Pneumatics I Automation I Hydraulics Bosch Group Fixed Displacement Pump A4FO nput Power and Flow 7 Unit Dimensions, Size 40 9 Unit Dimensions, Size 71 10 Unit Dimensions, Size 125 11 Unit Dimensions, Size 250 12 Unit Dimensions, Size 500 13 Unit Dimensions,Through Drives 14 Permissible Input and Through Drive Rotation Torques 15 Installation and Commissioning Guidelines 16 - A4F0 axial piston fixed displacement pumps of swashplate design are used for hydraulic drives in open loop circuits. - Flow is proportional to the drive speed and to the displacement. - Good suction characteristic - Long service life - Pump combinations possible - Through drive for mounting other pumps Further Informations:

Bosch Rexroth AG | Mobile Hydraulics Ordering Code Fluid / Design Mineral oil, HFD-Fluid HFA-, HFB-, HFC-Fluid High-Speed Design Axial piston unit Fixed swashplate design Operation Pump in open circuits Size Displacement Vg (cm3) Series sizes 16...40, 125...500 size 71 clockwise anti-clockwise Direction of rotation viewed on shaft end Seals NBR (nitril-caoutchouc), shaft seal in FKM (fluor-caoutchouc) sizes 16...40 sizes 71...500 sizes 71...500 FKM (fluor-caoutchouc) Shaft end splined shaft SAE splined shaft SAE Splined shaft DIN 5480 parallel shaft, with key DIN 6885 Service line...

Mobile Hydraulics | Bosch Rexroth AG Fluid Axial piston unit Operation Size Series Index Direction of rotation Seals Shaft end Mounting flange Service line connections

Bosch Rexroth AG | Mobile Hydraulics Technical Data Fluid To review the application of A4FO pumps with the selected hydraulic fluid, detailed fluid compatibility and application data can be found in data sheets RE 90220 (mineral oil), RE 90221 (environmentally acceptable hydraulic fluids) and RE 90223 (fire resistant fluids, HF). When using HF- or environmentally acceptable hydraulic fluids possible limitations for the technical data have to be taken into consideration. If necessary please consult our technical department (please indicate type of the hydraulic fluid used for your...

Mobile Hydraulics | Bosch Rexroth AG Technical Data valid for operation with mineral oils Working pressure range inlet Absolut pressure at port S (suction port) pabs. min ____________________________________________________ 0,8 bar pabs. max _______________________________________________________ 2 bar Working pressure range inlet Absolut pressure at port S (suction port) pabs. min ____________________________________________________ 0,8 bar pabs. max _____________________________________________________ 30 bar Working pressure range outlet Maximum pressure at port A or B (pressure data to...

Bosch Rexroth AG | Mobile Hydraulics Technical Data Table of values (theoretical values, without considering ηmh and ηv: values rounded) Max. permissible speed (speed limit) with increased inlet pressure Case volume Moment of inertia, about drive axis Weight (approx.) values shown are valid for an absolute pressure (pabs) of 1 bar at the suction inlet S and when operated on mineral oil. 3) ∆p = 350 bar 3 % volumetric loss included H*: High-speed-design Maximum permissible speed (speed limit) Maximum permissible speed with increased inlet pressure pabs at suction port S (note: max. perm....

Mobile Hydraulics | Bosch Rexroth AG Input Power and Flow Size 250 500 operating pressure p (bar) Size 500 Total efficiency: Volumetric efficiency: operating pressure p (bar) (Fluid: hydraulic oil ISO VG 46 DIN 51519, t = 50°C)

Bosch Rexroth AG | Mobile Hydraulics Unit Dimensions, Sizes 16, 22, 28 Prior to finalising your design, please obtain a certified drawing. Clockwise operation (port plate is rotated via 180° for anti-clockwise operation) Connections B (A) Service line ports S SAE 3/4" 420 bar (6000 psi) high pressure series SAE 11/2" 35 bar (500 psi) standard series M18x1,5; 12 deep M14x1,5; 12 deep Suction port T1, T2 Case drain port, oil filling x3 Gauge port Shaft ends S pressure angle 30°, 13 teeth, 16/32 Pitch, flat root, side fit, tolerance class 5 ANSI B92.1a-1976

Mobile Hydraulics | Bosch Rexroth AG Unit Dimensions, Size 40 Prior to finalising your design, please obtain a certified drawing. Clockwise operation (port plate is rotated via 180° for anti-clockwise operation) Connections B (A) Service line ports S Suction port T1, T2 Case drain port, oil filling x3 Gauge port SAE 3/4" 420 bar (6000 psi) high pressure series SAE 11/2" 35 bar (500 psi) standard series M18x1,5; 12 deep M14x1,5; 12 deep Shaft ends T Splined shaft SAE 11/4"(SAE C) pressure angle 30°, 14 teeth, 12/24 Pitch flat root side fit, tolerance class 5 ANSI B92.1a-1976

Bosch Rexroth AG | Mobile Hydraulics Unit Dimensions, Size 71 Prior to finalising your design, please obtain a certified drawing. Clockwise and anti-clockwise operation Parallel shaft with key Shaft ends SAE 1" (high pressure series) SAE 1" (high pressure series) Connections B Service line port B1 2nd service line port (plugged with a flange) S Suction port R (L) Case drain port, oil filling T Oil drain (plugged) MB Gauge port operating pressure (plugged) Gauge port suction pressure (plugged) MS

Mobile Hydraulics | Bosch Rexroth AG Unit Dimensions, Size 125 Prior to finalising your design, please obtain a certified drawing. Clockwise and anti-clockwise operation Parallel shaft with key 14x9x80 DIN 6885 Shaft ends SAE 1 1/4" (high pressure series) SAE 1 1/4" (high pressure series) Connections B Service line port B1 2nd service line port (plugged with a flange) S Suction port R (L) Case drain port, oil filling T Oil drain (plugged) MB Gauge port operating pressure (plugged) MS Gauge port suction pressure (plugged) U Flushing port (bearing flushing) (plugged)

Bosch Rexroth AG | Mobile Hydraulics Unit Dimensions, Size 250 Prior to finalising your design, please obtain a certified drawing. Clockwise and anti-clockwise operation Connections B Service line port B1 2nd service line port (plugged with a flange) S Suction port R (L) Case drain port, oil filling T Oil drain (plugged) MB Gauge port operating pressure (plugged) MS Gauge port suction pressure (plugged) U Flushing port (bearing flushing) (plugged) (standard series) SAE 1 2" (high pressure series) SAE 1 1/2" (high pressure series) Parallel shaft with key Shaft ends