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Crossflon® slide bearings are used in a wide range of applications including pipelines, heat exchangers, pressure vessels, storage tanks, industrial machinery, buildings and bridges.

A Crossflon® 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.

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Typical Configurations

Images are for illustrative purposes only. Typical configurations shown.
Alternative arrangements are available, please contact us for more information.

Crossflon® Slide Bearing

Typical Assembly:
Top Sliding Plate:
2.5mm thick Crossflon® XF225 bonded to a 3mm thick carbon / stainless steel plate.
Bottom Sliding Plate:
2.5mm thick Crossflon® XF225 bonded to a 3mm thick carbon / stainless steel plate.
Method of Installation:
Tack welding, full welding, bolting.
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  • Carbon / stainless steel
  • Crossflon® XF225

Crossflon® Slide Bearing – Elastomeric

Typical Assembly:
Top Sliding Plate: 2.5mm thick Crossflon® XF225 bonded to a 3mm thick carbon / stainless steel plate. Bottom Sliding Plate: 2.5mm thick Crossflon® XF225 bonded to a 3mm thick carbon / stainless steel plate bonded to a 6mm thick elastomer sheet bonded to a 3mm thick carbon / stainless steel plate.
Method of Installation:
Tack welding, full welding, bolting, mortar embedment.
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  • Carbon / stainless steel
  • Crossflon® XF225
  • Elastomer

Crossflon® Slide Bearing – Counterfaced

Typical Assembly:
Top Sliding Plate:
3mm thick polished stainless steel plate.
Bottom Sliding Plate:
2.5mm thick Crossflon® XF225 bonded to a 3mm thick carbon / stainless steel plate.
Method of Installation:
Tack welding, full welding, bolting, mortar embedment.
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  • Polished stainless steel
  • Crossflon® XF225
  • Carbon / stainless steel

Crossflon® Slide Bearing – Recessed

Typical Assembly:
Top Sliding Plate:
3mm thick polished stainless steel plate.
Bottom Sliding Plate:
5mm thick Crossflon® XF225 bonded into a 2.5mm deep recess in an 8mm thick carbon / stainless steel plate.
Method of Installation:
Tack welding, full welding, bolting, mortar embedment.

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  • Polished stainless steel
  • Crossflon® XF225
  • Carbon / stainless steel
Crossflon® XF225 – Technical Data

We offer slide bearings in a range of configurations, and each is designed to suit the specific application. A typical slide bearing element consists of 2.5mm thick Crossflon® XF225 sheet 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.

Crossflon® 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 Crossflon® XF225 during installation.

Substantial deviations from parallel movement of the structure can be accommodated by incorporating an elastometric element within the Crossflon® slide bearing.

Crossflon® slide bearings generally employ Crossflon® XF225 (a specially compounded reinforced PTFE) at the operating surface. Crossflon® XF225 is capable of accommodating loads of up to 18 MPa. The load bearing capacity of Crossflon® XF225 can be increased by containing it in a recessed steel backing plate and using polished stainless steel plate as the counterface.

For special considerations or difficult conditions, please contact us for assistance.

Crossflon® Slide Bearing Systems – Technical Data

Figure 2: Coefficient of Friction (Static) vs. Bearing Pressure

Figure 3: Temperature Change For Various Thickness Of Thermal Insulation Board

Figure 4: Recommended Maximum Bearing Pressure

Selection Guide

  • Calculate the overall load of the structure as this will indicate the total area of the Crossflon® slide bearing required at an appropriate temperature and pressure.
  • Consider the function and rigidity of the structure to determine the quantity and positions of the Crossflon® slide bearings.
  • Take account of any unusual conditions that will affect the Crossflon® slide bearing during operation, such as the temperature at the sliding interface, angular misalignment and the need for acoustic or vibration dampening.
  • The type of adhesive used is determined by the temperature range at which the Crossflon® slide bearings will be operating. We ask therefore that this information is specified on all enquires.
  • Determine the most suitable method of fixing the Crossflon® slide bearings to the installation.
  • Consider the operating environment and select the type of steel for the backing plates accordingly.
  • If you have any difficulty in specifying your Crossflon® slide bearings, please contact us for assistance.