SKF
Lubrication (Mounted)
Lubrication selection for mounted units considers the grease type, initial fill, and relubrication interval. SKF units are supplied pre-greased, but many have regreasing facilities. The lubrication choice must match the speed factor, temperature range, water washout resistance, and food safety requirements. Proper lubrication selection directly extends bearing life and reduces maintenance frequency.
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Initial Grease Fill Optimisation
Factory‑filled grease volume prevents churning and seal blow‑out.
Relubrication Interval Calculation
SKF DialSet formulas for grease‑lubricated units.
Grease Nipple Accessibility
Housing design eases safe greasing during operation.
Purgeable Cavity Design
Old grease exits past seals, carrying contaminants out.
Lubricant Compatibility with Environment
Food‑grade, high‑temperature, or water‑resistant greases as needed.
Oil‑Lubricated Unit Options
For high‑speed or high‑temperature applications, oil sump units available.
Why Over‑Greasing Destroys Mounted Bearings
Excess grease forces the seals open, allows contamination in, and causes internal churning that rapidly overheats the bearing. SKF’s pre‑filled units contain exactly the right volume, and regreasing instructions specify purge volume to avoid over‑pressure. Following these guidelines prevents the most common lubrication‑induced failure in mounted units.
Grease Selection for Washdown Environments
In food and beverage plants, high‑pressure washdown jets force water into the bearing. SKF specifies aluminium‑complex greases with excellent water resistance and adhesion. Combined with composite or stainless housings and contact seals, this lubrication strategy keeps bearings alive despite daily chemical cleaning.