Quote:
Originally Posted by MICHAELABICK
I've heard that for #35 chain, if you space the sprockets 3/4 in away from each other, you do not need tensioners? Is this true, and if so, where is the measurement taken from? Furthermore, do most teams prefer using this message, or machining bearing blocks? Thanks in advance.
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Do you mean to say that you increase the normally calculated center distance (note that the distance should be center to center for a two sprocket system) by 3/4"? I've never heard this myself, but I think that might be too far; the pitch of 35 chain is only 3/8", so doing this would make the chain two links too short - and I don't think you want to stretch that far.
The problem with chain is that it starts to stretch and sag no matter what you do, so having tensioners allows you to keep a chain longer. You just keep tightening it as slack develops. Your chain life also improves when it's at the correct tension which is why you should do the center distance calculation. There are simple online tools to handle it, but it's based on fairly basic geometry and you can do it by hand as well.
Can you clarify the last question?