Heavy Duty Equipment Technician Red Seal Exam Prep · Question
What type of bearing is commonly used to support the crankshaft in a heavy-duty diesel engine?
Plain or sleeve bearings (also called shell bearings) are almost exclusively used for crankshaft main bearings and connecting rod bearings. They are designed to
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Question: What type of bearing is commonly used to support the crankshaft in a heavy-duty diesel engine?
Answer options: ✅ Plain (sleeve) bearings
- Tapered roller bearings
- Ball bearings
- Needle bearings
Correct answer: Plain (sleeve) bearings
Explanation: Plain or sleeve bearings (also called shell bearings) are almost exclusively used for crankshaft main bearings and connecting rod bearings. They are designed to operate with a hydrodynamic film of oil, providing excellent load-carrying capacity and vibration dampening.
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