Disc bearings have seen extensive use on railroad bridges as well highway bridges . Disc Bearing are the favourite part for the bridge projects due to the cushioning effect and durability of the polytron rotational element which is designed to handle the excessive live loads typical on railroads and high ways.

Polished Stainless Steel
Stainless steel with a mirror finish provides a low friction sliding interface for the PTFE.
SRM (Shear Resisting Mechanism)
A high strength shear pin transfers horizontal loads from the base plate to the upper bearing plate and isolates shear loads from the polytron disc.
PTFE
The PTFE stainless steel sliding interface results in a very low friction coefficient.
Poliüretan Disk
Disc Bearing accommodates design loads of 1 to 100.000kN while maintaining its ability to provide rotation in both longitudinal and transverse directions.