Slow-moving, heavily loaded bearings can wear quickly because a lubricant film builds up less easily at low speed. When a heavy load is added, the film can become too thin to keep the surfaces fully apart, and metal-to-metal contact causes wear. A grease with a base oil viscosity that is too low for the application is a common contributing factor, alongside overload, contamination and misalignment.
Interflon Food Grease EP is designed for slow to moderate speed components under extremely high loads. Its base oil viscosity of 400 cSt at 104 °F helps maintain a load-bearing film in conditions where a lower base oil viscosity may not be sufficient.
MicPol® technology adds to this: micronised particles smooth out surface roughness, reducing the peaks where metal contact starts.
A higher viscosity is not always better, however. At higher speeds, a thick base oil can generate more heat and resistance. The grease has a Dn factor of 250,000 (bearing bore in mm multiplied by rpm), which indicates the upper speed limit it is suited to.
Not sure whether your bearing speed and load call for a higher-viscosity grease?
Ask a Technical Advisor, without obligations.
