“Choose Your Help Topic Below”
- Engine Bearing: How They Actually Work: Failure Warning Signs
- Engine Noise: Common Causes and Solutions
- Crankshaft Thrust Bearing Failure – Causes And Remedies
- Engine Bearing Clearance – Is Way More Important Than You Think
- Engine Noises – Where Are They Coming From – Are They Bad
- Oil Consumption Has Many Causes, But, Worn Bearings Add To It
- Engine Bottom End Parts – Know The Parts Inside Your Engine
- Engine Knocking Ticking Noise – Is This The End Of Your Engine
- Automotive Engine Failure: Warning Signs And Major Causes
- Engine Issues – Early Warning Signs – Major Causes Explained
- Engine Bearing Replacement: Understanding the Basics
- Engine Knocking – Pinging – Rattling Noise – Most Common Causes
Engine bearings allow internal moving parts, such as the crankshaft, to spin freely by reducing friction between them. They do this by providing a low-friction surface. Typically with a thin layer of oil separating the moving journal and the bearing shell. They support the weight and rotational forces on the parts. And are made with specialized materials to minimize wear.
So, How Do They Work:
Reduced friction:
The primary function of an engine bearing is to minimize the friction. That occurs when two surfaces move against each other at high speeds.
Lubrication film:
A critical component of this is the lubricating oil. Which creates a thin, high-pressure film between the bearing and the rotating journal. As a result, this film keeps the parts from making direct contact.
Support and load transfer:
Bearings are designed to support the immense weight and forces placed on the crankshaft and other moving parts. Then, transfers these loads to the engine block or connecting rod.
Material design:
So, most engine bearings are made of a multi-layered structure. The outer layer is hard and durable, while the inner layers are softer. And allow any small particles or contaminants to become embedded. Consequently, preventing them from damaging the journal.
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