Sprockets and Segments for Excavators and Bulldozers

The sprockets are first molded or forged and then machined to give them a special heat treatment. If the carbon content in the steel is insufficient, then it becomes brittle during the hardening process. If it's just case hardened, the sprocket or sprocket will wear out very quickly over time. Therefore, the sprocket teeth are hardened by induction hardening.

Sprockets and links, also called gears in the branch, run between the excavator or bulldozer links. Furthermore, this chassis part runs on bushings that connect the two links of the chain. The gears are mounted around the drive gears of the machine and are only used to drive the chain, so they do not carry any weight from the machine.

The difference between sprockets and segments
Sprockets are metal cogs consisting of a metal inner ring with bolt holes or a compression hub and a gear ring as a unit. The sprocket can be screwed on directly or pressed onto the drive hub of the machine, usually used in excavators.
Like the sprocket, the segment also consists of a metal inner ring with bolt holes and a ring gear. Unlike sprockets, segment groups exist in the individual segments that make up the bulldozer chassis sprocket. This means that segments can be replaced without removing the track links.