What'cha doing air gun related today?

[Soren Drost]

That is awesome. What size arbor press is that, how many tons of force?

My arbor press is a 2 ton version - more than enough for swaging .177 slugs and pellets

 

[TN_Yankee]

Maybe I should try a thinner o-ring or better quality before I give in.

I don't have personal experience with this kind of problem, but from what I've read, you may want to try a regular Buna-N o-ring, but with a 90D durometer (i.e. harder than the typical 70D used in air guns). Another option would be polyurethane, which is more abrasion-resistant than Buna-N.

 

[Murfdurf82]

I don't have personal experience with this kind of problem, but from what I've read, you may want to try a regular Buna-N o-ring, but with a 90D durometer (i.e. harder than the typical 70D used in air guns). Another option would be polyurethane, which is more abrasion-resistant than Buna-N.

I'm lucky enough Omaha has an o-ring specialty store so tomorrow I should be running to that part of town and I'm going to check it out. Worst part of the PCP is how much we pay on-line for gun specific o-ring kits. I need to find a few more sizes on my list of O-rings that I need and check it out. Having some extra is always nice and not paying 18$ for 1 kit from one vendor and then having to go to another vendor for a different gun.

 

[TN_Yankee]

Yes, you need to compile a list of all the o-rings you need for your guns, then buy in bulk from a specialty retailer. You'll end up with dozens more than you need (for now), but it's still way cheaper than buying by a kit. My last purchase was for 680 o-rings (in about 30 sizes) for $32 shipped.

Orings and More | Metric Orings and Hydraulic Seals
The O-Ring Store LLC, We make getting O-Rings easy!
O-RINGS / ORINGS
McMaster-Carr

 

[Scriv]

Did a bit of pesting today. Don't do it often, but occasionally needs to be done.