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Rexroth A2F Fixed Axial Piston Hydraulic Pump & Motor


Uchida Rexroth Hydromatik A2F motor & A2F Pump
A2F5, A2F6, A2F10, A2F12, A2F23, A2F28, A2F45, A2F55, A2F63, A2F80, A2F107, A2F125, A2F160, A2F200, A2F250, A2F355, A2F500

A4VSO piston pump Rexroth A4VSO pump

Axial piston unit of bent axis design with fixed displacement, for use as either pump or motor in hydrostatic drives, in open or closed circuit.
If operated as a pump, the flow is proportional to the drive speed and displacement. If operated as a motor, the output speed is proportional to the swept volume and inversely proportional to displacement. The output torque increases with the pressure drop between the high and low pressure sides.
Features:
• Equivalent with original Rexroth same model.
• High performance rotary group with well-proven spherical control area with the advantages, self-centering low peripheral speed, high efficiency.
• Robust rolling bearing endure long service life.
• Drive shaft capable of adopting radial loading.

A2F

55

R

2

P

1


A2F= Fixed displacement Pump / Motor
55 =  Displacement (Vgmin ~Vgmax)
           9.4 ml/r         10
           11.6 ml/r       12
           22.7 ml/r       23
           28.1 ml/r       28
           44.3 ml/r       45
           54.8 ml/r       55
           63.0 ml/r       63
           80.0 ml/r       80
           107 ml/r       107
           125 ml/r       125
           160 ml/r       160
           200 ml/r       200
           225 ml/r       225
           250 ml/r       250
           355 ml/r       355
           500 ml/r       500

    R= Direction of rotation
          Clockwise           R
          Anti-clockwise     L
          Alternation         W

     2= Series 
          Series: size 10~160        1,2,3,4 
          Series: size 200~500      5
     P= Shaft end 
           Keyed shaft GB1096-79        P 
           Splined shaft DIN 5480          Z 
           Splined shaf GB3478.1-83    S
     1= Rear cover                               1~6

Hydraulic fluid
Before starting project planning, please refer to our data sheets RE 90220 (mineral oil), RE 90221 (environmentally acceptable hydraulic fluids) and RE 90223 (HF hydraulic fluids) for detailed information regarding the choice of hydraulic fluid and application conditions.
The fixed pump A2F is unsuitable for operation with HFA. If HFB, HFC and HFD or environmentally acceptable hydraulic fluids are being used, the limitations regarding technical data and seals mentioned in RE 90221 and RE 90223 must be observed.  
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 tank temperature. The hydraulic fluid should be chosen so that the operating viscosity in the operating temperature range is within the optimum range (νopt.) - the 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 optimum operating viscosity range (νopt; shaded area) this corresponds to the viscosity classes VG 46 or VG 68; to be selected: VG 68.
Please note: The case drain temperature, which is affected by pressure and speed, is always higher than the tank temperature. At no point in the system may the temperature be higher than 240°C (115°C) for sizes 5 to 200 or 195°F (90°C) for sizes 250 to 500.
If the above conditions cannot be maintained due to extreme operating parameters, we recommend flushing the case at port U (size 250 to 500).
Long-life bearing (sizes 250 to 500)  
For long service life and use with HF hydraulic fluids same external dimensions as pump with standard bearing. A long-life bearing can be specified. Flushing of bearing and case via port U recommended.
Shaft seal ring
The service life of the shaft seal ring is affected by the speed of the pump and the case drain pressure. It is recommended that the average, continuous case drain pressure at operating temperature 45 psi (3 bar) absolute not be exceeded (max. permissible case drain pressure to 90 psi (6 bar) absolute at reduced speed). Short-term (t < 0.1 s) pressure spikes of up to 145 psi (10 bar) absolute are permitted. The service life of the shaft seal ring decreases with an increase in the frequency of pressure spikes. The case pressure must be equal to or greater than the external pressure on the shaft seal ring.  


Uchida Rexroth Hydromatik A2F motor & A2F pump

A2F10R4P4

A2F10L4P4

A2F10W4P4

A2F55R3P1

A2F55L3P1

A2F55W3P1

A2F10R4P1

A2F10L4P1

A2F10W4P1

A2F55R2P3

A2F55L2P3

A2F55W2P3

A2F10R2P1

A2F10L2P1

A2F10W2P1

A2F55R2Z1

A2F55L2Z1

A2F55W2Z1

A2F10R2Z1

A2F10L2Z1

A2F10W2Z1

A2F63R3Z4

A2F63L3Z4

A2F63W3Z4

A2F12R4P4

A2F12L4P4

A2F12W4P4

A2F63R2Z4

A2F63L2Z4

A2F63W2Z4

A2F12R4P1

A2F12L4P1

A2F12W4P1

A2F63R3P1

A2F63L3P1

A2F63W3P1

A2F12R2P1

A2F12L2P1

A2F12W2P1

A2F63R2Z1

A2F63L2Z1

A2F63W2Z1

A2F12R2Z1

A2F12L2Z1

A2F12W2Z1

A2F80R3Z4

A2F80L3Z4

A2F80W3Z4

A2F23R3Z4

A2F23L3Z4

A2F23W3Z4

A2F80R2Z4

A2F80L2Z4

A2F80W2Z4

A2F23R2Z4

A2F23L2Z4

A2F23W2Z4

A2F80R3P1

A2F80L3P1

A2F80W3P1

A2F23R3P1

A2F23L3P1

A2F23W3P1

A2F80R2Z1

A2F80L2Z1

A2F80W2Z1

A2F23R2Z1

A2F23L2Z1

A2F23W2Z1

A2F107R3Z4

A2F107L3Z4

A2F107W3Z4

A2F28R3Z4

A2F28L3Z4

A2F28W3Z4

A2F107R2Z4

A2F107L2Z4

A2F107W2Z4

A2F28R2Z4

A2F28L2Z4

A2F28W2Z4

A2F107R3P2

A2F107L3P2

A2F107W3P2

A2F28R3P1

A2F28L3P1

A2F28W3P1

A2F107R2Z1

A2F107L2Z1

A2F107W2Z1

A2F28R2Z1

A2F28L2Z1

A2F28W2Z1

A2F160R3P2

A2F160L3P2

A2F160W3P2

A2F45R3Z4

A2F45L3Z4

A2F45W3Z4

A2F160R2P3

A2F160L2P3

A2F160W2P3

A2F45R2Z4

A2F45L2Z4

A2F45W2Z4

A2F160R3P1

A2F160L3P1

A2F160W3P1

A2F45R3P1

A2F45L3P1

A2F45W3P1

A2F160R2Z1

A2F160L2Z1

A2F160W2Z1

A2F45R2Z1

A2F45L2Z1

A2F45W2Z1

A2F250R5P2

A2F250L5P2

A2F250W5P2

A2F55R3Z4

A2F55L3Z4

A2F55W3Z4

A2F250R5P1

A2F250L5P1

A2F250W5P1

A2F55R2Z4

A2F55L2Z4

A2F55W2Z4

A2F355R5P2

A2F355L5P2

A2F355W5P1

A2F107R2Z2

A2F107L2Z2

A2F107W2Z2

A2F500R5P2

A2F500L5P2

A2F500W5P1



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