Demountable bearing and driving member for rack mounted rollers

Claim 1

In apparatus for transporting film having at least one demountable roller secured in a supporting frame the improvement which comprises: a roll end socket on the end of said roller having an elongated recess along the axis therein, a collar at the end of said roll end socket circumscribing said recess and forming a thrust bearing surface for contacting the surface of said supporting frame, a first torque transfer means incorporated in said recess for transferring torque to said roller, and a securing means, a unitary gudgeon having, a torque transmitting shaft rotatably and removably mounted in said supporting frame and removably insertable into the elongated recess of said roll end socket, said shaft having a bore along its axis, a second torque transfer means integral with the insertable end of said shaft for cooperating with and transferring torque to said first torque transfer means, a drive means mounted on the end of said shaft outside said supporting frame for providing torque to said shaft, a thrust beariNg surface integrally affixed to said drive means between said drive means and said supporting frame for making contact with said supporting frame, and a fastening member extending through said bore in said shaft and fastenable into said securing means for fastening said gudgeon to said roll end socket.