On 15 February 2013 12:48, Erik Christiansen <[email protected]> wrote:
> I only want to use it on a hobbing and dividing gadget, so might get > away with belt drive within the 75N limit, but only if I only ever use > half of its torque, given your figures. No, that would use up the whole > allowance in the torque force! I can pretension to 37N, and use 1/4 of > the motor torque, IIUC I don't think that the forces are additive. The torque will tighten one run of the belt and loosen the other. Only when the "torque force" is higher than the pre-tension will the radial load increase. (equivalent to bolt preload) Bigger pulleys reduce the "torque force" The rating is at 20mm from the flange, it should be higher closer to the bearings. Worst-case you have to replace the bearings every decade... -- atp If you can't fix it, you don't own it. http://www.ifixit.com/Manifesto ------------------------------------------------------------------------------ Free Next-Gen Firewall Hardware Offer Buy your Sophos next-gen firewall before the end March 2013 and get the hardware for free! Learn more. http://p.sf.net/sfu/sophos-d2d-feb _______________________________________________ Emc-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-users
