Bosch Rexroth External Gear Pump - AZPN

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External gear pumps basically consist of one gear wheel pair and the housing with one front and one rear cover. The drive shaft drives one of the two gear wheels which again drives the second gear wheel in the opposite direction. Due to the rotation, hydraulic fluid is entrapped in the gear chambers and delivered along the housing from the suction port to the pressure port. The flow per rotation roughly corresponds to the total of the gear chamber volumes of the two gears.

The standard version 1X and 2X series pump sizes comprise: 20, 22, 25, 28, 32, and 36. The gear pump has a nominal pressure of up to 280 bar and a maximum displacement of 36 cm3. 

Some of the features of the gear pump include:

  • Fixed displacement.
  • Plain bearings for high loads.
  • Drive shafts according to ISO or SAE.
  • Combinations of several pumps possible.
  • Line connections: Connection flanges or screw-in threads.
  • Numerous design variations available.
Bosch Rexroth AZPN

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