TECAFORM® AD HPV13 Rod

TECAFORM® AD HPV13 is an acetal homopolymer (POM-H) modified with an internal PTFE lubricant, formulated specifically as a bearing and wear grade. The lubricant transfers to the mating surface in service, dropping the static coefficient of friction to 0.07 and the dynamic value to 0.12 at 40 psi and 50 fpm, with a wear rate of 20 x 10-10 in3-min/ft-lb-hr against steel. Limiting PV reaches 12,000 psi-fpm at 10 fpm and 1,600 psi-fpm at 100 fpm. Structural properties remain useful at 7,700 psi tensile strength, 13,000 psi flexural strength, and 118 Rockwell R hardness, with 0.12% moisture uptake in 24 hours.

The target work is unlubricated sliding: bushings, sleeve and thrust bearings, wear strips, slide plates, cams, and gears in packaging machinery, conveying systems, food processing equipment, and power engineering. It runs dry against steel where oil or grease would contaminate product or attract debris. Stock shapes machine cleanly with standard acetal practice and hold tolerance after cutting. Continuous service is 185°F with a 244°F heat deflection temperature at 264 psi. The PTFE loading trades away some tensile strength and elongation versus unfilled homopolymer, colour is limited to brown, and strong acids attack the acetal matrix.