Bosch Rexroth | AZPG-22-028LCB20MB
AZPG-22-028LCB20MB
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The AZPG-22-028LCB20MB pump belongs to the High Performance AZPG Gear Pumps series by Bosch Rexroth and supplies fixed-displacement flow for hydraulic automation. Its geometric displacement is 28 cm³ per revolution, so each shaft turn delivers that volume of oil to the circuit. Continuous operation is supported up to 250 bar, short overloads are tolerated up to 280 bar, and 300 bar pressure peaks can be handled during brief transients. The unit rotates counter-clockwise, and this direction must align with the drive motor. A rectangular 105 mm mounting flange positions the housing in the installation, while M8 bolts threading 13 mm deep secure the pump against vibration.
The drive shaft uses a 5 × 7.5 mm key for positive torque transfer, and an M16 × 1.5 thread at the end accepts standard locknuts for axial retention. The maximum permitted speed at nominal pressure P2 is 3000 rpm, while the pump must not run below 500 rpm when viscosity is 25 mm²/s at P2; the same 500 rpm minimum applies at 12 mm²/s when pressure stays under 100 bar, guarding against insufficient lubrication. Fluid connections are made through a Square Flange coded 20, simplifying rigid pipe work. NBR sealing material retains oil and resists common hydraulic fluids. The housing weighs 10.5 kg, which allows manual handling during equipment assembly.
Technical Specifications
Flange Bolt Thread
M8 (13 mm deep)
Geometric Displacement
28 cm³/rev
Key Size
5 x 7.5 mm
Line Connection Type
Square Flange (20)
Max Continuous Pressure
250 bar
Max Intermittent Pressure
280 bar
Max Pressure Peak
300 bar
Max Speed (at P2)
3000 rpm
Min Speed (at P2, Nu=25 Mm2/s)
500 rpm
Min Speed (nu=12 Mm2/s, P<100 Bar)
500 rpm
Mounting Flange
Rectangular Ø105 mm
Rotation Direction
Counter-Clockwise
Sealing Material
NBR
Shaft End Thread
M16 x 1.5
Weight
10.5 kg
1620 Old Apex Road
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