Wrapped PTFE Lined Plain Bushes:These bushes are ideal for dry-running, low-friction, and low-wear applications. Our range of WMU bushes offers excellent sliding characteristics, forming a transfer film that helps protect the mating metal surface. These PTFE bushes are composed of a lead-free polymer fibre mixture, which forms an initial transfer film that creates an oxide-type solid lubricant on the bearing surface. Sintered bronze powder enhances thermal conductivity and acts as a reservoir for the PTFE mixture. The bronze backing ensures high load capacity and efficient heat dissipation, while the copper/tin plating provides excellent corrosion resistance, making these wrapped bearings versatile and durable for a wide range of applications. Benefits: Self lubricating, corrosion resistant, chemical resistant
Brand / Quality: Major Brand - High Quality Inside Diameter: 220mm Outside Diameter: 225mm Length: 70mm
Inside Diameter (d)
=
220mm
Outside Diameter (D)
=
225mm
Length (B)
=
70mm
Max PV - Dry
=
1.8 N/mm squared x m/s
Max PV - Oiled
=
2.8 N/mm squared x m/s
Max Static Load
=
250 N/mm squared
Max Dynamic Load
=
140 N/mm squared
Max Sliding Speed - Dry
=
2.5 m/s
Max Sliding Speed - With Oil
=
5 m/s
Operating Temperature
=
-200 to 280 Deg C
Thermal Conductivity
=
42 W/mk
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
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WMUB22022570 Metric Wrapped PTFE Lined Plain Bush 220x225x70mm
Simply bearings are the UK's largest online retailer of bearings, seals, belts, chains, sprockets, lubricants and other associated power transmission equipment.
Simply Bearings Ltd, Halton House, Greenfold Way, Leigh Greater Manchester WN7 3XJ United kingdom