Re: [CAD_CAM_EDM_DRO] Re: rolled ball screws

Hi Steve

I may not have remembered the HIWIN quote correctly,
but I am glad that other manufacturers are getting more
competitive with lower prices. I was curious and did a search
on the subject and found others are starting to offer oversize
ball preloaded rolled screws-even Thompson.

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: <tacman@...>
To: <CAD_CAM_EDM_DRO@yahoogroups.com>
Sent: Wednesday, January 08, 2003 7:16 PM
Subject: [CAD_CAM_EDM_DRO] Re: rolled ball screws


> Hi Les,
>
> This thread was started after I had a chat with a knowledgeable rep at
> Roton. He said they will preload the ball nut to any "tightness" the
> customer wanted. He faxed a written quote within one hour of the
> conversation with prices well below what you were quoted for HIWIN
> components.
>
> I had never heard of preloading ball nuts this way and wanted to get
> an objective opinion.
>
> Previously, I had discussed the preloading option with a tech rep at
> THK. This is the same way they preload their LM guides. Unless I
> misunderstood, preloading increases the life of the guide and is the
> difference between Standard and Precision LM guides.
>
> Regards
>
> Steve
>