Bosch Rexroth | AZPF-12-019RQR12MA
AZPF-12-019RQR12MA
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The AZPF-12-019RQR12MA gear pump belongs to the AZPF External High Performance Gear Pumps series and is manufactured by Bosch Rexroth. It supplies hydraulic circuits with a displacement of 19 cm³ per revolution, delivering a fixed flow rate suited to compact power units. The pump tolerates viscosities between 12 and 800 mm²/s so it can start in cold oil and continue running in warmed, low-viscosity fluid without damage. Clockwise rotation aligns the inlet and outlet ports for standard right-hand engine drives. A parallel keyed drive shaft compliant with SAE J744 16-1 A couples directly to electric motors, and the 15.875 mm shaft diameter gives adequate bending strength for medium duty machines. The 4 × 20 mm key transmits torque while preventing relative motion between shaft and coupling.
During transient load peaks the drive shaft can accept up to 55 Nm, and the housing sustains intermittent pressures to 170 bar, allowing the pump to power cylinders and motors that cycle under variable demand. A two-bolt SAE J744 82-2 A mounting flange simplifies alignment on standard pump pads, while the 82.55 mm pilot centers the body to reduce vibration. M6 mounting screws seat in 13 mm deep threads, providing sufficient engagement without bottoming in shallow adapter plates. NBR sealing material resists common mineral oils and limits external leakage over a wide temperature band. The assembled unit weighs 3.9 kg, enabling single-person handling when installing or replacing pumps within mobile or industrial hydraulic systems.
Technical Specifications
Displacement
19 cm3/rev
Drive Shaft Max Torque
55 Nm
Drive Shaft Type
Parallel Keyed (SAE J744 16-1 A)
Maximum Intermittent Pressure
170 bar
Mounting Flange
2-Bolt SAE J744 82-2 (A)
Mounting Thread Depth
13 mm
Mounting Thread Size
M6
Pilot Diameter
82.55 mm
Rotation Direction
Clockwise
Sealing Material
NBR
Shaft Diameter
15.875 mm
Shaft Key Size
4 x 20 mm
Viscosity Range (permitted)
12 to 800 mm2/s
Weight
3.9 kg
1620 Old Apex Road
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