Farmboy71
We have used these on leadscrews where the movement was fairly slow and there was a lot of background motor/gearbox noise.
We did try one out on an air cylinder for a piece of laboratory equipment and although it worked fine, we had concerns about the metal on metal "sliding" noise that was apparent with the relatively fast moving and otherwise silent air cylinder. This was helped by the using some PTFE dry-lube and it would have probably been OK, but as the machine was otherwise completely silent and because we were sending it to the other side of the world, we didn't want to take a chance with it scuffing and getting really noisy, so as it was only short stroke, we used rubber bellows instead.
However, this was a long while ago and I expect the technology has moved on since then, especially in surface treatment to minimise noise and scuffing but I thought I should mention this.
Trevor Clarke. (R & D) Scientific Instruments.Somerset. UK
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