Inner disc for Grove RT 522

The inner disc, part number 9904103988, serves as a friction component within the internal assemblies of Grove machinery. It is engineered to engage with corresponding outer or friction discs, allowing the system to either transmit torque between shafts or generate the necessary resistance for braking operations. The component is designed to mount onto a rotating hub or shaft, where it is compressed against mating surfaces to complete the friction interface.

This component is compatible with Grove RT 522 and TR522 rough-terrain crane models. It is typically integrated into the service or parking brake assemblies, or within the transmission clutch packs, where precise engagement is required for machine control. The disc is manufactured to meet the specific dimensional and flatness requirements necessary for uniform contact across the friction surface, ensuring consistent operation within the drivetrain or braking system.

In heavy equipment, inner discs are fundamental elements of wet or dry friction systems. They function by converting mechanical pressure into frictional force, which is essential for managing the rotational speed of shafts or bringing the machine to a controlled stop. Proper alignment and surface integrity are required for these discs to manage the thermal and mechanical stresses generated during standard operation.