Disc Bearing

Disc bearings are used for large railway and highway bridges. The polyurethane material is a frequently used bearing in railway bridge projects due to its rotation, load carrying capability and long service life. The cohesion of the polyurethane material is typical and has a long service life, which makes it easy to transport large live loads of railways and motorways. The disc bearings consist of the following materials:

Bright Stainless Steel: The polished stainless steel surface on PTFE (Teflon) produces low shear friction.
Horizontal Load Carrying Mechanism: The high-strength shear force pin transfers downward shear forces without reflecting the shear forces onto the polyurethane material.
Teflon: It has a very low coefficient of friction with stainless steel.
Polyurethane Disc: The polyurethane disc allows rotation in all directions (longitudinal and transverse) when carrying vertical loads of 1 kN - 100.000 kN. There are three different types of disc bearings in terms of operating principle:
Fixed Disc Bearing: Fixed bearings allow to rotate in every direction while preventing lateral movements.
Unidirectional Disc Bearing: These bearings allow to be displaced in one direction and to rotate in every direction.

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