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Tech. Advice: Series 'B' / 'C' 500cc/1000cc Bikes
Heim joints
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<blockquote data-quote="Robert Watson" data-source="post: 124437" data-attributes="member: 38"><p>If I recall they are called Heim joints because that was the name of the man or company that invented them. Much like a vacuum cleaner (especially in the UK) is called a Hoover. So I just looked at Wikipedia.</p><p></p><p>The spherical rod end bearing was developed by <a href="https://en.wikipedia.org/wiki/Nazi_Germany" target="_blank">Nazi Germany</a> during <a href="https://en.wikipedia.org/wiki/World_War_II" target="_blank">World War II</a>.<a href="https://en.wikipedia.org/wiki/Rod_end_bearing#cite_note-1" target="_blank">[1]</a> When one of the first German planes to be shot down by the <a href="https://en.wikipedia.org/wiki/United_Kingdom" target="_blank">British</a> in early 1940 was examined, they found this joint in use in the aircraft's control systems. Following this discovery, the <a href="https://en.wikipedia.org/wiki/Allies_of_World_War_II" target="_blank">Allied</a> governments gave the <em><a href="https://en.wikipedia.org/w/index.php?title=H.G._Heim_Company&action=edit&redlink=1" target="_blank">H.G. Heim Company</a></em> an exclusive <a href="https://en.wikipedia.org/wiki/Patent" target="_blank">patent</a> to manufacture these joints in <a href="https://en.wikipedia.org/wiki/North_America" target="_blank">North America</a>, while in the <a href="https://en.wikipedia.org/wiki/UK" target="_blank">UK</a> the patent passed to <em><a href="https://en.wikipedia.org/w/index.php?title=Rose_Bearings_Ltd&action=edit&redlink=1" target="_blank">Rose Bearings Ltd</a></em>.<a href="https://en.wikipedia.org/wiki/Rod_end_bearing#cite_note-motorsport-2" target="_blank">[2]</a> The ubiquity of these manufacturers in their respective markets led to the terms <em>heim joint</em> and <em>rose joint</em> becoming synonymous with their product. After the patents ran out the common names stuck, although as of 2017 "rosejoint" remains a registered trademark of <a href="https://en.wikipedia.org/wiki/Minebea" target="_blank">Minebea Mitsumi Inc.</a>,<a href="https://en.wikipedia.org/wiki/Rod_end_bearing#cite_note-3" target="_blank">[3]</a> successor to Rose Bearings Ltd. Originally used in aircraft, the rod end bearing may be found in cars, trucks, race cars,<a href="https://en.wikipedia.org/wiki/Rod_end_bearing#cite_note-4" target="_blank">[4]</a> motorcycles,<a href="https://en.wikipedia.org/wiki/Rod_end_bearing#cite_note-5" target="_blank">[5]</a> lawn tractors, boats, industrial machines, go-karts, radio-control helicopters, formula cars,<a href="https://en.wikipedia.org/wiki/Rod_end_bearing#cite_note-:0-6" target="_blank">[6]</a> and many more applications.</p></blockquote><p></p>
[QUOTE="Robert Watson, post: 124437, member: 38"] If I recall they are called Heim joints because that was the name of the man or company that invented them. Much like a vacuum cleaner (especially in the UK) is called a Hoover. So I just looked at Wikipedia. The spherical rod end bearing was developed by [URL='https://en.wikipedia.org/wiki/Nazi_Germany']Nazi Germany[/URL] during [URL='https://en.wikipedia.org/wiki/World_War_II']World War II[/URL].[URL='https://en.wikipedia.org/wiki/Rod_end_bearing#cite_note-1'][1][/URL] When one of the first German planes to be shot down by the [URL='https://en.wikipedia.org/wiki/United_Kingdom']British[/URL] in early 1940 was examined, they found this joint in use in the aircraft's control systems. Following this discovery, the [URL='https://en.wikipedia.org/wiki/Allies_of_World_War_II']Allied[/URL] governments gave the [I][URL='https://en.wikipedia.org/w/index.php?title=H.G._Heim_Company&action=edit&redlink=1']H.G. Heim Company[/URL][/I] an exclusive [URL='https://en.wikipedia.org/wiki/Patent']patent[/URL] to manufacture these joints in [URL='https://en.wikipedia.org/wiki/North_America']North America[/URL], while in the [URL='https://en.wikipedia.org/wiki/UK']UK[/URL] the patent passed to [I][URL='https://en.wikipedia.org/w/index.php?title=Rose_Bearings_Ltd&action=edit&redlink=1']Rose Bearings Ltd[/URL][/I].[URL='https://en.wikipedia.org/wiki/Rod_end_bearing#cite_note-motorsport-2'][2][/URL] The ubiquity of these manufacturers in their respective markets led to the terms [I]heim joint[/I] and [I]rose joint[/I] becoming synonymous with their product. After the patents ran out the common names stuck, although as of 2017 "rosejoint" remains a registered trademark of [URL='https://en.wikipedia.org/wiki/Minebea']Minebea Mitsumi Inc.[/URL],[URL='https://en.wikipedia.org/wiki/Rod_end_bearing#cite_note-3'][3][/URL] successor to Rose Bearings Ltd. Originally used in aircraft, the rod end bearing may be found in cars, trucks, race cars,[URL='https://en.wikipedia.org/wiki/Rod_end_bearing#cite_note-4'][4][/URL] motorcycles,[URL='https://en.wikipedia.org/wiki/Rod_end_bearing#cite_note-5'][5][/URL] lawn tractors, boats, industrial machines, go-karts, radio-control helicopters, formula cars,[URL='https://en.wikipedia.org/wiki/Rod_end_bearing#cite_note-:0-6'][6][/URL] and many more applications. [/QUOTE]
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Tech. Advice: Series 'B' / 'C' 500cc/1000cc Bikes
Heim joints
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