Cheaper, lighter strong wheels for a ring-spinning machine mobile fan

摘要

A fan blower for a ring-spinning machine is mounted on a wagon having a drive shaft with wheels rigidly connected on both sides of it and parallel to this shaft a free-running rigid axis with free- running wheels on both its sides. All the wheels have a cylindrical disc and attached on it a plastic tyre- like ring. The drive wheels (1) including hubs (6) are made of plastic in one piece, each hub having a central machined hole for pressing on the drive shaft. The free-running wheels each comprise a symmetrical cylindrical plastic case with an axial machined hole and a cylindrical recess holding an embedded bearing race. Also claimed are the above drive wheel and free-running wheel for use in the fan blower.