A French group that develops materials (cement, concrete, aggregates), products and services for construction players operates multiple sifting machines in their quarries.
Lubricating the bearings
of a sifting machine.
context
problem
Bearings within these machines reach temperatures of up to 90°C, necessitating bearing replacements every 6 months. This results in an annual cost of bearing replacements (including parts and labor) amounting to €18,700. Currently, a SHELL HD2 lubricant is used, but it is not sufficient to address the issues faced with bearing performance and longevity.
solution
Switching to Castrol Olista Longtime 2 grease while maintaining the same topping-up frequency, equivalent to every 50 hours, results in bearings operating at lower temperatures and significantly extending the interval between bearing changes.
results
- Lower bearing temperatures
- Change bearings as a preventive measure every 2 years
- Savings of 75% over 2 years
