- #1
Jynx18
- 13
- 0
not sure if my title is the most accurate but here is what I am asking. I will give general dimensions and weights in case it makes any difference. **EDIT** This is a pnuematic gun if you couldn't tell and if it makes any difference.**
You have a hollow aluminum tube ~7/8" I.D. Inside the tube slides a plastic (delrin) bolt approximately 3" long. The bolt slides back and forth about 1". The bolt is lightweight at less than 1 oz. The bolt fits in the sleeve with minimal wiggle and can freely slide back and forth. The configuration is in the horizontal position.
So the question is would there be less wear on the aluminum sleeve if the bolt retains full surface area and contacts the breech at all points around it and for its whole length or would reducing the surface area to 2 to 3 small rings around the bolt at different points reduce wear. Intuition would say reduced surface area would reduce wear but wouldn't the reduced surface area mean increased pressure on the contact points leading to higher wear? Main concern is on wear of the aluminum tube but insight on wear of the bolt would be nice too.
Is there some sort of general rule on this or is it very specific to the problem? The reason for the concern is it is possible for the bolt to undergo 100,000+ cycles and minimizing wear on the aluminum tube would be a plus.
If you need any other info let me know. Thanks
You have a hollow aluminum tube ~7/8" I.D. Inside the tube slides a plastic (delrin) bolt approximately 3" long. The bolt slides back and forth about 1". The bolt is lightweight at less than 1 oz. The bolt fits in the sleeve with minimal wiggle and can freely slide back and forth. The configuration is in the horizontal position.
So the question is would there be less wear on the aluminum sleeve if the bolt retains full surface area and contacts the breech at all points around it and for its whole length or would reducing the surface area to 2 to 3 small rings around the bolt at different points reduce wear. Intuition would say reduced surface area would reduce wear but wouldn't the reduced surface area mean increased pressure on the contact points leading to higher wear? Main concern is on wear of the aluminum tube but insight on wear of the bolt would be nice too.
Is there some sort of general rule on this or is it very specific to the problem? The reason for the concern is it is possible for the bolt to undergo 100,000+ cycles and minimizing wear on the aluminum tube would be a plus.
If you need any other info let me know. Thanks