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Re: Chain driven vs Direct drive mechanum
Quote:
Originally Posted by Tom Line
We're definitely not using a torque wrench, but we're also making those bolts pretty tight. (I generally have a good feeling for pretty tight - I work in an engine plant and deal with a lot of bolt torque testing). I'll check on the torque next we tighten them and compare it with the recommended torque for a grade 8 fastener of that size.
The more I think about it the more I think you're right about the fasteners taking all the shear rather than just acting in tensile. Thanks for the suggestion.
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Let us know how it turns out!
A second thought occurs: is there any abnormal wear around the bolt head or nut clamping area? (I think this is called "fretting") it could be that the bolts are losing tension from part wear.
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