Thrust bearings are being discussed. Technician A says the thrust bearing surface facing the front of the engine shows the most wear. Technician B says the most common cause of thrust bearing failure is too little clearance. Who is correct?

Question

Quizplus · Accepted Answer

Technician B is correct. The most common cause of thrust bearing failure is too little clearance, also known as "tight thrust." Technician A's statement is incorrect as the thrust bearing surface facing the rear of the engine shows more wear due to the load being transferred in that direction.

Thrust Bearings Are Being Discussed