and spindle rotation speed 32 it is well known that cinching attachment of the web to the winding means is a function of the cinching force 24 and the static coefficient of friction for interior surface of web to web wrapping surface 22 it is also well known that the static coefficient of friction 22 for interior surface of web to web wrapping surface is a function of the material of the web winding means 10 the material of the web 1 and texture of web wrapping surface 15 referring again to fig1 failure to cinch occurs when the static coefficient of friction for interior surface of web to web wrapping surface 22 is less than the static coefficient of friction for interior surface of web to exterior surface of web 23 referring again to fig1 deleterious particles 28 are generated from the annular portion surface by the abrasion of the annular portion surface 17 against the spindle surface 8 and the web winding machine spindle key surfaces 9 are against the key way surface 19 the abrasion results from minute movements of web winding device 10 relative to the spindle 6 due to the dynamics of the web winding process the deleterious particles 28 are predominantly generated from but not limited to the web winding device 10 being typically composed of a material with a lower abrasion resistance than that of the spindle 6 web winding machine spindle 6.