The company

The German company is specialized in special synthetic ball bearing manufacture, remarkably suitable for oxidative and corrosive environments.

HAKU is available to manufacture special ball bearing under specific customer request.

Synthetic Bearing

Plastic ball bearing is specifically useful when acids, solutions, corrosive substances in general and water can corrode a normal steel ball bearing.

Great chemical stability of plastic ball bearing allows a wide range of uses.

This kind of bearings are particularly suitable when watertight steel ball bearing can be damaged, increasing working risks.

Fields of application

  • Film Industry
  • Photographic Industry
  • Medical and Pharmaceutical Industry
  • Chemical Industry
  • Electroplating
  • Material handling and transportation
  • Windows and revolving doors
  • Rolling shutters and blinds
  • Textile Industry
  • Food & Beverage Industry
  • Electrical installations
  • Household appliances
  • Toy industry


Corrosion resistance, no need for maintenance and lubrication, chemical stability, good electrical insulation characteristics, silent operation, very low weight.

Working temperature

HAKU ball bearings can be used at a constant working temperature starting from -30°C up to +100°C.

For short periods of time even from -55°C up to + 140°C.

Resistance to chemical action

Strong organic acids, diluted acids, caustic and alkaline solutions, inorganic saline solutions, aliphatic hydrocarbons, water, sea water, ammonia, aldehydes, ketones, ether, glycols, photographic solutions, alcohol, mineral oils and greases, petrol, diesel fuel, heating oil.


HAKU ball bearings are manufactured with the following dimensional tolerances:

d +- 0,04 mm

D +- 0,03 mm

Materials used

The following are the materials available for our range of plastic bearings:

For Rings (internal and external):

  • POM – Polyoxymethylene – Acetal resin – Delrin
  • PE – Polyethylene
  • PPH – Polypropylene
  • PETP – Polyethylene terephthalate (PET, PETE, PET-P)
  • PTFE – Teflon
  • PA – Nylon
  • PEEK – Polyetheretherketone
  • PVDF – Polyvinyldenfluoride
  • PSU – Polysulfone

For Balls:

  • Soda-lime glass
  • Duran glass
  • 1.4401 stainless steel
  • 1.4571 stainless steel
  • POM
  • PP
  • PVC
  • PEEK
  • Ceramic
  • PVDF

For Cages:

  • PA
  • PPH
  • PEEK
  • PTFE
  • PVDF


You can download HAKU .pdf Catalogues here: