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Sprocket top hat washer play

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Sprocket top hat washer play

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Old 03-11-18, 11:58 AM
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Disco Dave
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Sprocket top hat washer play

Hi,
I just got a new sprocket (Stolen cartwheel). I noticed the top hat washer doesn't fit tight into the sprocket, there's just under a mm play between the sprocket and the washer. So when it's on and I turn the sprocket the chain goes from tight to loose, at the same point in every revolution.

Should there be play between the washer and the sprocket like this?
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Old 03-12-18, 09:46 PM
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Originally Posted by Disco Dave View Post
Hi,
I just got a new sprocket (Stolen cartwheel). I noticed the top hat washer doesn't fit tight into the sprocket, there's just under a mm play between the sprocket and the washer. So when it's on and I turn the sprocket the chain goes from tight to loose, at the same point in every revolution.

Should there be play between the washer and the sprocket like this?
No. There are a few sizes and yours isn't correct. it shouldn't have play.
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Old 03-13-18, 08:26 AM
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Originally Posted by n0+4c|u3 View Post
No. There are a few sizes and yours isn't correct. it shouldn't have play.
When you say there's a few sizes, I know of 15/16" to 19mm, 15/16" to 22mm, and 22mm to 19mm.
My sprocket is 15/16" bore and spindle is 19mm.
But the play is only about 0.5mm. Surely if I had a 22mm to 19mm washer the play would be 2mm? Or are there other sizes?
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Old 03-14-18, 06:49 AM
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Originally Posted by Disco Dave View Post
When you say there's a few sizes, I know of 15/16" to 19mm, 15/16" to 22mm, and 22mm to 19mm.
My sprocket is 15/16" bore and spindle is 19mm.
But the play is only about 0.5mm. Surely if I had a 22mm to 19mm washer the play would be 2mm? Or are there other sizes?
You have a sprocket for a one piece crank, on a three piece crank. I did that as well, but I had it machined to 24mm and used this adapter
15/16ths is 23.8mm so if you're using a 22 to 19 adapter you have 1.8mm of play.
https://www.planetbmx.com/shop/sproc...m-adapter.html
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Old 03-14-18, 07:01 AM
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Dan's comp has a 15/16ths to 19mm adapter for 3.95, no machining.
https://www.danscomp.com/products/45...t_Adapter.html
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