The Seal Bulk is a gasket that seals the gap between the Swing Gear and the Bearing. This prevents oil from leaking out, which could damage the bearing and cause the machine to overheat. The Seal Bulk helps to reduce friction between the Swing Gear and the bearing.Attributes:• Designed to conform to the surface of the Swing Gear and bearing, creating a tight seal• High resistance to ozone• Consistent and precise measurement of material hardnessApplications:The Seal Bulk also helps to protect the bearing from dirt and debris.