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What is the crankshaft

What is the crankshaft

  • Categories:News
  • Time of issue:2022-05-23 18:03
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What is the crankshaft

The crankshaft is the most important part in the engine. It receives the force from the connecting rod and converts it into torque, which is output through the crankshaft and drives other accessories on the engine to work.

crankshaft The crankshaft is subjected to the combined action of the centrifugal force of the rotating mass, the periodically changing gas inertial force and the reciprocating inertial force, so that the crankshaft is subjected to bending and torsional loads. Therefore, the crankshaft is required to have sufficient strength and stiffness, and the journal surface of the crankshaft needs to be wear-resistant, work evenly, and have good balance.

The crankshaft is the main rotating part of the engine. After the connecting rod is installed on the crankshaft, it can undertake the up and down (reciprocating) movement of the connecting rod and turn it into a cyclic (rotating) movement. The rotation of the crankshaft is the power source of the engine and the source power of the entire mechanical system.


The crankshaft is mainly made of carbon structural steel or ductile iron, and the crankshaft has two important parts: the main journal and the connecting rod journal. The main journal of the crankshaft is installed on the cylinder block, the connecting rod journal is connected with the big end hole of the connecting rod, and the small end hole of the connecting rod is connected with the cylinder piston, which is a typical crank-slider mechanism.

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8C1Q6303AA 13310-PR3-00 96144045 M96385403 24102260 484J-1005011 SMW251135 55569767 1040028300 8932819990
96385403 13310-P2E-010 25183163 90467348 25192922 23111-02812 1005011-E02 12578182 1040038500 8905304540
12220-65D00 24101606 E4G16-1005010 96336263 96348865 23111-21050 1005101XED30 AT4Z6303D 1005100-EG01 12221-75103
12220-65J01 24550938 472-1005011 23110-2B000 96352178 90466352 1005100XEC01 72RZ6-2GF00 SMD346022 94658971
12221-73001 55560953 371-1005011 23110-03AA1 96413067 480EJ-1005011 D4G15B-1005011 H16005-1200 PA006-0801 12221-71C00
24536836 473H-1005011 481H-1005011 1005015-E00 472FC-1005010 1005110XEG01B SMD326852 SMD346026 23110-4X000 ...

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