6BG1 Used Diesel Engine Crankshaft 1 - 12310 - 448 - 0 For
Excavator Zx200 - 3
Specification
| Product name: Engine crankshaft | Model Number: 6BG1 |
| Application: Excavator | Part number: 1-12310-448-0 |
| Cylinder diameter: 102 | valve: 12 valve |
| Cylinder stroke: 125 | Number of Cylinders: 6 |
| Cooling: Water cooling | Injection: Direcet Injection |
Description
Crankshaft material
The steel alloys commonly used in high-strength crankshafts have
been chosen in what each designer considers to be the most
desirable combination of properties. The nominal chemistry of
crankshaft alloys discussed here. Medium-carbon steel alloys are
composed primarily of the element iron & contain smalls percentages
of carbons 0.25% to 0.45%, describes as “25 to 45 point” of
carbons, several A combination of alloying elements, a mixture of
which has been carefully designed to produce specific properties in
the target alloy, including hardness, surface, and core hardness,
ultimate tensile strength, yield strength, endurance limit fatigue
strength, ductility, impact resistance, corrosion resistance,
temper-inflammatory resistance.
Commonly used alloying elements in these carbon steels are
manganese, chromium, molybdenum, nickel, silicon, cobalt, vanadium,
and sometimes aluminum and titanium. Each of those elements adds
specific properties to a given material. The carbon contents are
the main determinant of the ultimate strength & hardness to which
such alloys can be heat treated.
Definition
The crankshaft is an essential part of the engine responsible for
converting reciprocating to rotational motions. In a simple
language, it is a shaft with a series of crank and crank pins,
which are attached to the connecting rod of the engine. Nowadays
the large engines have multi-cylinders and the crankshaft is
necessary to drive the pistons.
You cannot find such mechanism in single cylinder engines as they
have an only single piston in it. These parts are made with the
forging processes and need careful designing to reduce the effect
of vibrations.
How to use the crankshaft in engine?
Now diesel engines of whatever type, and whether water-cooled or
air-cooled, had fixed cylinders and a revolving crankshaft.
The piston rod transmits the power to the crankshaft, a long
rotating piece of steel.
Cast-iron pistons are used, and are connected to the crankshaft in
the same manner as with the Gnome and Le Rhone engines.
The crankshaft carried a pinion gearing with an internally toothed
wheel on the transmission shaft which carried the air-screw.
What are the functions of a crankshaft?
A crankshaft is one of the most important parts of an internal
combustion engine. The basic function of a crankshaft is to convert
the linear motion of a piston in rotary motion.The crankshaft
converts reciprocative motion to rotational motion. It contains
counter weights to smoothen the engine revolutions. There are two
types of crankshaft, the monolithic type, used for multi-cylinder
engines, and the assembled type fabricated from separate elements,
which is mainly used for motorcycles.
