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The Folding Knife (& Switchblade) Forum The materials, techniques and the designing of folding knives.

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  #1  
Old 12-12-2012, 08:33 PM
rebglass rebglass is offline
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bushing for pivot pin on slipjoint

Why use a bushing? The blade will ride on the same material with a pin or bushing. I don't get it.
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Old 12-13-2012, 09:34 AM
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Don Robinson Don Robinson is offline
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Bushings are usually made of brass, softer than steel. Galling is caused by similar metals rubbing together. So the idea behind a bushing is to prevent galling.

That said, most slipjoints have never had a bushing and work just fine anyway.
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Old 12-15-2012, 07:17 AM
argel55 argel55 is offline
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You can also make the bushing a thousands larger than tang flat so will not bind the blade in operation.
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