Abstract: Exemplary embodiments of a can body making apparatus include a frame, a contact member and a reciprocation assembly. The reciprocation assembly comprises a ram and a guide assembly. The contact member is for dynamically interfacing with at least a surface of the reciprocation assembly and comprises a material capable of withstanding a minimum PV value of 50,000 psi*ft/min without lubrication. Exemplary embodiments of a reciprocation apparatus are further provided that include a frame, a contact member and a reciprocation assembly. The reciprocation assembly includes an elongated member and a guide assembly. The guide assembly includes a main body portion and a removable cartridge. The cartridge houses the contact member and is adapted to secure the contact member relative to the guide assembly. The contact member is for dynamically interfacing with at least a surface of the reciprocation assembly.