Vendors selling o rings?

[wafter]

I ordered from them: not directly, because they don't deliver to Australia, but via their eBay seller.

Good work

Ordering direct is good for larger quantities as the O-rings are dirt cheap and it offsets the postage cost.. but for small bits like yours ebay is definitely the way to go.

Impressed that they'll ship to Oz!

 

[Tenkaykev]

When I was working we regularly did maintenance at a factory that manufactures O rings. The set up is incredible with rows of automated machinery. What surprised me was that every single O ring is inspected for flaws automatically and faulty ones are blown from the line with a jet of air into a reject hopper where they then get recycled.
A variety of different ratios of " rubbers " to give the O rings the required properties ( chemical resistance, temperature range etc ).
We worked on the raw material pumps where the temperature differential between the pump end of motor shaft ( liquid nitrogen) and the cooling fan end for the motor windings (~80 C ) over a distance of about 500 mm posed some unique challenges as the temperature differential would induce currents in the motor bearings causing premature failure within a few hours unless preventative measures were taken.

 

[geordie458]

I'm looking for a vendor that sells the type of rubber o rings suitable for securing mounts (for lights, GPS, etc.) to bicycles, and I'm not having much luck finding any online. Several years ago, I bought a pack of o rings, but I'm starting to run out of them, and I can't recall the vendor I used back then.

I know what you mean, it's annoying when such a simple part is hard to track down. Have you tried looking at plumbing or industrial seal shops? As long as the material is weather-resistant, they work exactly the same as the ones sold specifically for bikes. Just gotta make sure they aren't too stiff to stretch over the mounts.

 

[geordie458]

I'm looking for a vendor that sells the type of rubber o rings suitable for securing mounts (for lights, GPS, etc.) to bicycles, and I'm not having much luck finding any online. Several years ago, I bought a pack of o rings, but I'm starting to run out of them, and I can't recall the vendor I used back then.

I've been in the same boat. It's surprisingly hard to find the right tension and thickness for those mount rings once the originals snap. Standard plumbing o-rings are usually too stiff and end up cracking.

 

[slowmotion]

Simply Bearings sell them. Ebay has loads of them too.

edit: For mounting, you'll need an elastic material. A specialist supplier should be able to advise you about a suitable type of synthetic rubber.

 

[Moodyman]

I know the OP has bought some, but for anybody else, hair bands are a good substitute and readily available.