Patent ID: 6314649
Filing Date: 2001-11-13
Classification: A01D

Abstract:
A work apparatus comprising:a drive motor;a guide tube having an end connected to said drive motor and having an end section facing away from said drive motor;a rotatably driven work tool mounted on said end section;a drive shaft rotatably journalled in said guide tube and connecting said drive motor to said work tool so as to permit said drive motor to rotatably drive said work tool;said end section defining a longitudinal axis and having an interior space;said end section further having an inner diameter (D.sub.I) before being formed;a bearing axially inserted into said interior space for mounting said work tool on said end section;said bearing having an outer surface and a plurality of axial ribs formed on said outer surface;said axial ribs having respective rib roofs conjointly defining an imaginary cylinder having an outer diameter greater than said inner diameter (D.sub.I) of said end section;said bearing having an outer shape when viewed in cross section characterized by said outer surface with said axial ribs; and,said end section of said guide tube being elastically formed to assume a shape corresponding to said outer shape of said bearing for surroundingly force tightly holding said bearing.