Insert bearings in KML Greaseable Agricultrual Bearing Units have sufficient high-grade grease installed after assembly for initial equipment operation. KML Agricultrural Bearing units normal grease content is about one third to one half of the internal space inside the bearing.
The performance of an agricultural bearing is greatly influenced by the quality and quantity of the grease. KML recommends a lithium based NLGI #2 grease or an extreme pressure (EP) grease. In order to avoid over filling, it is advisable to replenish the grease in small amounts. In some applications over filling can increase heat build-up in the bearing during operation which can lead to premature failure. It may be desirable to fill the bearing cavity almost completely in some extremely dusty, dirty or moisture prone application conditions to assist in keeping these contaminants out. However, overfilling can dislodge seals and flingers from their mounting position thereby interfering with the rotation of the bearing or destroying the integrity of the seal.
KML bearings are lubricated with Chevron SRI#2 from the factory. The grease used for replenishment should checked for compatibility before application.
KML Greaseable Agricultrual Bearing Units are relubricatable. Depending on the operating conditions it is normal to see a small amount of grease at the edge of the flinger during and after operation. Grease deteriorates overtime 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 by equipment operators to determine the appropriate lubrication cycles in agricultural applications.