Radial or journal bearings carry loads applied in a plane that is at a right angle to the axis of the shaft. Thrust bearings carry loads applied in the same direction as the axis of the shaft and restrict axial movement. Lubrication of bearings differs according to type. Babbitt-lined bearings are lubricated by a constant flow of lubricating oil. Stern tube and strut bearings, which are lined with hardwood, phenolic, or a rubber composition, are lubricated by a constant flow of seawater.
Bearings operate with a small lubricant clearance.
This clearance must always be maintained within specified limits. With proper clearances and proper lubrication, bearings will last for many years. The information in this training manual is of a general nature. Integrated Publishing's Official Web Page Click here for a current index of everything on this web site. All Rights Reserved.