In roller bearings, loads and movements are transferred by means of rollers, arranged between an outer and inner race. If these metallic components make contact, undesirable friction, wear and damage is the result, which may lead to bearing failure.
In sliding bearings, the moving parts are in direct, sliding, linear contact. They can accept greater forces than roller bearings, but are more heavily impacted by wear due to the greater friction.
Service life and reliability of seals, roller and sliding bearings are to a large extent governed by the ambient conditions. Exceptional operating conditions and the ingress of contaminants in the bearing system lead to increased wear and thus to a reduction in the service life. The ambient and influencing factors can be divided into three groups:
- Dust and liquids in the bearing
- Oscillations and vibrations
- High bearing temperatures
These factors influence the service life and must be taken into consideration when calculating lubricant quantities. The higher the load or the influence of ambient conditions, the greater the quantity of lubricant required to guarantee optimal lubrication.
Advantages of automatic lubrication
- Protection against contaminant and liquid ingress reduces wear and increases the bearing service life
- Permanent supply of lubrication points with correct quantity of fresh lubricant
- Machine / PLC controlled lubrication with lubrication system monitoring (e.g. with perma STAR CONTROL)
- Maintenance and servicing works can be planned in advance
Automatic lubrication with perma lubrication systems
- Continuous, low-maintenance, long-term lubrication ensures uninterrupted production processes
- Maintenance runs can be reduced and planned long-term
- Reusable components minimise energy and material costs
Roller & sliding bearings
Roller and sliding bearings are used in all industry sectors. Only regular and efficient lubrication ensures that these components function correctly. Bearing damage, resulting from insufficient lubrication or contamination in the bearing, can result in consequential damage.