Link-Belt
Drive sprocket for Link-Belt LS318
This drive sprocket transmits power from the final drive to the track chain on the Link-Belt LS318 crawler crane. It features a specific tooth profile designed to engage with the chain links for consistent movement.
Compatible models
Specifications
- Part number
- 21A0117
- Brand
- Link-Belt
The drive sprocket 21A0117 is a toothed component located within the undercarriage system of the Link-Belt LS318 crawler crane. Its primary function is to transfer rotational power from the final drive assembly to the track chains, enabling the machine to propel itself across a work site. The teeth of the sprocket mesh directly with the track links, providing the necessary traction for movement and positioning of the crane.
This component is engineered specifically for the Link-Belt LS318 lattice boom crawler crane. The sprocket profile and tooth count are designed to match the pitch of the track chain, ensuring that the drive system operates with the correct timing and engagement. Regular inspection of the sprocket teeth is required to monitor for wear patterns that may affect the interaction between the drive system and the track assembly.
In tracked machinery, the drive sprocket acts as the interface between the transmission of power and the ground engagement system. By converting torque into linear motion, the sprocket allows the crane to navigate various terrains. Maintaining the correct alignment and tooth geometry is necessary to prevent slippage or premature wear on the track chain assembly.

