A drive shaft coupling support assembly includes a support beam mounted on a roller support and a housing movable along the beam between use and non-use positions. The housing includes a camming mechanism that can engage and securely hold the drive, shaft in a stationary position relative to the roller support to enable the replacement driven shaft to be readily re-engaged with the drive shaft. The camming mechanism is operable without the use of any tools. and the support assembly is able to be secured directly to a roller support to minimize the complexity of the assembly utilized to hold the drive shaft.