A Crossflon® PTFE slide bearing normally comprises of an upper element and a lower element, which operate by sliding against one another.
The upper element is generally larger than the lower element by the amount of the anticipated movement.
This ensures that the lower element is subjected to uniform load throughout motion and excludes foreign matter from the sliding interface.
We offer
Crossflon® PTFE slide bearings in a range of configurations although each is designed to suit the specific application.
A typical slide bearing element consists of 2.5mm thick Crossflon® 1025 or Crossflon® 1000 hot cure factory bonded under controlled conditions of temperature and pressure to a 3mm thick steel backing plate for welding to the installation.
Alternative material thicknesses can be supplied.
Substantial deviations from parallel or rotational movement of the structure can be accommodated by incorporating an elastomeric element within the Crossflon® PTFE slide bearing.
Crossflon® PTFE slide bearings are able to operate through a temperature range from -195°C (-319°F) to 260°C (500°F).
Crossflon® PTFE slide bearings employ either Crossflon® 1025 (a specially compounded reinforced PTFE) or Crossflon® 1000 (virgin PTFE) at the operating surface. Crossflon® 1025 and Crossflon® 1000 are capable of accommodating loads of 18 MPa (184 kg/cm
2) and 7 MPa (71 kg/cm
2) respectively. The load bearing capacity of these materials can be increased by containing them in a recessed steel backing plate.
For special considerations or difficult conditions, please
contact us for assistance.
Crossflon® PTFE slide bearings can be fixed to the installation by full welding, tack welding, mortar embedment or bolting.
The appropriate slide bearing configuration should be selected to suit the method of installation.
Care should be taken to adequately protect the surface of the PTFE during installation.
