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Tech. Advice: Series 'B' / 'C' 500cc/1000cc Bikes
Burman Drive Sprocket Loose
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<blockquote data-quote="oexing" data-source="post: 113070" data-attributes="member: 1493"><p>Now you could add up all side contact faces of the slots to find a total for Honda and Burman or Vincent that has to bear all loads from chain pull. The Japanese splines look a lot deeper than the very flat type of the Burman - or Vincent as well. I suspect to see very high specific loads in kg per square millimeter or in imperial units if you like, in that old design, that takes all the wear and will be difficult for lubricants to prevent fretting. Still I think all you can do is to care for a perfect fit in the spline plus EP grease or MoS2 paste when assembling. Any extra high torque on the nut is wishful thinking. That is why there are designs with push fit and circlip , no nut and thread as not helpful at all.</p><p></p><p> Vic</p></blockquote><p></p>
[QUOTE="oexing, post: 113070, member: 1493"] Now you could add up all side contact faces of the slots to find a total for Honda and Burman or Vincent that has to bear all loads from chain pull. The Japanese splines look a lot deeper than the very flat type of the Burman - or Vincent as well. I suspect to see very high specific loads in kg per square millimeter or in imperial units if you like, in that old design, that takes all the wear and will be difficult for lubricants to prevent fretting. Still I think all you can do is to care for a perfect fit in the spline plus EP grease or MoS2 paste when assembling. Any extra high torque on the nut is wishful thinking. That is why there are designs with push fit and circlip , no nut and thread as not helpful at all. Vic [/QUOTE]
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Tech. Advice: Series 'B' / 'C' 500cc/1000cc Bikes
Burman Drive Sprocket Loose
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