- #1
Mike_In_Plano
- 702
- 35
Hello,
I'm puzzling over the likelihood of building a dry-running air motor for 25khrs @5-20kRPM.
I'm considering whether a small gear pump arrangement would doe the job - it only needs to output 6 shaft watts, but I'm concerned about wear.
Standard gears are avalable in steel and delrin, and with a bit of searching, in ceramic. I'm wondering what would be a good combination of materials between the endplates and gear. It seems that the endplates would have to be under a bit of compression to ensure that the air leakage doesn't become excessive over time.
Does this seem a reasonable conjecture?
It also seems the endplates would be a complimentary material:
Steel vs teflon loaded delrin plate
Ceramic vs teflon loaded delrin plate
Delrin vs Hard steel
Finally, how would one go about accelerating wear testing?
Well, I guess that wraps it up (and then some :)
Best Regards,
Mike
I'm puzzling over the likelihood of building a dry-running air motor for 25khrs @5-20kRPM.
I'm considering whether a small gear pump arrangement would doe the job - it only needs to output 6 shaft watts, but I'm concerned about wear.
Standard gears are avalable in steel and delrin, and with a bit of searching, in ceramic. I'm wondering what would be a good combination of materials between the endplates and gear. It seems that the endplates would have to be under a bit of compression to ensure that the air leakage doesn't become excessive over time.
Does this seem a reasonable conjecture?
It also seems the endplates would be a complimentary material:
Steel vs teflon loaded delrin plate
Ceramic vs teflon loaded delrin plate
Delrin vs Hard steel
Finally, how would one go about accelerating wear testing?
Well, I guess that wraps it up (and then some :)
Best Regards,
Mike