POT cum PTFE Bearing
Free bearing allows rotation, longitudinal movement & transverse movements. The main components of a free bearing are the same as those of a fixed bearing, but are able to provide two-direction movements.
PTFE is a well known polymer which possesses some remarkable properties. The coefficient of friction when sliding against a polished surface can be as low as 0.01 which compares with ice sliding on ice. In addition, its coefficient of friction is the lowest at highest specific pressures which make it particularly suitable for use in structural bearings.
In order to minimize space requirements, Pot Bearings are designed for relatively high contact pressures against the structure. This also ensures lowest friction values. Most elastomers cannot sustain such pressures in their free state and must be effectively contained to prevent over straining. When constrained in this way, the elastomer behaves as a semi-viscous fluid and can safely accommodate useful degrees of angular displacement. All BEARING TECHNOLOGIES Pot Bearings can safely accommodate 0.01 radians rotation about any axis.