Thread: Metal bushings
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Old March 24th, 2009, 16:27   #30
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Originally Posted by yuhaoyang View Post
So you mean 4k rounds before they melted or you still have them installed after 4k rounds?
They don't melt, the inner hole where the gear shaft sits gradually opens up more, allowing the gear to start to wobble and bind on the gear it mates with, causing an eventual failure.
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