standard and non standard chains

[Orionani]

we have purchased a chain "RK 520GXW 1000cc Rated Heavy Duty X'ring Sealed Chain"
but it turned out that the dimensions of the chain were not that of a standard 520 chain coz the roller diameter turned out to be 10.3 mm instead of 10.16 which is standard and the chain would not fit around a sprocket manufactured according to a 520 chain.
has anyone faced such a problem if so what do you do in such a case.
and which other chains to use instead of the above which comes with standard dimensions.

[Orionani]

we have purchased a chain "RK 520GXW 1000cc Rated Heavy Duty X'ring Sealed Chain"
but it turned out that the dimensions of the chain were not that of a standard 520 chain coz the roller diameter turned out to be 10.3 mm instead of 10.16 which is standard and the chain would not fit around a sprocket manufactured according to a 520 chain.
has anyone faced such a problem if so what do you do in such a case.
and which other chains to use instead of the above which comes with standard dimensions.

[Hector]

How much clearance did you account for in your sprocket design? .14 mm (.005") really isn't a lot of clearance.

[Orionani]

We had a local manufacturer to make the sprocket for us. And according to him he had only one cutter for a standard chain of pitch 15.875mm and roller dia 10.16mm... Which means on my sprocket the chain with roller dia 10.3 mm will not fit around the sprocket. Its like fitting a circle of 10.3mm dia inside a circle of 10.16mm dia. So i checked the dimensions of the old chain that i had and its roller dia was 10.16 which fit perfectly around the sprocket. Now i think the problem is much clearer.

[Hector]

Glad you found the problem.

[Spetsnazos]

Ive seen it work before(not in your case but hte opposite), but you eat away at the life of the sprocket.