Older Rockwell RC-33 model 22-650 outfeed roller jammed NEED HELP

[Sue Iskenderian]

I have no idea why or how this happened. Maybe I fed a board into the planer before the previous board was out. I don't know. But here is the story. I realized the boards were not feeding into the planer, and then I noticed the chain that turns the rollers hanging down. The chain had broken at the master link, and so I purchased another and put it back together only to notice that several of the teeth on the outfeed roller sprocket had broken off. I tried to turn the outfeed sprocket with channel locks, and it absolutely will not turn. I have no idea why or where I could find a replacement sprocket if I could figure out why it will no turn. Anyone out there an expert on this machine?

[Maurice Mcmurry]

I have worked on several planers but not your model. Could a knot, a chunk of wood or a broken bit of the old chain link be jammed in the roller or sprocket? I suppose a bearing could have failed so completely that it locked up. It is sad to see that very few parts are available. A good machine shop should be able repair or reproduce that sprocket or retrofit a stock cog. I did some troubleshooting on mine with a flashlight and a tiny inspection mirror on a wand.

https://www.ereplacementparts.com/de...571_13776.html

[Bill Dufour]

It may be cheaper to get three new sprockets that are close in size rather then have one custom made. If it is easy I would unbolt both bearings and lift the roller out to find the jam or failed bearing(S).
Bill D.
https://www.youtube.com/watch?v=q9VqHeBJTxw

[Sue Iskenderian]

Hi Bill, Thanks for that great video. Well, I took the out feed roller out and I think I may have found the problem, even though I still don't know how it happened. One of the springs got bent, and I may be able to straighten that but where on Earth could I find that duplex sprocket. I have a part number, 428-06-134-0003 but don't know where I could find one like that. Do you know of a good source for sprockets?

[Sue Iskenderian]

Thanks Maurice, I followed the link you sent and found the sprocket, it says it's discontinued. Yes, it is sad, since it is a good solid machine. It was my fathers, he left it to me. I hope I can find a way to replace the sprocket, because I would love to restore it, in honor of him, as he always found a way to fix almost everything, except himself, when he got Alzheimers.

[Bill Dufour]

Is the sprocket one piece or two spring loaded? If single I would check Browning, Martin, Boston gear or Dodge. You need to know the bore, tooth count and chain pitch. As I said it may be cheaper to buy three stock sprockets instead of one custom one to match.
Is it one double chain or two single chains?
Bill D
https://www.martinsprocket.com/docs/...et-catalog.pdf

https://dodge.ptplace.com/productSea...Key=9AAC176980

https://www.bostongear.com/products/...hain-sprockets

[Bill Dufour]

No idea if this is close but gives ideas price wise. Would a cogged belt drive fit?
Bill D
https://www.surpluscenter.com/Brands...T-1-5703-G.axd
https://www.surpluscenter.com/sprockets-roller-chain/?gad_source=1&gclid=EAIaIQobChMI076H9NWEhQMVXdLCBB 3jUQL9EAAYASAAEgJnz_D_BwE

[Sue Iskenderian]

It is what is called a duplex sprocket. 5/8" bore with key, 27 teeth, 3 3/8" diameter. Thanks for the resources Bill.

[andrew whicker]

It sounds like the sprocket isn't the problem, but a symptom?

Did you get the roller to roll over by hand? I'm in agreement that maybe sleeve bearing failed and the roller shaft welded itself to the bearing? IDK.

Photos?

[Richard Coers]

https://www.mcmaster.com/products/sprockets/

[Sue Iskenderian]

I got the roller out. It would not turn by hand. I finally got it freed up with PB blaster and much persuasion. The shaft was slightly scored. I smoothed it off, and got it to spin again in the bearing. The spring was slightly bent too. I can send photos of the damages. . How do I do that?

[Bill Dufour]

I would replace the chain since it is off already.

[Jerry Bruette]

I got the roller out. It would not turn by hand. I finally got it freed up with PB blaster and much persuasion. The shaft was slightly scored. I smoothed it off, and got it to spin again in the bearing. The spring was slightly bent too. I can send photos of the damages. . How do I do that?

Photos can be sent as an attachment. You can't see them unless you're a contributor, and it's worth the six bucks.

[Ronald Blue]

Whether it's the same or not is hard to say. Grizzly often has parts that interchange with other brands. Even though you have a vintage American made machine many of todays machines are still based on those designs. It's at least very close. Maybe someone that has one can confirm shaft size and teeth count.

https://www.grizzly.com/parts/grizzl...0?op=p0453z053


https://cdn0.grizzly.com/partslists/g0453zx_pl.pdf

[Sue Iskenderian]

Yes, Ron, that Grizzly part looks very close. I will call Grizzly tomorrow and get more details. Thank you for sending that. It is the closest I have seen so far.