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I've got a front sprocket I need cut I cannot find anywhere. It's "unusual" in that it has integrated spacers on the drive shaft fitting. The spline fitting should be the same as an RSVR1000, however.
Does anyone know someone in the D/FW (or anywhere, really) area able to reverse-engineer a new sprocket from an old one provided as an example?
http://pmpsprockets.com/customer_service Local, in Wylie.
Getting a front from them, might be a challenge.
They cut a few rear Duc sprockets for me a few yrs ago and was happy with their product.
Thanks.
PMP Doesn't cut fronts.
Try supersprox I think they do custom stuff
Chris coffey
Did you check with Sprocketspecialists.com ?
Can he cut this?Quote:
Originally Posted by Dennis King
Most places are reporting they don't have the broach to cut the drive splines.
Attachment 668
Chris can't do that, 99% certain. You need a legit machine shop for that type of work.
Now if you have a broken one, I'm sure he could weld it back together for you ;)
-Cody
You might try these guys...
http://www.rushgears.com/gear-types/sprocket
nvrmnd
Jim, those inner splines might have to be cut with an EDM. Becka's family shop has one, but I'm not sure what they would charge to do that since they focus mainly on too and die. I'd be happy to check with them though, if you like.
I found out Esjot makes these.
They are a German company so who knows if I can get them or in what quantity I'll have order, but I have a lead on them.
Lots and lots and lots of places make rear sprockets. Front ones, not so much.
We import Esjot. Patience is required but let me see what we can do.Quote:
Originally Posted by Jim Dugger
Is that thing centered or is there an offset?
Quote:
Originally Posted by Jim Dugger
Jim, do you really need the integrated spacer? Seems like it would be fine to have a standard spacer in place. Maybe that would ease the pain of finding what you need.
It's centered, although as long as one side is spot on I bet it would be OK -- the sprocket is retained with a cup that presses against the sprocket body, not the spacer. This is the sprocket from the 1125r Chain Drive race conversion kit.Quote:
Originally Posted by Ted Phillips
If you don't mind looking into this, that would be great. I'm after 4 of them (16-tooth) and could buy as many as 20 as I know a bunch of other guys trying to source them.
Some of it, probably, for durability. Not integrating the spacer at all would mean a lot of power transfer through just 6mm of material, both on my drive shaft and the sprocket.Quote:
Originally Posted by Josh Henke
Email me the spacing distance between the teeth and the end that sits against the engine, or even better a picture like what you have above with both sides measured out. It's the same Rotax shaft as the Aprilia v990, right? Maybe we get lucky and the inner offset is the same as something we have in stock. Worst case we see if Esjot will manufacture a run of 20+.Quote:
Originally Posted by Jim Dugger
So, based on the picture it's (29.15 - 6) / 2 or 11.575mm per side. The spacer is the same on both sides.Quote:
Originally Posted by Ted Phillips
Probably, but I cannot confirm that. There's 18 splines in the ID of the sprocket.Quote:
It's the same Rotax shaft as the Aprilia v990, right?
Ah, so you didn't make that picture. You don't have an actual sprocket to measure? I've got ~8.25mm offset for the Aprilia, but I count 17 splines on ours.
its my pic and my measurements. the actual is at ecr...
I almost passed out from the sudden and prolonged decompression my lungs experienced when I saw this post.Quote:
Originally Posted by Brandon Orr
There are days I miss the belt. The sprockets never wear out... the belts last about as long or better than the chain.
Sigh...
I knew it would take someone with a higher level of intelligence to understand the joke.Quote:
Originally Posted by Sean Gurevich
Ok, it's an EBR Part Number: G0440.09AZ -- can you get those, Ted? Apparently there's 58 in stock.
We can get EBR parts through PU but not the older Buell parts. Do you know who has 58 in stock? If it's PU I can ask our Rep to allow us to order them.
Should be a PU available part. It's an EBR part number.
I'm givin' it's all she's got, captain!
Attachment 673
Ugh, sorry for sending you on a goose chase.
I know why they aren't showing up now. They are made of real unobtanium. Meaning, they exist, but cannot be had.
Can we contact Esjot?
I've had 3 other vendors in the US respond they don't make fronts...
I cannot.Quote:
Originally Posted by Jim Dugger
The thing that makes that hard is the big thick center where the output shaft goes.
I have had timing sprockets made, but not drive sprockets like that.
Let me know if you can't find someone, I have some contacts but will have to dig for them.
Who made the one you have? Esjot? Think I got lost on how you got one but cannot get more.
http://www.motorcycle.com/news/harle...ell-88821.html
http://www.sportrider.com/erik-buell...s-receivership
These articles should answer your questions! Show some compassion! Jimmy, please excuse this Austin Hipster! LOL!
Maybe you could use an adaptor like this.
A large production run of these in 16, 17 and 18 tooth sizes was done years ago as part of the Buell race program. When Buell was shut down, EBR took over race-specific parts, while HD was left Buell OEM/street parts. These came over to EBR.Quote:
Originally Posted by Josh Henke
A few years back, I ordered a number of these, and a few seasons later, I'm down to my last 16-t. They seem to last about season or season and a half. I have a couple of 17-t, so if push comes to shove I can go to a longer chain and larger rear sprockets, but I'd rather not.
The reason the part number turned out to be a goose chase is race parts for EBR aren't distributed by Parts Unlimited, only street parts are. So, basically, what I need exists, it exists in quantity, and it's owned by a guy from New Jersey who had a couple of million lying around to buy EBR out of receivership. I gotta wait until he comes back on line and gives me a way to order them, apparently. Or, get them from Esjot directly.
It's nuts, I tell you.
I'd be more than happy to see what it would take for them to supply. If they've made them before it's a simple matter of putting them on order. If they need to custom make them it would be best if you could send me a used example so we get it right the first time. Please note that we've had some 40t rears on order since February so as I hinted above, patience will be required.Quote:
Originally Posted by Jim Dugger
As a former knuckle dragging drag racer, why don't you just make the part? Call Mark Williams. They build their own car drag racing rear differential parts and can cut splines. Have the splines cut into a steel sleeve. TIG weld said sleeve onto pre-case hardened or a Chrome-Moly sprocket. Chopper guys do it all the time. Yes their motor's make less power, but the bikes weigh a hell of a lot more though. No it won't be cheap, but it is an option.
Also, as long as the splined section is in good shape you could just cut the worn out sprocket off and TIG weld on a good one. Again, an option.