Greaseless TFE Leadscrews in cleanrooms

[jjellin]

I am looking for greaseless leadscrews for use in semiconductor cleanrooms. There telfon coated leadscrews (specifically I have used in the past leadscrews made from Kerk Motion Products). Greased leadscrews have been used at my current job in the past, but for ease of maintence, I want to switch to greaseless. I'm curious if anybody has used them in the cleanroom, and if you can tell me about how "clean" they are (especially compared to a greased screw).

Thanks,
Jason

 

[pjhype]

Try looking into a material called Turcite for the lead screw bushing. In the past, I have removed the metallic bushings that are used in typical leadscrews and replaced them with Turcite, which is a self-lubricating polymeric material. The big advantage is that you do not have to lubricate them and they will run on a typical metallic leadscrew. I believe that you can qualify Turcite for class 100-1000 cleanroom applications.

pj