Typically, an excavator’s undercarriage consists of two sprockets. These sprockets are located on opposite ends of the undercarriage and work in conjunction with the track chains and other undercarriage components to facilitate the movement of the excavator.
The sprockets are positioned at the rear of the undercarriage, and their teeth engage with the track chain links. As the sprockets rotate, they drive the track chains, propelling the excavator forward or backward.
The two sprockets are designed to work together, with one located on the left side and the other on the right side of the undercarriage. This symmetrical arrangement ensures balanced and smooth movement of the excavator.
It’s important to note that the number of sprockets may vary depending on the specific excavator model and configuration. HITACHI DX370 Excavator Undercarriage Part Sprocekt manufacturer Some larger or specialized excavators may have additional sprockets, such as those equipped with multiple track chains per side or complex undercarriage systems. However, for most excavators, the standard configuration consists of two sprockets—one on each side of the undercarriage.
What are the main components of an excavator sprocket?
The main components of an excavator sprocket include:
Sprocket Body: The sprocket body is the main structure of the sprocket. It is typically made of high-strength steel or cast iron to withstand the heavy loads and stresses encountered during excavator operation.
Hub: The hub is the central part of the sprocket that attaches to the sprocket shaft. It is responsible for transmitting the rotational force from the shaft to the sprocket body and track chain.
Teeth: The sprocket teeth are the protruding elements that engage with the track chain links. They are usually curved or pointed to ensure proper contact with the chain, allowing for efficient power transmission and minimizing wear.
Flanges or Rims: Flanges or rims are located on either side of the sprocket teeth. They help guide and support the track chain, preventing it from derailing or coming off the sprocket during operation.
Bolt Holes: Sprockets often have bolt holes or mounting points to secure them to the sprocket shaft. These bolt holes allow for easy installation and removal of the sprocket when necessary.
Wear Surfaces: The surfaces of the sprocket teeth and flanges that come into contact with the track chain are designed to withstand wear. They are typically hardened or treated to enhance durability and extend the sprocket’s lifespan.
Lubrication Features: Some sprockets may have lubrication features such as oil grooves or holes. These features facilitate the distribution of lubrication to reduce friction and wear between the sprocket and track chain.
It’s worth noting that the specific design and configuration of excavator sprockets may vary depending on the manufacturer, excavator model, and intended application. Different excavators may have variations in tooth shape, number of teeth, or other features to optimize performance and durability.
