Vacuum cleaners

Vacuum Cleaner manufacturers are driven by consumer needs for increased efficiency, more compact and value for money devices. To meet this challenge producers have looked at ways to:

  • improve suction through increased motor power
  • introduce higher speed motors (above 50 000 rpm)
  • improve air circulation giving increased ventilation efficiency and more compact machines
  • reduce noise levels
  • review ways to reduce power consumption
  • reduce the number and weight of components so that machines can be lighter and more versatile in their uses
  • improve filtering systems to combat the growing concern about allergy sufferers

The effect of the higher power requirement has been an increase in temperature (above 110 deg. C). Friction torque therefore needs to be as low as possible.

Applications

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