Originally Posted by MungoP
and presumably the grease permanently resides between the pin (or axle) and the roller which covers the pin and contacts the sprocket, yes?
So if you've killed a chain and want to check whether there is any grease still on a link, you could cut the two O-rings off half a link and wiggle the roller from one side to the other and ....
Anyone got a dead chain ?
I dissected a chain once and did a post on it, if you want to see what happens when o-rings go missing: http://www.advrider.com/forums/showt...92#post7124392
The grease actually doesn't have anything to do with the rollers that contact the sprocket. There is an "outer pin" that the roller rides on and the grease is between that and the "inner" pin...or "axle" as you called it. Hope that makes sense. The link post might make it more clear, has pictures.
Sorry for the hijack, just trying to help out the curious.