Bosch Rexroth | AZPF-12-004LNT20MB
AZPF-12-004LNT20MB
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The AZPF-12-004LNT20MB gear pump is part of the AZPF External High Performance Gear Pumps series from Bosch Rexroth and supplies pressurized flow for hydraulic automation circuits. Its geometric displacement is 4 cm³ per revolution, providing measured oil delivery for actuators that require small, repeatable volumes. A continuous pressure limit of 250 bar supports constant duty service, while an intermittent rating of 280 bar accommodates short overload periods and a 300 bar peak rating withstands brief pressure spikes that occur during rapid valve shifts. Counter-clockwise rotation matches left-hand prime movers used on many mobile machines. The 17 mm shaft diameter connects to standard couplings without additional bushings, and NBR sealing material contains mineral hydraulic fluid under varying temperature conditions. The assembly weighs 2.5 kg, allowing technicians to install or replace the unit without lifting equipment.
Mechanical integration relies on a four-bolt interface centered on a 52 mm seal-ring pilot; this mounting type maintains face sealing and keeps the housing aligned with the drive. A 60 mm bolt circle sets the location of the fixing points, and four M10 class 10.9 front cover bolts apply the clamping force needed to resist internal pressures without loosening. A pilot diameter of 36.5 mm guides the pump into position, and a 52.9 mm spigot locates the body concentrically to limit vibration during high-speed operation. An auxiliary M6 thread cut 13 mm deep offers an anchor for support brackets or grounding straps. These features simplify installation, ensure stable alignment, and help the pump maintain leak-free service in automated hydraulic systems.
Technical Specifications
Bolt Circle Diameter
60 mm
Direction Of Rotation
Counter-Clockwise
Front Cover Bolts
4 × M10 (Class 10.9)
Geometric Displacement
4 cm³/rev
Max Continuous Pressure
250 bar
Max Intermittent Pressure
280 bar
Max Peak Pressure
300 bar
Mounting Thread
M6 (13 mm Deep)
Mounting Type
4-Bolt Mounting ⌀52 mm (Seal Ring)
Pilot Diameter
36.5 mm
Sealing Material
NBR (M)
Shaft Diameter
17 mm
Spigot Diameter
52.9 mm
Weight
2.5 kg
1620 Old Apex Road
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