I like oldham couplers the best. If you have a run-away, the only thing that breaks is the disk. Yes.. they can wear out if you have a bad a major misalignment.. but, in general they last a long time. The also are easier to install because you can install each hub on the shafts and then just insert the motor.. you don't have to try to undo the hub if you need to remove the motor. I like them better than love-joy or spider type too because those have a bit of give in them. Helical or Beam couplers are nice for Routers, but, on this sized machine, you would need to use stainless steel ones, and not aluminium, AND, you might still have windup issues..
Here is a good video on the disk acting as a "fuse" around the 1:04 mark.. http://www.youtube.com/watch?v=utEKKox2WHA Thanks, Billy On 02/14/2013 11:21 AM, Pete Matos wrote: > Dave, > Honestly I have never heard of those before and I am lost when it > comes to all of the specifics of couplers for my mill. Those look pretty > cool but I did not like hearing of the broken split beam ones from that > other fellow. I was liking the looks of those. The disk type apparently are > heavy duty and I am now investigating those models. Some of the websites > don't show pricing and that often means if you have to ask you cannot > afford it LOL.... What kind are they using in modern Machining centers > nowadays? Peace > > Pete > > On Thursday, February 14, 2013, Dave <[email protected]> wrote: >> If you can find them at a reasonable price (ebay?) >> >> The stainless steel bellows type couplings are very good even in high >> torque applications. >> >> The price is right! >> > http://store.reuseum.com/Gerwah_AKD30_20mm_Bellows_Coupling_Motor_Coupler_p/000011213016B13Store.htm?gclid=CN2uyZ6VtrUCFYs7MgodIQUAEQ >> Dave >> >> On 2/14/2013 9:33 AM, Todd Zuercher wrote: >>> Helical beam are great for lower tourque aplications. But I was having > problems breaking them, and oldhams wear out much to quickly. I havn't had > a flexible ss disk style fail on me (yet) but I have only been using them > for about a year on the machine that was giving me problems breaking the > helical beams. All of our realy big routers used the flexible steel disk > type or something simular OE. >>> ----- Original Message ----- >>> On 13.02.13 16:17, Pete Matos wrote: >>> >>>> I have actually looked at Mcmaster carr as I usually do but did not > see >>>> what I needed. I actually like the looks of those cut bodied couplers > but >>>> I am not too sure of their misalignment ability. A quality oldham in > the >>>> right size should work fine I think....peace >>>> >>> I've never done any measurements, but figure that the "helical beam", or >>> whatever you want to call them, couplings ought to have the lowest >>> backlash. An Oldham coupling must wear out, Shirley? >>> >>> Erik >>> >>> >> >> > ------------------------------------------------------------------------------ >> 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 >> > ------------------------------------------------------------------------------ > 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 -- Billy Huddleston Inner Vision *William Huddleston Inner Vision Development Corp* Office: 865.560.2752 Fax: 865.560.2703 http://www.ivdc.com *Development and Consulting... Simplified.* <http://www.facebook.com/pages/Inner-Vision-Development/120023721424> <http://twitter.com/ivdc> <http://www.linkedin.com/in/ivdccorp> ------------------------------------------------------------------------------ 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
