In the use of radial lip-type oil seals to seal against a rotating shaft, the surface characteristics of the shaft are important to the sealing and to the resultant seal/shaft friction. A plunge ...

Compressive forces (labeled F and F/2) keep the three inner rings in contact with the driveshaft. The ability to produce smooth, precise, and accurate linear motion is key to many manufacturing and ...

Friction welding as a way to reduce costs is a viable option for design engineering and new product development. Cost versus performance criteria—abrasion or corrosion resistance, mechanical strength ...

A ROTATING shaft can exhibit torsional vibration when, because the dynamic coefficient of friction is less than the static value, the frictional force at the bearings supporting the shaft decreases as ...

Low-friction coatings for bearings can improve bearing life and performance. Low-friction coatings are used on bearings for two reasons. The first is as a backup lubricant if the primary (fluid) ...

A Canadian startup has developed a small prototype wind turbine that uses friction instead of a gearbox to convert wind energy into electricity. CWind, based in Owen Sound, Ontario, recently began ...