Abstract: A kit of parts includes a ceramic element comprising a cylindrical bore having at least one recess, and a rod comprising an outer tube comprising a jutting portion adjacent to an insert portion. An outer tube wall mates with the cylindrical ceramic bore. An outer tube bore comprises a cylindrical portion. An outer tube projecting member is insertable into a recess in the cylindrical bore. An inner mandrel insertable into the outer bore stabilizes a projecting member in a recess to couple the rod to the ceramic element.

Abstract: A kit of parts includes a ceramic element comprising a cylindrical bore having at least one recess, and a rod comprising an outer tube comprising a jutting portion adjacent to an insert portion. An outer tube wall mates with the cylindrical ceramic bore. An outer tube bore comprises a cylindrical portion. An outer tube projecting member is insertable into a recess in the cylindrical bore. An inner mandrel insertable into the outer bore stabilizes a projecting member in a recess to couple the rod to the ceramic element.

Abstract: An integral metal end cap for use in a conveyor roll assembly is suitable for use in an environment subject to significant temperature variation. The metal end cap comprises a first end connectable to rotary means, and a second end comprising an integral body adapted to fit over the end of a ceramic spool. The integral body contains a torque transmission portion having a plurality of deformable strips enabling transmission of torque during temperature variations. A conveyor roll assembly comprises a ceramic spool having a longitudinal axis and, at least at one end of the ceramic spool, a metal end cap as described.

Abstract: A conveyor roll assembly for use at high temperature comprises (a) a ceramic spool having a flexural strength of at least 15 MPa and an external diameter D and (b) a torque transmitter and support of a general cylindrical shape and having a longitudinal axis, comprising a body and (b1) a supporting portion comprising at least one cylindrical supporting surface and (b2) a connecting portion that is mechanically and resiliently deformed, comprising at least two distinct connecting surfaces, frictionally connecting the torque transmitter and support to the ceramic spool. At least one end of the ceramic spool has an axial, centered bore of a diameter 10 mm?d?¾ D, and a depth Dd?1.5 d. The torque transmitter and support is housed at least partially in the bore of the ceramic spool.

Abstract: An integral metal end cap for use in a conveyor roll assembly is suitable for use in an environment subject to significant temperature variation. The metal end cap comprises a first end connectable to rotary means, and a second end comprising an integral body adapted to fit over the end of a ceramic spool. The integral body contains a torque transmission portion having a plurality of deformable strips enabling transmission of torque during temperature variations. A conveyor roll assembly comprises a ceramic spool having a longitudinal axis and, at least at one end of the ceramic spool, a metal end cap as described.

Abstract: A conveyor roll assembly for use at high temperature comprises (a) a ceramic spool having a flexural strength of at least 15 MPa and an external diameter D and (b) a torque transmitter and support of a general cylindrical shape and having a longitudinal axis, comprising a body and (b1) a supporting portion comprising at least one cylindrical supporting surface and (b2) a connecting portion that is mechanically and resiliently deformed, comprising at least two distinct connecting surfaces, frictionally connecting the torque transmitter and support to the ceramic spool. At least one end of the ceramic spool has an axial, centered bore of a diameter 10 mm?d?¾ D, and a depth Dd?1.5 d. The torque transmitter and support is housed at least partially in the bore of the ceramic spool.