tony trude 0 #1 Posted April 3 hello,can anyone tell me the size code of the drive chain on old 70s osprey it measures aprox 15mm across pins centres-aprox 5.6mm hole to take pins- aprox 11.4mm thick chain inside-14mm outside-ime trying to find a spring link to fit my mower,thanks Share this post Link to post Share on other sites
Anglo Traction 1,022 #2 Posted April 7 Hello Tony, Only just seen your post. Afraid the dimensions you state don't relate to my faded memory of the chain size. I thought it was a 1/2" pitch (12.7mm)?, but could be 5/8" (15.9mm). The best thing you an do is match yours to a chart and order one. Here is a good chart example by a long established British company. Note:- 1970s machines would have use imperial sizes. Modern chains still use the dimensions, but in metric also. Pin size is very important and needs measuring accurately to ensure a good fit. Chain Chart Share this post Link to post Share on other sites
