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Calculation of lubricant consumption during bearing lubrication

In order to ensure the proper operation and long service life of rolling bearings, it is essential to cover the contact surface of the balls (or rollers) with a layer of lubricant to allow smooth running and to remove the heat generated by friction. Bearings are mechanical elements that reduce friction between two rotating or linear moving parts and transfer loads between machinery components. This type of bearing usually consists of an outer ring and an inner ring, between which a series of rolling elements (balls or rollers) are placed.

The lubricant values calculated with the previous formulas have the indicated value and in any case are valid for:
- Automatic Plant
- Continuous service
- Normal operating conditions

Please note that this volume may be affected by heavy-duty operating conditions and in any case by the following factors:
- Impact and/or Heating
- Speed of the part to be lubricated (number of revolutions or number of strokes per hour)
- Specific pressure between contact surfaces
- Presence of dirt, water ingress, contaminants

It is possible to apply corrections to the lubricant supply (service factor) in the presence of special conditions, due to environmental situations or specific to the part to be lubricated. Specifically:
- 0,5 for intermittent service
- 1.0 for continuous service (considered in this specification)
- 2.0 for medium-heavy continuous service
- 4,0 for heavy-duty continuous service

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