Abstract: An abrasion resistant material is combined with a flow promoting material to provide a conveyance that is flow promoting and wear resistant. Holes formed in a UHMW conveyance allow a ceramic overlay to bond to itself creating a mechanical bond with the UHMW. In a first embodiment, a ceramic composite overlay is form fit to UHMW mixing paddle. The paddle has a tongue with holes therethrough. The ceramic overlay fills the holes creating a mechanical bond between the paddle and the ceramic composite. In another embodiment, a ceramic overlay is bonded to a steel insert received in a channel formed in the distal end of a mixing paddle.

Abstract: An adaptor for power transmission in a pulley and shaft. Two adaptor portions are disposed on opposite sides of the pulley and drawn axially together to capture the pulley therebetween. At least one of the adaptor portions is attached to a quick disconnect bushing on the shaft. A connecting member is tightened to draw the adaptor portions and the bushing together. Preferably, the bushing is tapered and the adaptor portions are correspondingly tapered, providing a radially directed force. The adaptor portions are particularly suited for use with a pulley that is substantially formed of plastic.