An economical device to change the phase relationship of drive components is the Phas-Lok Adjusting Hub from Zero-Max (Minneapolis, MN). It provides stepless adjustment with a 12° range to compensate for timing changes caused by chain or tooth wear.
The MICROROLLER(TM) electric conveyor roller from Sparks Belting (Grand Rapids, MI) is a self-contained unit that provides drive power to roller conveyor systems, eliminating the need for external drive components such as belts, chains and sprockets.
Marq's (Yakima, WA) New Style High-Performance Case Erector measures just 70" x 70". Lug drive system enables the machine to erect and seal stovepipe case styles where the case height exceeds the case length.
The "Elevayor" from Maryland Wire Belts (Church Creek, MD) is a patent-pending, small-footprint vertical transfer system designed to replace inclined straight conveyors when there is a need for space savings.
Machines in the 880 series of case palletizers from Alvey (St. Louis, MO) employ shaft-mounted drives to reduce the number of sprockets, chains, belts and takeups for such primary devices as the row pusher, apron and hoist.