Gear pumps BG0

The BG0 gear pump is a particularly compact and lightweight hydraulic pump for applications with small flow rates and limited installation space. Due to its small size and high efficiency, it is often used in small mobile devices, compact power units or control hydraulics. Despite its small dimensions, the BG0 series offers reliable flow, solid pressure resistance and a durable design. In the LöSi® webshop, you will find different variants, delivery volumes and connection configurations of the BG0 gear pump – ideal for precise, space-saving hydraulic solutions.

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What is a Gear Pump BG0?

The gear pump BG0 (often also referred to as Group 0.5 or micro pump) is the smallest standardized performance class in hydraulics. It was developed specifically for applications where installation space is extremely limited and only low flow rates are required.

Despite its petite dimensions, it works on the same robust displacement principle as its big sisters. It delivers precise volume flows in the milliliter range and is excellently suited for mini power units and control circuits where space is a scarce commodity.

 

Advantages of Our Gear Pumps Size BG0

Smaller does not mean weaker. The BG0 series is a master of efficiency in the smallest of spaces.

Technical highlights for compact mechanical engineering:

  • Extremely Compact: Minimal housing dimensions (usually light aluminum) for integration into the tightest devices.
  • Precision: Finest dosing of hydraulic oil (e.g., for laboratory applications or pilot controls).
  • Speed Resistant: Due to the small masses of the gears, very high speeds (electric motor direct drive) are often possible.
  • Economical: Inexpensive and reliable solution for low-pressure to medium-pressure applications (up to approx. 180 bar).
 

Typical Areas of Application for the Gear Pump BG0

The BG0 is the invisible helper in many everyday applications and special machines:

  • Mini Power Units: Drive of tail lifts, lift tables, or garage doors.
  • Medical Technology: Hydraulic adjustment of operating tables and patient chairs.
  • Lubrication Technology: Supply of machines with cooling or lubricating oil.
  • Pilot Control: Generation of pilot pressures for large valves.
 

Selection Criteria & Technical Data

With micro pumps, every millimeter counts. Pay particular attention to the shaft shape, as this often deviates from the standard with BG0.

Important parameters for your configuration:

  • Displacement: Typical are very small values from 0.25 cm³/rev to approx. 4 cm³/rev.
  • Shaft Shape: Do you need a tapered shaft (1:8) or a Tang drive (jaw coupling) for direct e-motor connection?
  • Flange: Pay attention to the matching hole spacing (often "Euro Flange BG0").
  • Direction of Rotation: Check the drive direction of your motor (Left/Right) to prevent damage to the seals.

Tip: Since BG0 pumps often sit in compact DC power units (direct current), please also check the speed limits of your electric motor.

 

Select & Order Gear Pump BG0 Now

Find the perfect solution for your mini hydraulics. Browse our range of precise BG0 pumps.

Benefit from technical advice on the design of mini power units. Select displacement and shaft now and order space-saving power directly online!

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