Zyndell 0 Posted June 18, 2018 Hey guys, Proud owner of a S&S DX-2G with YS-01 strobe, which have both served me well for years. After all this time, I've noticed though, that the O-Rings on the arms (S&S arm 7) are starting to get very brittle. Just to be clear: I am talking about the thick O-Rings that help stabilize the joints of the arm in a certain position. Now I'd like to replace those sooner rather than later, and preferably before I get to Bali in August. Does anyone have any idea, where I might be able to purchase a set of those 4 O-Rings? I've gone through plenty of sites and online retailers, but they all only seem to offer replacement O-Rings for the strobe itself, not for the arm though... Any tips or advice welcome! Cheers for the help Share this post Link to post Share on other sites
marcw 8 Posted June 18, 2018 i bought a 100 off ebay for ULCS arms about a year ago. Check ebay out. Share this post Link to post Share on other sites
bvanant 136 Posted June 18, 2018 can you remove one and measure it or at least take a picture of it next to a good mm scale? thanks Bill Share this post Link to post Share on other sites
bvanant 136 Posted June 18, 2018 If they are the o-rings on a one inch ball (most likely), then you want then it is a 2-209, https://www.amazon.com/209-Buna-N-Ring-Durometer-Black/dp/B000FMYPM2/ref=pd_bxgy_328_2?_encoding=UTF8&pd_rd_i=B000FMYPM2&pd_rd_r=AF6Y16GZPJ9KX92YXT8A&pd_rd_w=5zfN4&pd_rd_wg=Ulpe2&psc=1&refRID=AF6Y16GZPJ9KX92YXT8A $10 for 100 Bill Share this post Link to post Share on other sites
Zyndell 0 Posted June 19, 2018 (edited) Ha, now there's an idea! I did manage to take one off without ripping it. I measured 28mm in diameter with a strength (thickness) of 5 mm. The ones you linked on amazon seem a little bit smaller, with a diameter of 24mm and a strength of 3,5mm. But based on my measurements, I'll see what I can find online. Thanks, you have been very helpful! Edited June 19, 2018 by Zyndell Share this post Link to post Share on other sites
SwiftFF5 109 Posted June 19, 2018 Check McMaster-Carr, they have a huge selection of O-rings. https://www.mcmaster.com/# Share this post Link to post Share on other sites
bvanant 136 Posted June 19, 2018 https://www.mcmaster.com/#o-rings/=1dcqhik 5 mm thickness, 18 mm ID, 28 mm OD $ 6 for 25 of them. At the o-ring store http://www.theoringstore.com/index.php?main_page=product_info&cPath=368_12_173&products_id=18164 $0.36 each and you need to order at least 2 Bill Share this post Link to post Share on other sites
