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Radial deep groove ball bearings

xiros radial deep groove ball bearings

The single-row xiros deep groove ball bearings are plastic ball bearings and belong to the roller bearing family. What are deep groove ball bearings anyway? For the most part, they are used to support radial loads, usually at high speeds. In exceptional cases, they are also suitable for supporting low axial forces. This is made possible by the close contact of the rolling elements with the grooves of the bearing.

Our deep groove ball bearings to DIN 625 do not require any additional lubricating greases or oils, are low-maintenance and, like other rolling bearings, consist of four components. However, the two races - consisting of an inner ring and outer ring - are available in different materials to meet a wide range of customer requirements. The cage of the bearing must also be adapted to the respective environmental conditions. Our ball bearings are equipped with stainless steel, glass, polymer or ceramic balls.

special part made of plastic

Deep groove ball bearing special parts

From the idea to the customised solution: Your deep groove ball bearing in the shape, quantity and material of your choice.

test laboratory for plastic ball bearings

Deep groove ball bearing test rig in the test laboratory

We always put our plastic ball bearings through their paces in the largest test laboratory in the industry.

Deep groove ball bearing design

Structure of deep groove ball bearing

Outer and inner ring:

The suitability of a plastic ball bearing in accordance with DIN 625 is decisively determined by the materials of the two races. These are made from tribopolymers in order to maximise the service life and minimise the coefficient of friction. Various materials are available to choose from. They differ in terms of permissible temperature, media resistance and cost.

Cages:

The material of the bearing cage must also match the application. These materials are also very different in terms of chemical resistance and temperature. As part of the xiros-bearing delivery programme, the cages are already perfectly matched to the materials of the outer and inner rings.

Balls:

The ball materials differ the most. In addition to stainless steel, glass, plastic and ceramic are also used. This alone results in a big difference in mass, which in turn has an influence on running smoothness, weight and media resistance. Stainless steel balls are cost-effective, resistant to chemicals, but have the highest weight. Glass balls should be selected if freedom from metal is important. They are also very resistant to chemicals and have a medium weight. Polymer balls have decisive advantages in terms of weight and quiet running behaviour. Depending on the plastic, polymer balls also have excellent chemical resistance.

Other types of ball bearings:

  • Outside crowned rollers that can run directly on a profile
  • Profile rollers, e.g. B. for thread deflections
  • Thrust bearings  (special deep groove ball bearings for axial loads) and ball bearing slewing rings to support axial loads
  • Multi-axis bearings for linear and radial movements
  • Flange bearings, e.g. for installation in pipe ends (also for support/deflection rollers)
  • Double-row/two-row bearings for absorbing higher forces

Where are deep groove ball bearings used?

Despite underwater use, the installed plastic ball bearings still function flawless without failures. The reason lies in the Lubrication-free and the Corrosion-resistant. Conventional metal roller bearings were out of the question, as they are dependent on constant lubrication.

Go to application
Deep groove ball bearings in a pool cleaner

The customer needed an alternative to metal for the mechanical drive technology of a pellet stove, as it seized up immediately and was too loud in operation. The solution: Deep groove ball bearing made from xirodur® A500. These even allow short-term temperature applications of up to 315 °C, are considerably quieter and 100 % free of lubricating grease.

Go to application
Deep groove ball bearings in a pellet stove

You can find more successful application examples here

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Hennlich OOD | Хенлих ООД+359 32 621929Write e-mail

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