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Tech. Advice: Series 'B' / 'C' 500cc/1000cc Bikes
Cam Suppliers
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<blockquote data-quote="davidd" data-source="post: 110211" data-attributes="member: 1177"><p>Needle rollers are generally available with crowded rollers, caged rollers, internal sleeves and seals. The end of the bearing can be open or closed (this means one end of the bearing is closed usually because it is at the end of a shaft). Examples of open bearings:</p><p></p><p>[ATTACH=full]28855[/ATTACH]</p><p></p><p>The crowded roller is often a heavy duty needle roller (but possibly lower rpm) when compared to a caged roller that contains many fewer rollers. Check the load rating and rpms for the application:</p><p></p><p>[ATTACH=full]28856[/ATTACH]</p><p></p><p>The bearing shell usually constrains the rollers or the cage. You can usually buy sleeves separately for the inside of the bearing. This is useful if the shaft is not hardened.</p><p></p><p>[ATTACH=full]28857[/ATTACH]</p><p></p><p>Attached is an article on the conversion.</p><p></p><p>David</p></blockquote><p></p>
[QUOTE="davidd, post: 110211, member: 1177"] Needle rollers are generally available with crowded rollers, caged rollers, internal sleeves and seals. The end of the bearing can be open or closed (this means one end of the bearing is closed usually because it is at the end of a shaft). Examples of open bearings: [ATTACH type="full" alt="HD Needle 2560 03.PNG"]28855[/ATTACH] The crowded roller is often a heavy duty needle roller (but possibly lower rpm) when compared to a caged roller that contains many fewer rollers. Check the load rating and rpms for the application: [ATTACH type="full" alt="HD Needle 6820 02.PNG"]28856[/ATTACH] The bearing shell usually constrains the rollers or the cage. You can usually buy sleeves separately for the inside of the bearing. This is useful if the shaft is not hardened. [ATTACH type="full" alt="TAFI223416-2.jpg"]28857[/ATTACH] Attached is an article on the conversion. David [/QUOTE]
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Tech. Advice: Series 'B' / 'C' 500cc/1000cc Bikes
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