NSF H1 Lubrication
The use of NSF H1 food grade lubricant is critical in HAACP compliant facilities. Stainless steel insert bearings in KML Corrosion Resistant Mounted Bearing Units have sufficient NSF H1 high-grade lubricant installed after assembly. KML Corrosion Resistant Bearing Units normal grease content is about one third to one half of the internal space inside the bearing.
The performance of a bearing is greatly influenced by the quality and quantity of the lubricant. KML recommends an NSF H1 aluminum complex lubricant of NLGI category 2 with an anti-wear additive. In applications where re-lubrication will be performed, the grease zerk should be cleaned before attaching the grease supply tool to prevent pushing contaminants into the bearing. In order to avoid over filling, it is advisable to replenish the grease in small amounts. A hand grease gun should only require a few pumps per bearing for most sizes and conditions. Over lubrication is a major cause of bearing failure. Over filling can dislodge silicon seals and flingers from their mounting position thereby interfering with the rotation of the bearing or destroying the integrity of the seal.
KML Corrosion Resistant Bearing Units are lubricated with Mobil FM222 from the factory. The food service grade grease used for replenishment should checked for compatibility before application.
KML Corrosion Resistant Bearing Units are generally relubricatable from the factory. Depending on the operating conditions, relubrication on the bearings is not always necessary where environments are clean and temperatures are low. It is normal to see a small amount of grease at the edge of the flinger during and after operation. Food grade lubricants are subjected to contamination from frequent water, steam and chemical washdown. Due to these contaminants, the lubricant deteriorates and should be replenished. Lubrication intervals are a function of the environmental conditions coupled with the operating temperature. There is no substitution for recommendations by the equipment manufacturer and/or observation in actual plant operations to determine the appropriate lubrication cycles.