Il giorno mar, 13/12/2011 alle 13.13 -0500, Dave ha scritto: > On 12/13/2011 8:41 AM, Spiderdab wrote: > > Hi, and sorry for the ot question, but maybe your knowledge can help me. > > > > Do you know of someone selling cheap safety brakes, to be mounted on the > > back shaft of a stepper motor, with a torque of 570oz/in (about 4N/mt). > > I mean those when if current goes off they brake. > > > > Thank for any suggestion, Davide. > > > > > > "Cheap" and "Safety" don't normally go together. ;-) > I know, but we are talking about a brake for 4N/mt, so it's a little torque.. > What do you consider cheap? > > I'd like to find a less expensive holding brake for Nema 34 steppers, > something in the $100 range would be nice. > > I found these. > > http://www.damencnc.com/en/components/motors-and-drivers/motor-add-ons/252 > http://www.electroid.com/prod09.htm > > Dave first are very nice, but cost too much! 124€ for one brake! i've found something on rs site, that costs around 78€ per brake, but not with nema size mount. It has the same torque, 3,95N/mt http://it.rs-online.com/web/p/accessori-per-freni-frizioni/2677674/ about the second link, they don't put prices on the site, did you already asked for?
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