Cast Nylon 6 MoS2 Rod

Cast nylon 6 with molybdenum disulphide dispersed through it during polymerisation. The MoS2 raises load-bearing capacity while keeping the impact resistance cast nylon is bought for, and it reduces the likelihood of bearing seizure. Friction against steel runs dry at 0.20 with a published limiting PV of 3,000 psi-ft/min and a wear factor of 90 x 10^-10. Tensile strength is 11,000 psi on a 400,000 psi modulus, flexural strength 16,000 psi on a 500,000 psi flexural modulus - the stiffest in the cast family - compressive strength 14,000 psi at 10% deflection, hardness Rockwell M80 (R110) and Shore D85.

Because it is cast, it comes in the large rod diameters and thick plate the extruded MoS2 grade cannot reach, which is usually the reason to choose it: big sheaves, pulleys, wear pads, slide plates, bushings and roller wheels on construction and heavy equipment. Melting point is 420F, continuous service 200F and heat deflection at 264 psi is 200F. Three cautions. Notched impact is 0.500 ft-lb/in, so it is not the grade for shock loading. There is no FDA, NSF, USDA or 3A compliance. And the dark grey is visually identical to the extruded 6/6 MoS2 grade, which melts 80F higher and expands less - the two are easy to mix up in the rack.