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I am trying to determine the cause of a wear issue on our machine. We have a 440c idler bar that rests in a slotted block made of delrin or UHMW conductive Polyethylene holder. The shaft rotates at ~1500 rpm. I am getting wear on the shaft that produces brown dust. The shaft is 8mm and the...

Thanks juergenwt. This will be used as a stop pin for a small device with low torque applied, so will need a good press fit. Thanks for the tip! And, thanks to all of you for the input.

Thanks JHG. I don't have one...need to get one, yes.

I need to press fit a 6mm diameter dowel pin into a part. The pin is ISO m6 (+4,+12)µm. Should I use a M6 ISO hole (-1,-9)µm? So many options...

I appreciate all the input! We have radial loads on both sides of the shaft...which I believe will not allow for relative motion of the shaft in the bearing. I personally think the loctiting the shafts is extreme overkill, but I have been unable to convince our operations manager. Hopefully your...

I need some guidance in determining whether or not I need to lock a shaft in a bearing. We have a bearing block that has two deep groove ball bearings installed (one on either side). This block houses a 12mm shaft. The shaft is positioned in place by securing a collar on both sides of the shaft...