Sturmey-Archer SW Drei-Gang-Naben: Unterschied zwischen den Versionen

Sturmey-Archer SW Drei-Gang-Naben (Quelltext anzeigen)

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   In 1995, Sturmey-Archer enthusiast Jim Gill produced a report on the SW's shortcomings and how they might be resolved. He noted that slipping occurred in direct and high gears but not in low gear. After extensive testing, he concluded that invariably one or two pawls failed to seat fully against the ratchet teeth. The gear ring and pawl ring were thus no longer concentric so that with each turn of the hub the dogs which locked these two items together moved very slightly in relation to each other and eventually they "walked" apart, causing a slip.
-He concluded that the SW would have worked fine if Sturmey-Archer had a) slightly increased the depth of the well for the pawls and b) fitted each pawl with a spring and modified the profile of the ratchet teeth in the ball cups."4
+He concluded that the SW would have worked fine if Sturmey-Archer had a) slightly increased the depth of the well for the pawls and b) fitted each pawl with a spring and modified the profile of the ratchet teeth in the ball cups."<ref>Ergänzung zu [https://hadland.wordpress.com/2012/07/02/esoteric-info-for-sturmey-freaks/ Tony Hadlands Website]</ref>
 This explanation makes good sense and links the two failure modes of pawl problems and worn gear ring dogs. However, as I mention below, merely spring-loading the pawls provides an excellent solution to the slipping problems in normal and high gear.