Abstract: A downhole tool including a downhole motor. The downhole motor may include a housing, a stator positioned within the housing, and a rotor positioned within the stator. The stator may include an elastomer compound that may include at least one of NBR or HNBR, process aids, and at least one of zinc oxide or graphite.

Abstract: A solderless coaxial cable connector for securely holding coaxial cable without indentation to the cable dielectric and offering a high strength joint at the connector. A conductive cylindrical body having four annular ratchet teeth keeps the connector from rotating when mated. The small end of the body accomodates a screw sleeve or a crimp sleeve for the outer conductors of the coaxial cable connector. The large end of the body accommodates a tubular insulator with a bore for a crimp type contact for a solid or stranded center conductor of the coaxial cable. A female nut is held in place at the center portion of the body between the large diameter section and the sleeve, either crimp or screw, to act as a coupling nut when the connector is mated.