CAD CAM EDM DRO - Yahoo Group Archive

Re: [CAD_CAM_EDM_DRO] Re: Max feedrate of ball screws?

Posted by alex
on 2002-12-05 09:12:52 UTC
http://www.ondrives.com sells rotating nuts/ballscrews combos.
See item #BSEB, for example.
Alex
----- Original Message -----
From: Les Watts <leswatts@...>
To: <CAD_CAM_EDM_DRO@yahoogroups.com>
Sent: Thursday, December 05, 2002 10:41 AM
Subject: Re: [CAD_CAM_EDM_DRO] Re: Max feedrate of ball screws?


> Seth,
> you are right in that rotating nuts require a good bit of expensive
> engineering
> and machining work. Rotating nuts generally have to be rated for that
> use.... it usually means some degree of dynamic balancing and attention
> to grease flow with the acceleration forces.
>
> But they sure can be high performance!
>
> For the conventional approach just use a larger diameter higher lead
> screw. A 0.625 screw 60 inches long is getting kinda dicy with awfully
> low critical speed and buckling load. I read 350 lb max load and
> 220 ipm critical speed fixed fixed.
>
> A 1" screw with 0.5" lead gives 3000 lb buckling load and 975 ipm
> critical speed fixed fixed. It is still pretty respectable fixed simple.
>
> This data is from Nook tables.
>
> Les
>
> Leslie Watts
> L M Watts Furniture
> Tiger, Georgia USA
> http://www.alltel.net/~leswatts/wattsfurniturewp.html
> engineering page:
> http://www.alltel.net/~leswatts/shop.html
> Surplus cnc for sale:
> http://www.alltel.net/~leswatts/forsale.html
> ----- Original Message -----
> From: "dgmachinist" <scsm@...>
>
>
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Discussion Thread

dgmachinist 2002-12-04 18:48:33 UTC Max feedrate of ball screws? Robert Campbell 2002-12-04 19:26:08 UTC Re: [CAD_CAM_EDM_DRO] Max feedrate of ball screws? dgmachinist 2002-12-04 19:35:31 UTC Re: Max feedrate of ball screws? Howard Bailey 2002-12-04 19:52:42 UTC Re: [CAD_CAM_EDM_DRO] Re: Max feedrate of ball screws? High Tech 2002-12-04 20:03:36 UTC RE: [CAD_CAM_EDM_DRO] Max feedrate of ball screws? Jon Elson 2002-12-04 22:05:21 UTC Re: [CAD_CAM_EDM_DRO] Re: Max feedrate of ball screws? dgmachinist 2002-12-05 03:19:50 UTC Re: Max feedrate of ball screws? Peter Seddon 2002-12-05 03:32:43 UTC Re: [CAD_CAM_EDM_DRO] Max feedrate of ball screws? Les Watts 2002-12-05 07:40:12 UTC Re: [CAD_CAM_EDM_DRO] Re: Max feedrate of ball screws? alex 2002-12-05 09:12:52 UTC Re: [CAD_CAM_EDM_DRO] Re: Max feedrate of ball screws? CL 2002-12-05 09:36:22 UTC Re: [CAD_CAM_EDM_DRO] Re: Max feedrate of ball screws? Bill Vance 2002-12-05 10:34:44 UTC Re: [CAD_CAM_EDM_DRO] Re: Max feedrate of ball screws? torsten98001 2002-12-05 13:06:40 UTC Re: Max feedrate of ball screws? dgmachinist 2002-12-05 14:18:02 UTC Re: Max feedrate of ball screws? Erie Patsellis 2002-12-05 16:47:09 UTC RE: [CAD_CAM_EDM_DRO] Re: Max feedrate of ball screws? Marv Frankel 2002-12-05 17:03:24 UTC Re: [CAD_CAM_EDM_DRO] Re: Max feedrate of ball screws? dgmachinist 2002-12-05 17:16:46 UTC Re: Max feedrate of ball screws? blown_mgb_v8 2002-12-05 17:44:57 UTC Re: Max feedrate of ball screws? dgmachinist 2002-12-05 17:50:58 UTC Re: Max feedrate of ball screws? JanRwl@A... 2002-12-05 20:43:10 UTC Re: [CAD_CAM_EDM_DRO] Re: Max feedrate of ball screws? JanRwl@A... 2002-12-05 21:09:43 UTC Re: [CAD_CAM_EDM_DRO] Re: Max feedrate of ball screws? JanRwl@A... 2002-12-05 21:12:53 UTC Re: [CAD_CAM_EDM_DRO] Re: Max feedrate of ball screws? Marv Frankel 2002-12-05 23:15:23 UTC Re: [CAD_CAM_EDM_DRO] Re: Max feedrate of ball screws? torsten98001 2002-12-06 13:51:41 UTC Re: Max feedrate of ball screws? dgmachinist 2002-12-06 14:13:37 UTC Re: Max feedrate of ball screws? Erie Patsellis 2002-12-06 14:27:36 UTC RE: [CAD_CAM_EDM_DRO] Re: Max feedrate of ball screws? echnidna <echnidna@y... 2002-12-06 15:55:24 UTC Re: Max feedrate of ball screws? Chris L 2002-12-06 16:59:10 UTC Re: [CAD_CAM_EDM_DRO] Re: Max feedrate of ball screws? Chris L 2002-12-06 17:14:27 UTC Re: [CAD_CAM_EDM_DRO] Re: Max feedrate of ball screws? Chris L 2002-12-06 21:19:35 UTC Re: [CAD_CAM_EDM_DRO] Re: Max feedrate of ball screws? echnidna <echnidna@y... 2002-12-07 01:53:24 UTC Re: Max feedrate of ball screws? torsten98001 <torsten@g... 2002-12-07 12:08:02 UTC Re: Max feedrate of ball screws? dgmachinist <scsm@m... 2002-12-07 13:39:36 UTC Re: Max feedrate of ball screws? alex 2002-12-07 17:02:01 UTC Re: [CAD_CAM_EDM_DRO] Re: Max feedrate of ball screws? alex 2002-12-07 17:29:54 UTC Re: [CAD_CAM_EDM_DRO] Re: Max feedrate of ball screws? echnidna <echnidna@y... 2002-12-07 18:37:12 UTC Re: Max feedrate of ball screws? echnidna <echnidna@y... 2002-12-07 19:03:01 UTC Re: Max feedrate of ball screws? echnidna <echnidna@y... 2002-12-07 19:07:06 UTC Re: Max feedrate of ball screws? Chris L 2002-12-07 19:41:57 UTC Re: [CAD_CAM_EDM_DRO] Re: Max feedrate of ball screws? alex 2002-12-08 14:55:01 UTC Re: [CAD_CAM_EDM_DRO] Re: Max feedrate of ball screws? Chris L 2002-12-08 17:42:52 UTC Re: [CAD_CAM_EDM_DRO] Max feedrate of ball screws? dgmachinist <scsm@m... 2002-12-08 18:13:00 UTC Re: Max feedrate of ball screws? Chris L 2002-12-08 18:22:39 UTC Re: [CAD_CAM_EDM_DRO] Re: Max feedrate of ball screws? C.S. Mo 2002-12-08 18:31:17 UTC FS: Small Grizzly Mill/Drill & Aluminum Stock Denis Casserly 2002-12-09 08:17:32 UTC Re: [CAD_CAM_EDM_DRO] Re: Max feedrate of ball screws? Jon Elson 2002-12-09 10:11:50 UTC Re: [CAD_CAM_EDM_DRO] Re: Max feedrate of ball screws? Chris L 2002-12-09 22:18:29 UTC Re: [CAD_CAM_EDM_DRO] Re: Max feedrate of ball screws?