Best for applications where corrosion, high misalignment or edge loading, low friction and excellent wear characteristics are desired.

Applications
PolyLube Glass Tape Bearings can be used for guide rod bearings to linear motion components to hydraulic pumps. Swashblock mounted bearings are ideal as long as application considerations are consistent with a mixed film condition. Glass Tape Bearings offers a more elastic, damage tolerant structure when compared to traditional metallic bearing materials. In addition, they exhibit good cavitation resistance when subjected to high pressure fluids during cyclic conditions.

POLYLUBE®'s Glass Tape bearing is a moderate RPM bearing designed for applications with higher surface velocities or when mixed film conditions are desired. Stick-slip, commonly referred to as sticktion, is a phenomena many OEM's experience when designing with self-lubricated bearings. This condition can be alleviated through the use of POLYLUBE® Glass Tape series bearings.

Product Schematic
The PolyLube Glass Tape lined bearing is similar in backing construction to Fiber Series bearings. The difference in the construction of the liner material. The Glass Tape bearing has a lower coefficient of friction and will handle higher surface velocities, but sacrifices some capabilities with a slightly lower dynamic and static load capacity.

Glass Tape bearings use a proprietary filled PTFE resin structure as opposed to the continuous PTFE filaments used in the Fiber Series. Two liner thicknesses are available with the 0.015" thick liner being standard and a 0.030" for unique applications. The 0.030" liner is designed for applications where boring the inner diameter might be required in order to achieve tighter tolerances to address sizing and minor misalignment conditions.

Mechanical and Physical Properties
The PolyLube Glass Tape bearing can withstand static loads of approximately 60,000 PSI and 7,000 PSI under dynamic loading. At these loading levels, minimum distortion will occur. For dry running applications, the maximum speed is approximately 80 surface feet per minute.

This bearings operating temperature range is ±325°F. Maximum continuous operational surface temperature for the standard formulation is 325°F, depending upon load characteristics. The bearing has been heat stabilized at these temperatures, so that little dimensional change will occur in the bearing during operation. In a free state, the coefficient of expansion of the PolyLube Glass Tape bearing is approximately 7 x 10-6 in/in/°F, similar to the coefficient of expansion for steel, and actually less than some metals.