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Lubrication-free plastic slewing ring ball bearings in a bicycle wash system

Profile

What was needed?
Maintenance-free bearing of the washing brushes

Requirements:
Lubrication-free and maintenance-free, durable, corrosion-free, resistant to dirt and alkali

Industry:
Bicycle industry / washing plants

Success for the customer:
Reduction of downtimes

Bicycles can be cleaned with this system within a few minutes without much effort. This is pushed through the system and brushes take over the gentle but thorough cleaning with an eco-friendly organic soap. Due to a closed water circuit and multi-stage filter systems, water and operating costs are saved.

Problem

The use of conventional metallic ball bearings is out of the question due to the use of soap. The lubricant is washed out in the long run, the ball bearings run dry, and this leads to machine downtime. The metallic bearings in particular rely on external lubricants to ensure smooth operation of the system. The problem was to find a bearing for the washing brushes, which worked perfectly despite the constant presence of dirt and alkali to prevent the aforementioned downtime.

Solution

The manufacturer of the system used two xiros slewing ring ball bearings with stainless steel balls to mount the washing brushes. The bearing rings consist of the wear-resistant ball bearing material xirodur B180. This enables lubrication-free operation, low rolling friction and use at temperatures up to 80°C. In addition, the plastic ball bearings are corrosion-free, up to 50% lighter and up to 48% more cost-effective than comparable metallic solutions. A use with soap under water is harmless and increases the service life of the washing system.