Track chains consist of chain link segments, which are connected to each other by bushes and pins. The drive sprockets drive the track chains, which in turn advance the machine in the desired direction of travel. The chain tension must be sufficiently high to ensure that the teeth of the drive sprocket securely engage in the track chain. Depending on the loading on the track chains by the operating weight of the machine and its maximum possible advance speed, WIRTGEN GROUP machines use not only dry, but also lubricated track chains.
In the case of lubricated chains, there is a lubricant between the bushes and pins that minimises friction between these components and, depending on the application, lengthens the service life of the track chains. The chain tension is created by a tensioning system. The necessary tension is provided and maintained either by a spring-grease tensioning cylinder or a hydraulic tensioning cylinder.
The dimensions and materials of all genuine WIRTGEN GROUP track chains are precisely matched to the drive sprockets, track pads and track rollers. They effortlessly withstand even the toughest continuous stresses in everyday use.