Schaeffler Metal-polymer Composite Plain Bearing for Rotary and Oscillating Motion Applications
Schaeffler’s metal-polymer composite bearings are designed to be particularly effective in oscillating applications, where the bearings are claimed to achieve a higher basic rating life than conventional bearings.
Available as bushes, flanged bushes and thrust washers, Schaeffler claims these products are ideal for applications where there are very small radial or axial design envelopes.
The metal-polymer composite material provides low-wear sliding characteristics, as well as high load-carrying capacities (up to 250N/mm2) and high thermal conductivity.
Three different lead-free materials are available in the range, including a selection of bearings with maintenance-free and low-maintenance materials E40 and E50.
[Materials available]
E40:
-Claimed to be generally maintenance-free
-Uses PTFE and different chemically inert additives as lubricant
-Recommended for rotary and oscillating motion applications
-Suitable for short-stroke linear movements
E50:
-Low maintenance, requiring initial grease lubrication at start-up
-Sliding layer is mainly polyoxymethylene (POM)
-Low-wear material
-Good damping properties
-Long relubrication intervals
-Suitable for long-stroke linear motion applications
E60:
-Maintenance-free foil bearings
-Lattice structure, in which a sliding layer of PTFE and other additives is rolled and sintered
-Its structure functions both as a backing and a sliding layer
-PTFE sliding layer is on both sides of the foil, so that sliding can take place on the inside and outside of the bushes
-Designed to be easily moulded
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