i was looking for a place to source o rings in india and the manufacturer asked for the oring hardness. i read up online around 75 hardness is neutral, lesser than 75 is soft and above 75 is hard. but i couldnt find definite number used for an rov. what to choose
O-Ring Calculator tool i used this for my dimensions as it was told they are sae standards
Hi @tejaa -
The Parker o-ring handbook is the reference I’ve seen used the most across many industries.
What hardness you select will depend on the maximum rating for the seal you’re targeting! Typically deeper depths use harder o-rings to minimize the risk of extrusion, but that’s not an absolute rule…
so for a depth of around 25-30m 75 should be ok right