Re: Looking for short ballscrew

Jon,

If you are still interested, there are a couple of nice THK
linear rails and blocks on ebay right now.
http://cgi.ebay.com/aw-cgi/eBayISAPI.dll?ViewItem&item=513856383
The THK website says they are good for 4 way loading so mounting
may not be a problem. Some of the rails they sell are only good
for horizontal type loading. Price right now is low but they will
probably go up quite a bit in the last 5 seconds of the auction.

Bill

ps. This is not my auction, I just happaend to see it

> Jon,
>
> On your application, I'd think the ideal would be cross roller

linear

> rails like SKF or IKO make. They should be large, at least the 25

if
not 30

> mm size. I would use bearing blocks with 6 bolts each too. In the

30
mm size,

> the rail bolts get pretty hefty. I gotta agree the fully supported

round

> stuff is pretty good but it is no where as rigid as a THK HSR style

rail. If

> due to availability you are forced to use smaller rails, you can

always

> increase the number of rails and blocks you use to increase load

capacity /

> rigidity.
>
> Peter
> THRD, Inc.