W. Schlafhorst Ag & Company

Bert Schl&ouml;mer

Heinz-Georg Wassenhoven

Hans Grecksch

Brigitte Riede

Elisabeth Klaczynski

A bearing of a spinning rotor of an open-end spinning apparatus, in which the rotor shaft is radially supported by means of support disks and is axially positioned by a magnetic bearing. The center axis of the rotor is offset relative to the center axis of the static bearing component of the axial bearing in the direction of the bearing nip . In addition, at least in the region of the end of the axial bearing toward the support disks &prime;, an engagement surface with an anti-friction surface layer is provided, which supports the rotor , especially during rotor cleaning.

Bearing a spinning rotor of an open-end spinning apparatus

A spinning rotor adapted to be seated in a spinning box of an open-end spinning machine and having an identification mark (,), preferably embodied as alpha-numeric characters, formed at a location on the rotor cup (,) at which the information content of the identification mark (,) can be visually determined while within the spinning box after opening and stoppage of the rotor but without removal from the spinning box, thereby permitting a user-friendly, time-saving and dependable visual check of the spinning rotor type.

Spinning rotor with identification mark

A spinning rotor for use at high speeds in open-end spinning machines has a rotor cup having an annular wall portion defining a rotor opening, a bottom wall portion merging with the annular wall portion, and a mounting hub extending exteriorly from the bottom wall portion. A rotor shaft is affixed to the mounting hub coaxially with the rotor cup. The merger of the bottom and annular wall portions of the rotor cup defines a maximum exterior diameter of the rotor and an interior rotor groove. The annular wall portion, the bottom wall portion and the mounting hub are of different cross-sectional thicknesses with the cross-sectional thickness of the bottom wall portion increasing from the rotor groove to the mounting hub. The wall thickness is less than 1.2 mm in the area of the maximum exterior diameter of the rotor cup (,) and the rotor cup has an aerodynamic exterior contour free of edges for deterring turbulent boundary layer air flow thereabout and an interior contour for promoting fiber spinning into a yarn.

Growing community of inventors

Heinsberg, Germany

Bert Schlömer

Growing community of inventors

Heinsberg, Germany

Bert Schl&ouml;mer

Bert Schlömer