
Originally Posted by
Andeh
One more question for the experts, since I don't want to post on the dumpster fire torque wrench thread.
If you assume your torque wrench is slightly inaccurate, how much should you undershoot the torque specifications by to ensure you don't overtorque? I assume that you want to under torque, since over torquing can increase wear on bearings/pivots and make it harder to disassemble. What I've been doing is match the torque rating up to like 3nm. Up to 10nm, I undershoot by 0.5. Between 10-15, I undershoot by 1nm. Up to 45, I undershoot by 5nm. If it matters, I'm using a Pro Tools (Shimano) mini torque wrench for 1-15nm, and a Park one for 10-45nm. I suspect the Pro Tools one is inaccurate due to finding bearing binding and wear on linkages after following the rating exactly.
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