Abstract: A tenter clip has a jaw pivot shaft having a pair of molded bearing surfaces of superior strength, wear resistance and stability under high temperature operating conditions. The method for manufacture of the jaw pivot shaft includes knurling recesses formed in the shaft prior to applying plastic bearing material to the recesses by injection molding and finishing machining the pin by centerless grinding.

Abstract: Tenter frame apparatus includes an endless chain for carrying tenter clips (A) on one side of a monorail (B) for positioning a web (W) for transport on a single pair of longitudinally aligned bearings (C) carried in horizontal alignment with the web (W), and for guidance on a stationary track (D) by a wear strip (E) first opposed wear pads (F) opposite the bearings and second opposed wear pads (G) at the top of the monorail. Since the bearings (C) do not engage drive sprockets at turnarounds impact and high loads are avoided. In some applications wear strips may be substituted for the bearings (C).