Komatsu
Crankshaft for Komatsu
This crankshaft is a central component for Komatsu internal combustion engines used in heavy machinery such as excavators, loaders, and industrial cranes.
Specifications
- Part number
- 6217311010
- Brand
- Komatsu
The crankshaft 6217311010 serves as a primary component within the internal combustion engine of Komatsu heavy machinery. This part converts the linear, reciprocating motion of the pistons into the continuous rotational movement required to generate power for the equipment. It is engineered to manage the forces of combustion and inertia, as well as the torsional and bending loads experienced during engine operation. The journals, which interface with the connecting rods and main bearings, are machined to precise tolerances to facilitate smooth operation and manage friction within the engine assembly.
This component is compatible with various Komatsu engine configurations found in excavators, wheel loaders, and industrial cranes. It is manufactured to meet the specific design requirements of the engine block and rotating assembly. Proper installation ensures that the engine maintains its intended power output and rotational stability during operation.
In an internal combustion engine, the crankshaft acts as the backbone of the power delivery system. By translating piston energy into torque, it drives the transmission or hydraulic pumps that power the machine functions. Maintaining the integrity of the crankshaft and its bearing surfaces is necessary for the overall mechanical efficiency of the engine.

