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The AZPF-12-008RRR12MA gear pump belongs to the AZPF External High Performance Gear Pumps series produced by Bosch Rexroth for hydraulic automation tasks such as actuator supply and circuit pressurization. It rotates clockwise so it matches power units with right-hand drive orientation. The geometric displacement of 8 cm³ per revolution delivers a fixed volume that simplifies flow calculation in proportional valve groups. Continuous duty is supported up to 250 bar, allowing the pump to maintain system pressure in mobile or industrial units without overstressing the housing. A permissible speed of 4000 rpm at port P2 lets designers pair the unit with high-speed electric or combustion engines while staying within volumetric efficiency limits. The 2-bolt Ø82.55 mm mounting flange defined by SAE J744 82-2 A provides direct attachment to standard pump brackets, and an overall weight of 3.3 kg eases handling during service.
For transient conditions the pump accepts 280 bar intermittently, and brief peaks may reach 300 bar to accommodate shock loads from directional changes. Lowest recommended speed is 500 rpm when line pressure is below 100 bar, so flow remains stable during idle or cold-start cycles. Power transmission uses a spline that follows ANSI B92.1 9T 16/32; the usable length of 21.8 mm ensures full tooth engagement with matching shafts. Fluid connections follow the UN thread format prescribed by ISO 11926-1 and ASME B1.1, providing compatibility with common tube fittings. Both the pressure and suction ports share a 7/8-14 UNF-2B thread cut 16 mm deep, simplifying hose selection and inventory. NBR sealing material is employed to resist standard hydraulic oils and limit external leakage across the housing joints.
Direction Of Rotation
Clockwise
Geometric Displacement
8 cm³/rev
Max Continuous Pressure
250 bar
Max Intermittent Pressure
280 bar
Max Peak Pressure
300 bar
Max Speed At P2
4000 rpm
Min Speed (p<100 Bar)
500 rpm
Min Usable Spline Length
21.8 mm
Mounting Flange
2-Bolt Ø82.55 mm (SAE J744 82-2 A)
Port Standard
UN Thread (ISO 11926-1/ASME B1.1)
Pressure Port Thread
7/8–14 UNF-2B (16 mm deep)
Sealing Material
NBR
Spline Standard
ANSI B92.1 9T 16/32
Suction Port Thread
7/8–14 UNF-2B (16 mm deep)
Weight
3.3 kg
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