What is the position of the thrust bearing?
The thrust bearing is most often placed at the second main bearing from the rear of the engine.
Which way do thrust bearings face?
The grease filled opening always face toward the head block/main shaft. The photo in the manual, is showing the back side of the thrust bearing, that is facing the blades. Example 1 photo showing back of bearing: The front side of the thrust bearing, where the grease goes, is facing the head block/main shaft.
Which bearing is used for misalignment?
spherical roller bearing
Standard spherical bearings are designed to accommodate misalignment up to ±1.5°. Rollers of a spherical roller bearing lie at an angle relative to the axis of the bearing.
How do you check thrust bearing clearance?
Mount a magnetic base to the engine and set the dial indicator to read off the crank snout. Gently pry the crank all the way forward and zero the gauge. The crank should move with very little effort and the dial indicator will read the clearance. In this case, we only have 0.002-inch so the thrust will need massaging.
What does the thrust bearing control?
Thrust bearings support the axial thrust of both horizontal and vertical shafts. The functions are to prevent the shaft from drifting in the axial direction and to transfer thrust loads applied on the shaft.
How does a thrust bearing work?
Thrust bearings are bearings with balls as rolling elements that are designed to absorb axial, i.e. thrust, forces. They absorb axial forces in the axial direction of the shaft.
What type of bearing is self aligning?
The bearings are self-aligning like spherical roller bearings or CARB bearings. Self-aligning ball bearings generate less friction than any other type of rolling bearing, which enables them to run cooler even at high speeds.
What happens if my thrust bearing goes?
If there’s too little thrust clearance, the thrust bearing surfaces can’t maintain a sufficient oil film and will overheat and be destroyed, potentially allowing the crankshaft’s main journal fillets to walk into the saddle and cap areas, quickly resulting in severe crank damage.
What is thrust clearance?
The purpose of thrust bearing end play is to provide axial clearance between the thrust collar and the thrust bearing assemblies. End play is the total distance the shaft can move between the two thrust bearings and is sometimes called float, thrust bearing clearance or axial clearance.