TECAMID® 6/6 MO Rod, Double Annealed

TECAMID® 66 MO is extruded nylon 6/6 filled with molybdenum disulfide, which acts as both a nucleating agent and a solid lubricant. The result is a harder, stiffer, more dimensionally stable polyamide than the unfilled grade: tensile strength at yield is 12,000 psi, tensile modulus 500,000 psi, flexural strength 19,000 psi and Rockwell hardness M84. Long-term service temperature is 230°F with 355°F intermittent, and the melting point is 491°F. Measured wear rate against steel is 1.9 x 10^-8 in³/min·ft·lb·s·hr at 40 psi and 50 fpm, with a CLTE of 4.0 x 10^-5 in/in·°F.

It is specified for sliding-wear duty in conveyor systems, mining and heavy equipment, and power engineering: bushings, bearings, wear pads, slide strips, sheaves, gears and cam followers. Stock shapes machine easily and hold tolerance well. Two limitations matter. Adding MoS2 reduces impact strength relative to unfilled PA66, so notched Izod is 1.1 ft-lb/in and the material is not a choice for shock loading. Like all nylon 6/6 it absorbs moisture, 0.40% in 24 hours and 7.5 to 8.5% at saturation, so allow for dimensional growth and softening in humid or wet service. Flammability is UL 94 HB.