Bosch Rexroth | AZPG-22-040RQC40MB
AZPG-22-040RQC40MB
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The AZPG-22-040RQC40MB pump belongs to the High Performance AZPG Gear Pumps series and is manufactured by Bosch Rexroth. It delivers fixed-displacement flow for hydraulic automation circuits that demand consistent volume transfer from a compact housing. The geometric displacement is 40 cm³ per revolution, so one shaft turn moves 0.04 liters of fluid through the system. Rotation is clockwise, matching drive trains that spin to the right. A SAE J744 101-2 two-hole B-flange supplies the mounting interface and the drive torque is transmitted through a 6.35 × 25.4 mm key. Continuous operation can be carried out up to 250 bar without exceeding design limits, while the shaft can run as high as 2800 rpm for applications requiring high flow rates. Suction stability is maintained with a minimum absolute inlet pressure of 0.7 bar, and when fluid viscosity is 12 mm²/s and outlet pressure is below 100 bar the pump may be driven as slowly as 500 rpm.
Intermittent duty permits the same 250 bar working pressure, and brief peaks may reach 300 bar to accommodate load spikes without mechanical damage. When viscosity remains at 12 mm²/s and system pressure rises toward 180 bar, the permissible minimum speed becomes 1200 rpm to avoid cavitation. Two threaded holes simplify frame attachment: a 7/16-14 UNC hole with at least 18 mm depth and a 3/8-16 UNC hole of the same depth. Sealing between the shaft and housing is handled by an NBR lip ring that measures 42 × 26 × 7 mm, providing chemical resistance to common hydraulic oils and limiting leakage. These mechanical limits, pressure ratings, and attachment details define how the AZPG-22-040RQC40MB integrates into power units that need predictable flow under cyclical loads.
Technical Specifications
Direction Of Rotation
Clockwise
Flange Interface
SAE J744 101-2 (B) 2-Hole
Geometric Displacement
40 cm³/rev
Key Size
6.35 × Ø25.4
Max Continuous Pressure
250 bar
Max Intermittent Pressure
250 bar
Max Pressure Peak
300 bar
Max Rotational Speed
2800 rpm
Min Absolute Suction Pressure
0.7 bar
Min Speed (ν=12 Mm²/s, P<100 Bar)
500 rpm
Min Speed (ν=12 Mm²/s, P=180–p2)
1200 rpm
Mounting Thread 1
7/16-14 UNC (min 18 mm)
Mounting Thread 2
3/8-16 UNC (min 18 mm)
Shaft Seal Material
NBR
Shaft Seal Size
42 × 26 × 7 mm
1620 Old Apex Road
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