ROTOR GUARD RING FOR ROTOR SPINNING MACHINE

The invention relates to a guard ring for a rotor spinning machine, a spinbox for a rotor spinning machine as well as a rotor spinning machine. In order to provide the device to protect a spinning rotor of a rotor spinning machine from particles originating from a damaged bearing unit, to prevent lubricant from a bearing unit of a rotor assembly from contaminating a spinning rotor as well as to protect the fiber material or the roving supplied to the spinning rotor and the yarn or the thread produced by the spinning rotor from being contaminated by lubricant of the bearing unit, the guard ringcomprises a front plate section with a hub opening for the guard ring to be arranged on a spinning rotor shaft of the rotor spinning machine between a spinning rotor and a bearing unit, wherein the guard ring is built as a separate part from the spinning rotor, the spinning rotor shaft and the bearing unit, and the guard ring is provided to protect the spinning rotor from lubricant of the bearingunit and/or from mechanic