WMU® BEARINGS
Our WMU range of PTFE lined wrapped bearings is suitable for dry running, low friction, low wear applications. These wrapped bearings have excellent sliding characteristics forming a transfer film that can protect the mating metal surface.
Our PTFE lined wrapped bearings have been developed for high duty applications. Such applications include, but are not limited to:
• Automotive suspension struts
• Shock absorbers
• Hydraulic cylinders
• Gear pumps and motors
• Axial and radial piston pumps and motors
• Many other applications
We are able to offer PTFE lined wrapped bearings in metric plain, imperial plain, metric flanged, metric washers, imperial washers, metric strip and imperial strip. Special sizes can be produced to customer requirements.
Equivalent alternative brands include: Glacier Garlock DU, P10, P14
STRUCTURE
• A lead-free polymer fibre mixture provides an initial transfer film which effectively coats the mating surface of the bearing assembly, forming an oxide-type solid lubricant film
• Sintered bronze powder provides maximum thermal conductivity away from the bearing surface and also serves as a reservoir for the PTFE mixture
• The steel backing provides a high load-carrying capacity which provides the wrapped bearings with outstanding heat dissipation
• The copper/tin plating provides excellent corrosion resistance
• These are versatile and extremely durable wrapped bearings and can be used in many applications. Feel free to contact us for a discussion about how PTFE lined wrapped bearings could fit into your project.
WMU-B & WMU-SS BRONZE BACKING STRIP
In addition to the standard steel-backed, PTFE lined wrapped bearings we also offer our WMU-B and WMU-SS range with a bronze or stainless steel backing strip for applications where the standard steel is not suitable. Range, dimensions and tolerances are exactly the same as the standard PTFE lined wrapped bearings.
WMU® PLAIN BEARINGS
The WMU plain bearings are available in metric and inch sizes as standard. Our in-house machining service is able to offer non-standard sizes to suit specific customer requirements.
WMU® FLANGED BEARINGS
Our WMU range of PTFE lined wrapped bearings are suitable for dry running, low friction, low wear applications
The WMU flanged bearings are available in metric and inch sizes as standard. Our in-house machining service is abale to offer non-standard sizes to suit specific customer requirements.
WMU® BEARING STRIP
Our WMU range of self lubricated strip bearings are made from carbon steel with a sintered bronze layer filled with PTFE.
Available in metric and imperial sizes from stock. Also bronze versions can be supplied to order.
Our in-house machining service can produce non-standard sizes to suit specific customer requirements.
WMU® WASHERS
Our WMU range bearing strip is made from carbon steel with a sintered bronze layer filled with PTFE.
Available in metric and imperial sizes from stock. Also bronze or stainless steel backed can be supplied to order.
Our in-house machining service can produce non-standard sizes to suit specific customer requirements.
Please contact us for information on sizes
Structure | S.A.E. 1010 steel backing strip with sintered bronze and PTFE layers |
Max PV – Dry (N/mm² x m/s) | 1.8 | Max PV – Oiled (N/mm² x m/s) | 2.8 |
Max Static load (N/mm²) | 250 | Max Dynamic load (N/mm²) | 140 |
Max Sliding speed – Dry (m/s) | 2.5 | Max Sliding speed – With Oil (m/s) | 5 |
Operating temperature (°C) | -200 to 280 |
Thermal Conductivity (W/mk) | 42 |
Coefficient of friction – Dry | 0.02 to 0.20 | Coefficient of friction – With Oil | 0.02 to 0.15 |
Recommended shaft finish (Ra) | 0.04 max (N5) | Recommended shaft hardness (HB) | 200 min |