Micro V belts are apparently targeted at OEMs like car manufacturers who can make their own pulleys and order thousands of custom spec belts.
A friend of mine tried to buy a setup for a custom machine and nothing was off the shelf and the selection of belt lengths was very limited. He could get a belt length that would work but the pulleys were a custom order - expensive and 6 week delivery. I'd go with V belts, HTD or Timing belts and forget about Micro V belts unless you happen onto the proper parts. Dave On 4/30/2015 2:35 PM, Gene Heskett wrote: > > On Thursday 30 April 2015 14:16:55 Gene Heskett wrote: >> Greetings all; >> >> I have been snooping around with my google-fu, and coming up a bit >> long. >> >> Long as in the smallest of tese belts with a kevlar backing, is a 3/8" >> wide 3 ribber, 21" long. That is too long for what I am trying to do. >> >> What I have, under design but not carved just yet, would be a set of >> pulley's to be used on my toy mill when I remove the whole gearbox on >> the spindle and replace it with something resembling the LMS is >> selling for the mini-mill. But the motor will be the 400 watter I >> took off the lathe when I pout the 1 horse on it, so the motors pulley >> will need an 8mm hub, probably another shop made taperlock, while the >> spindle pulley will need a 30mm hub, > Actually, I came across a spare set of the nylon gears for the OEM 2 > speed, and the spindle diameter where the gears sit, and where my > pulleys will set, is 20.00mm in diameter, which will leave lots more > room for a taperlock hub. I've turned one 1/2" thick square to 7076T4 > (or something like it, turns beautifully) and the larger of the 2 > pulleys will have 70mm for top of rib diameter. This also gives room > enough to put one of my encoder disks on it, which should enable me to > do rigid threading on the mill too. > > $64 question. I have a suspicion I had better make the taperlock insert > out of steel as opposed to the same alloy of alu. Do you folks concur? > > My thoughts are: that dependent on the assembly lube, the alu against alu > will gall and seize a lot faster that a steel insert would. I haven't > yet cut the tapered bore for it. > >> possibly taperlock if I can find >> room for it. The two pulleys will be otherwise alike, with a 2/1 >> ratio when the belt is in the reduction grooves, and a 1/2 when its in >> the higher speed grooves, gfiving a variable speed range of up to 2500 >> in low range, and up to 10k in high range from a 5k motor. That ought >> to speed up making pcb's a bit. >> >> Unforch, on the gates site, no real data unless I kill a tree with >> their pdf catalog. Other sites, which obviously stock only the >> popular sizes for automotive useage, do not show anything in the 3 rib >> 3/8" width, shorter that 21". That would put the motor a couple >> inches farther off to the side than I'd like. >> >> Has anyone else found such smallish beasts and can give me a URL? > Thanks all. > > Cheers, Gene Heskett --- This email has been checked for viruses by Avast antivirus software. http://www.avast.com ------------------------------------------------------------------------------ One dashboard for servers and applications across Physical-Virtual-Cloud Widest out-of-the-box monitoring support with 50+ applications Performance metrics, stats and reports that give you Actionable Insights Deep dive visibility with transaction tracing using APM Insight. http://ad.doubleclick.net/ddm/clk/290420510;117567292;y _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
