Where an alternative grease is being considered for an existing application, check the compatibility of the new grease with the current grease relative to the base oil (table 1) and thickener (table 2). These tables are based on grease composition and should only be used as guidelines. SKF recommends verifying miscibility with a grease expert and then testing the new grease in the application.
Before applying a new grease type, remove as much of the old grease as possible from the bearing arrangement. If the new grease is incompatible with the existing grease, or if the old grease contains a PTFE thickener or is silicone based, the bearings should be washed thoroughly using an appropriate solvent. Once the new grease is applied, monitor the bearings carefully to be sure that the new grease functions properly.