What are the pieces of the crankshaft?
Describe a piece of crankshaft.
1. ⚙️ Crankshaft (Crankshaft)
Is the core of the system.
Convert force from piston (up-down) → to rotation
It is an indentation.
2. 🔩 Connecting Rod
Link between the piston and the crankshaft.
Gain the force of the explosion in the cylinder.
3. 🟡 Rod bearing
It is between the connecting rod and the crankshaft.
Reduce friction. Make the spin slippery.
4. 🔵 Main bearing
Whole-axis crankshaft support
Attached to the Engine Block
5. ⚖️ Counterweight
Helps counterbalance, reduce vibration.
Make the engine spin more still.
6. 🟠 Main Journal
The point where the crankshaft touches the main bearing.
Is a smooth skin for spinning
7. 🔄 Crank Journal (Crank Pin)
Connecting rod mounting point
It is where the rotation of the eccentricity occurs.
8. ⚙️ Flywheel
At the end of the shaft.
Store rotational energy, keep the machine from stumbling.
Help when starting the machine (with the starting gear)
9. 🔩 Starter Ring Gear
Around the flywheel
Use the starter motor to rotate the engine at start.
10. 🔄 Harmonic Balancer
Reduce the vibration of rotation.
Damage crankshaft protection
🔁 Working principle (easy to understand)
The piston moves up-down (from combustion).
The connecting rod transmits force to the crankshaft.
The crankshaft rotated.
Transmit power to gear → wheels → moving car
📌 Brief summary
Crankshaft = "Pressure" Converter → "Rotation"
Bearing = allows slippery rotation
Gravity = oscillation reduction
Flywheel = Keep the rotational force continuous.
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