Mechanical Engineering - Automobile Engineering - Discussion

2. 

The portion of a crankshaft which rests on cylinder block is called main journal.

[A]. Yes
[B]. No

Answer: Option A

Explanation:

No answer description available for this question.

Jass said: (Jun 29, 2013)  
Yes, crank shaft rotates in aligned on cylinder block.

Avinash Kumar Shukla said: (Jul 10, 2013)  
Main journal of shaft is that which transmit the power from source.

Mukul Dhurandhar said: (Feb 20, 2014)  
What is main journal?

Abhishek Dubey said: (Feb 26, 2014)  
The portion of the crankshaft which rests on the cylinder block.

Pradnya Dhainje said: (Apr 6, 2014)  
Means the portion of the crankshaft which rests on the cylinder block.

Muthamil said: (Apr 18, 2014)  
What is main journal ?

Anil Yadav said: (Jun 12, 2014)  
Ya it means which transmit the source power.

Satish said: (Jul 1, 2014)  
Crankshaft rotate aligned with cylinder block, so its transmit the power from source.

The shaft that transmit power from source is known as main journal.

Abhilash Dubey said: (Dec 16, 2014)  
Mainly there are two type of Journal in Crankshaft:

1) Main Journal.
2) Rod Journal.

Journal at the Connecting Rod End is called Rod Journal.

And space between each Rod journal which sit on the cylinder block is called Main Journal. It is attached with thrust bearing.

Jas said: (Feb 17, 2015)  
@Abhilash.

What type of thrust bearing is used here?

Sukanth Aj said: (Feb 21, 2015)  
I need more detail about main journal. Can you explain it?

Satyanand Tiwari said: (Aug 10, 2015)  
Main journal of shaft is that which transmit the power from source.

Ramesh said: (Oct 26, 2015)  
What is the difference between main journal, rod journal, and thrust bearing any one explain it?

Kosoko said: (Dec 14, 2015)  
The centrally located coaxial cylindrical journal known as the main journal and the offset cylindrical crankpins known as the rod journal form the basic parts of the crankshaft.

The main journal rest on the block rotating about in a fixed point around the main bearing. The rod journal is connected to the connecting rod through the rod bearing and thus revolves as the connecting rod moves up and down.

Pradeep Kumar Mohanty said: (Jun 27, 2016)  
What is crank shaft & tell its function?

Panjarajad said: (Sep 15, 2016)  
Yes, the crankshaft rotates in aligned on the cylinder block.

Kolli Kishore said: (Jan 3, 2017)  
The power from the piston is transmitted to the crankshaft with the help of connecting rod.

The connecting rod can be termed as a rod journal and crankshaft called as the main journal.

Kolli Kishore said: (Jan 3, 2017)  
The power from the piston is transmitted to the crankshaft with the help of connecting rod.

The connecting rod can be termed as a rod journal and crankshaft called as the main journal.

Abdul Sattar said: (Jun 10, 2017)  
Carnkshaft to motion cylinder block.

Govind Deshmukh said: (Aug 6, 2017)  
Yes, crankshaft rotates in aligned on cylinder block.

Rajkumar Ahirwar said: (Aug 18, 2017)  
Yes, I am not understanding this. Explain it clearly.

Sachin C T said: (Dec 14, 2017)  
No, the cylinder block rests on the crankshaft.

Not the crankshaft rests on the cylinder block.

Muthu said: (Feb 11, 2018)  
It transmits power from source.

Nithish said: (May 1, 2019)  
Thanks all for explaining.

Prasanta Biswal said: (Nov 1, 2019)  
What is main journal?

Umeshrt99 said: (Dec 23, 2019)  
The centrally located coaxial cylindrical journal known as the main journal and the offset cylindrical crankpins known as the rod journal form the basic parts of the crankshaft.

The main journal rests on the block rotating about at a fixed point around the main bearing. The rod journal is connected to the connecting rod through the rod bearing and thus revolves as the connecting rod moves up and down.

Mutegewilly said: (Mar 12, 2020)  
How do main journal works during its process of mechanism?

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