Bosch Rexroth | AZ-P-F-12-004-RAB01MB
AZ-P-F-12-004-RAB01MB
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The AZ-P-F-12-004-RAB01MB gear pump belongs to the AZPF External High Performance Gear Pumps series and is manufactured by Bosch Rexroth for hydraulic automation circuits requiring compact flow generation. It displaces 4 cm³ of fluid per revolution, allowing predictable volume output in fixed-displacement applications. The rotation is clockwise, so system designers must arrange inlet and outlet ports accordingly. Continuous duty is supported up to 250 bar, while the unit can withstand 280 bar for intermittent cycles to accommodate brief load surges. Short pressure spikes up to 300 bar are tolerated to protect the pump during transient events. A maximum operating speed of 4000 rpm at the rated pressure maintains flow without cavitation, and the lowest permissible speed is 600 rpm when viscosity is 12 mm²/s and pressure is below 100 bar to ensure lubrication during light-load startup.
A minimum speed of 700 rpm is required when viscosity reaches 25 mm²/s at rated pressure so that internal clearances remain filled with oil. The pump must turn at least 1200 rpm between 100 and 180 bar and not less than 1400 rpm from 180 bar up to rated pressure to preserve volumetric efficiency. Installation is aided by a 2-bolt 82.55 mm SAE J744 82-2 mounting flange, and its bolt circle radius of 47.5 mm keeps the housing centered on the drive pad. M6 threaded holes 13 mm deep secure the body to the mating surface. A shaft with a major diameter of 15.456 mm transfers torque from the prime mover, and a usable spline length of 21.8 mm provides adequate engagement for reliable power transmission.
Technical Specifications
Direction Of Rotation
Clockwise
Flange Bolt Circle Radius
47.5 mm
Geometric Displacement
4 cm³/rev
Max Continuous Pressure
250 bar
Max Intermittent Pressure
280 bar
Max Pressure Peaks
300 bar
Max Speed At P2
4000 rpm
Min Speed (p=100–180 Bar)
1200 rpm
Min Speed (p=180 Bar–p2)
1400 rpm
Min Speed (ν=12 Mm²/s, P<100 Bar)
600 rpm
Min Speed (ν=25 Mm²/s At P2)
700 rpm
Mounting Flange
2-Bolt Ø82.55 mm (SAE J744 82-2)
Mounting Thread
M6 (13 mm deep)
Shaft Major Diameter
15.456 mm
Usable Spline Length (min)
21.8 mm
1620 Old Apex Road
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