Bosch Rexroth | AZPG-22-045RQC12MB-SO270
AZPG-22-045RQC12MB SO270
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The AZPG-22-045RQC12MB SO270 is produced by Bosch Rexroth as part of the High Performance AZPG Gear Pumps series and supplies fixed-displacement flow for hydraulic automation such as cylinder actuation and motor drives. The pump turns clockwise, a rotation direction that dictates port orientation in the circuit. A geometric displacement of 45 cm³ per revolution sets the volume delivered on each shaft turn, while an operating speed window from 500 to 2600 rpm lets system designers match flow to varying load demands. Continuous service at 250 bar is permitted, enabling use in high-pressure circuits without reducing service life. The housing is secured by an SAE J744 101-2 two-hole mounting flange, and a 101.6 mm pilot diameter centers the unit precisely on the drive pad to minimize misalignment.
During brief load surges the pump tolerates an intermittent pressure of 250 bar and withstands peaks up to 300 bar, giving extra margin against transient spikes. Fluid connections use a 1 1/16-12 UN-2B O-ring port for pressure and a 1 5/16-12 UN-2B O-ring port for suction, so common SAE adapters can be installed without additional sealing hardware. Each port provides at least 19 mm of thread engagement to prevent stripping under hydraulic load. NBR sealing material resists standard petroleum-based fluids and maintains elasticity through normal temperature ranges. A 6.35 × 25.4 mm shaft key transfers torque from the prime mover without slippage, and a 42 × 26 × 7 mm shaft seal retains oil while blocking contaminants from the bearing zone.
Technical Specifications
Direction Of Rotation
Clockwise
Flange Pilot Diameter
101.6 mm
Geometric Displacement
45 cm³/rev
Max Continuous Pressure
250 bar
Max Intermittent Pressure
250 bar
Max Pressure Peak
300 bar
Max Rotational Speed
2600 rpm
Min Rotational Speed
500 rpm
Mounting Flange
SAE J744 101-2 (B) 2-Hole
Port Thread 1
1 1/16-12 UN-2B (O-Ring)
Port Thread 2
1 5/16-12 UN-2B (O-Ring)
Port Thread Depth (min)
19 mm
Sealing Material
NBR
Shaft Key Size
6.35 × Ø25.4 mm
Shaft Seal Size
42 × 26 × 7 mm
1620 Old Apex Road
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