chain guide or roller??

#1
I searched but never saw an answer to this .

I have a bronco tx? with jackshaft and #35 chain , after some adjusting I see that the rear sprocket could use some sort of guide to stop any chance of the chain falling off.

would a roller do it best or maybe one of them bolt on things the cart guys have on there sprockets?

I am thinking roller and if so how does one build this ?
 
#2
I like using rollers vs idler sprockets because there are no teeth to mis-pitch and cause chain jump...

I'm not showing any pics of mine...they're half steampunk/half Rube Goldberg, and I doubt that's what you're looking for...
 
#3
I like using rollers vs idler sprockets because there are no teeth to mis-pitch and cause chain jump...

I'm not showing any pics of mine...they're half steampunk/half Rube Goldberg, and I doubt that's what you're looking for...
any pics would help and I do not care if they are not show bikes as it has to work befor it can look good!
 
#5
some people use small skateboard wheels.
:punk: I was going to quote Yellowhands "Rube Goldburg Device" :lol: cuz NOBODY says that name anymore.. :lol: But YEAH skateboard wheels make AWESOME rollers.. they have GOOD ball bearings in them, are hard ass rubber but softer than the steel chain, you can even cut a groove to aim the chains angle too....
.. I just build my rollers for the Suicycle from a piece of that 1 1/2 black plastic irrigation pipe.. like a 1 1/2 inch long chunk with two bearings pressed into it.. The thin plastic causes the chain to pretty well chainsaw it's self through the tube.. But I have to change it maybe twice a year. :shrug: and that is on a bike that may as well be a motorcycle. It's got thousands of miles on it.. I have some sk8-board wheels I plan to make a better one from if i ever do anything at all to the bike.. Mine is just a couple tabs that mount to the rear of the frame.. there is a nut welded to the back of the inside mount, I stick the roller in and run a Briggs head bolt into it finger tight.. The direction of the roll on the wheel ensures the bolt can't back out so I leave it loose.... THEN if I am 30 miles fro home and the roller gives out.. I just grab a new one out of the tool box and screw it on there finger tight and go again... :thumbsup:
 
#6
i also used a primary chain adjuster shoe from a Harley as a guide one time. i needed it to keep the chain from hitting the engine plate and it worked great. you can get them for about $4 at any Harley dealership.
 

delray

Well-Known Member
#7
here is one of my projects with a roller wheel that i machine out a grove for the chain to ride on. works good and also keeps the chain noise down too.:smile:


also you could go with a fix mount adjustment like the doodle bugs have.

 
#8
Here is one I built. It serves more as a tensioner for my application. But it's a roller skate wheel and bed frame. Then I built my guard right off of it. Search Delrays threads. He has made some very nice one's that mount to the frame. Also, maybe post a photo of your situation. It's not to often you need one..


 
#9
Thats damn good thinking Randy, we all seam to agree on a slot in the wheel, but A LOT of people aren't smart enough to make a good long arm for the tensioner to ride on, and attach the spring right up near the wheel.. Many people will use a real short arm or the spring not choked up far enough.. And it just bounces wildly something fierce. EXTREME chain lash... :doah: That long one like that gives you far far more leverage pulling the chain into the system.. :thumbsup:
 
#11
I went from wondering what I can do TO having a parts list of stuff to find/buy!!

Thanks so much.
Don't buy anything. My steel is bead frames from peoples trash, and the roller skates are out of the trash as-well.

I personally like Delray's but in my case I did a jack shaft delete and needed it to keep the chain from hitting the plate and also to keep it snug through the suspension travel. It works real well.
 

delray

Well-Known Member
#13
The Restore Kid
Many people will use a real short arm or the spring not choked up far enough.. And it just bounces wildly something fierce.
short arm is not what causes the chain to bounce. more like a soft spring would cause that type of problem. just have to makesure you use a good stiff spring...........
 
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