Luke Rickert
Hot Rolled
- Joined
- Oct 24, 2007
- Location
- OSLO
I know that all normal ballscrews will backdrive and therefore are not used in manual machine tools without brakes. That said I have a Schaublin 135 lathe which is a manual lathe that uses a ballscrew for the Z axis (long), I believe it is a rotating nut and as far as I know it does not have any sort of automatic brake. It does not backdrive under moderate loads (the DRO shows no movement when facing etc without any manual lock) This would indicate that perhaps not all ballscrews backdrive or it could also be that Schaublin did something tricky to prevent it from happening.
At some point in the near future I would like to replace the Y axis screw and nut on that machine as it is both rusted and inch pitch, buying a new screw and nut from Schaublin is an option (a very expensive one) but it is also possible to get a ballscrew with a very low helix angle and correct pitch and "hand" (such as the 20x2 in the title). I would need to squeeze the nut in there but that is manageable I think. I don't really want to spend the money on the screw and nut just to find out it is not a workable solution so I am curious if anyone has first hand experience with this sort of thing?
What about a Satellite Roller Screw?
thanks
Luke
At some point in the near future I would like to replace the Y axis screw and nut on that machine as it is both rusted and inch pitch, buying a new screw and nut from Schaublin is an option (a very expensive one) but it is also possible to get a ballscrew with a very low helix angle and correct pitch and "hand" (such as the 20x2 in the title). I would need to squeeze the nut in there but that is manageable I think. I don't really want to spend the money on the screw and nut just to find out it is not a workable solution so I am curious if anyone has first hand experience with this sort of thing?
What about a Satellite Roller Screw?
thanks
Luke