Bosch Rexroth | AA11VLO145LE1S11R-NSD62K17AA11VLO145LE1S11R-NSD62
AA11VLO145LE1S/11R-NSD62K17+AA11VLO145LE1S/11R-NSD62
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The AA11VLO145LE1S/11R-NSD62K17+AA11VLO145LE1S/11R-NSD62 pump assembly belongs to the A11V Variable Pumps series and is produced by Bosch Rexroth for closed-loop hydraulic automation. It supplies fluid power with a displacement of 145.0 cm³ per revolution for each pump, allowing consistent volume delivery across the speed range. A minimum displacement of 0 cm³ per revolution enables complete flow cutoff during standby cycles. Continuous operation is supported up to 2500 rpm, which defines the maximum speed at full displacement. At that speed the pump produces a flow of 363 l/min per element, supporting high-demand actuators. The rotating group is configured for clockwise rotation, matching typical right-hand pump drives. The circuit can be designed around a nominal pressure of 350 bar to balance efficiency and component life. For overload events, the unit tolerates a maximum pressure of 400 bar, and the working port is rated to the same 400 bar so line components share the limit.
Fluid entry is through a 3 in suction port built to the SAE J518 pattern, ensuring compatibility with large low-pressure supply lines. Suction side pressure should not exceed 2 bar, preventing cavitation while maintaining inlet integrity. Case drainage leaves the housing via a port threaded M26×1.5, simplifying hose selection for return plumbing. That drain connection can handle pressures up to 10 bar, enough for back-pressure in common tank return circuits. System diagnostics are carried out on measuring port M1, which uses an M12×1.5 thread for standard test fittings. This measuring point is designed for pressures as high as 400 bar so gauges can read full working levels safely. The pump fastens to the prime mover with a SAE J744 4-hole (D) mounting flange, giving a rigid interface to the drivetrain. A through-drive hub sized 1 3/4 in with a 13-tooth 8/16 DP spline (code K17) transmits torque to auxiliary pumps without separate adapters.
Technical Specifications
Direction Of Rotation
Clockwise
Displacement (per Pump)
145.0 cm³/rev
Drain Port Max Pressure
10 bar
Drain Port Thread
M26×1.5
Max Flow @ 2500 Rpm (per Pump)
363 l/min
Max Speed (vg Max)
2500 rpm
Maximum Pressure
400 bar
Measuring Port M1 Max Pressure
400 bar
Measuring Port M1 Thread
M12×1.5
Minimum Displacement
0 cm³/rev
Mounting Flange
SAE J744 4-hole (D)
Nominal Pressure
350 bar
Suction Port S1 Max Pressure
2 bar
Suction Port S1 Size
3 in (SAE J518)
Through-drive Hub
1 3/4 in 13T 8/16 DP (K17)
Working Port Max Pressure
400 bar
1620 Old Apex Road
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