Router Bits Off-Centered - Page 3 - Router Forums
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post #21 of 44 (permalink) Old 07-23-2018, 01:26 PM Thread Starter
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That's quite unfortunate. I bought it off a relatives co-worker a year ago but didn't try using it until recently... which I realize sounds pretty ridiculous. Hopefully replacing it wouldn't be that expensive, but as you say it probably would be.
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post #22 of 44 (permalink) Old 07-25-2018, 06:41 PM
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Turn the rotor by hand, and see if you can feel any roughness. If so then it's for sure a bearing. If you can take the unit apart, and get at the bearings, then do so. Guaranteed since it is a Craftsman the bearings are a standard size. So go to a local supplier and have them match it/them. The bearings should only be a few dollars. Milwaukee, Bosch, and Makita are all good products.
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post #23 of 44 (permalink) Old 07-25-2018, 08:46 PM
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the bearing will have a number printed on it, that number is the manufacturers part number, and it can be looked up on Google, it's VERY doubtful those bearings are discontinued by the manufacturer, since it would be a standard size, useable for many other applications. Ryobi DOES have a troubling planned obsolescence and quality issues, although tools made for Craftsman are better quality, the planned obsolescence remains..
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post #24 of 44 (permalink) Old 07-25-2018, 09:29 PM
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Quote:
Originally Posted by radios View Post
Ryobi DOES have a troubling planned obsolescence and quality issues, although tools made for Craftsman are better quality, the planned obsolescence remains..
Craftsman tools have proprietary parts, router bearings is one of them...

This would have been the week that I'd have finished chewing thru the restraints...
If only new layers hadn't been added....

Stick....
Forget the primal scream, just ROAR!!!
"SNORK Mountain Congressional Library and Taxidermy”
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post #25 of 44 (permalink) Old 07-26-2018, 01:28 AM
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I don't have info about the bit mounted in the router, but the run out that I could see in the GIF was about half of the bearing height. I think the router has been mishandled at some stage (maybe dropped or knocked of a bench with a bit mounted) that has resulted in a bent spindle between the lower bearing and collet. Generally the clearance between the armature and the field windings is kept to an absolute minimum as a significant gap reduces efficiency, and for the run out that I could see in the GIF, the armature would have to be poling (rubbing against the field windings) if all of the issue was caused by failing bearings. A simple test for this would be to disconnect the router from power, and rotate the armature/collect a few turns by hand, if you hear or feel a rhythmic scraping, or rubbing then at least the bearings are suspect. The only true way to check the armature is to dismantle the router and mount the armature between centres in an accurate lathe and measure the runout at various accessible points along the spindle. Do you have access to a decent experienced machinist?
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post #26 of 44 (permalink) Old 07-27-2018, 03:34 PM Thread Starter
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It hard to tell if I can feel roughness or not, but now that it's in a hundred pieces, I can see the bearing sort of hit a flat spot when rotated. Thanks!
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post #27 of 44 (permalink) Old 07-27-2018, 05:59 PM
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If you can feel that then it's bad.

Someone I consider a master woodworker once told me that a master woodworker is not someone who never makes mistakes. He is someone who is able to cover them up so that no one can tell.
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post #28 of 44 (permalink) Old 08-19-2018, 01:04 PM Thread Starter
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I finally got a new bearing, and unfortunately that wasn't the problem. Do you know what else I might be able to check?
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post #29 of 44 (permalink) Old 08-19-2018, 04:02 PM
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bent armature

This would have been the week that I'd have finished chewing thru the restraints...
If only new layers hadn't been added....

Stick....
Forget the primal scream, just ROAR!!!
"SNORK Mountain Congressional Library and Taxidermy”
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post #30 of 44 (permalink) Old 08-19-2018, 04:54 PM
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Alt; take a deep breath, pour yourself a soothing beverage and calmly think this through...I'm not being sarcastic!
Seriously, if it's not the bearings then you're on the verge of throwing some real money at a problem that is basically a no-win situation.
You didn't mention how much you currently have invested in this particular router, but I'm guessing that you're at least going to double or triple your cost at this point. You'll still have a used router that likely isn't worth any more than you originally paid for it, but even if you could find a buyer after you repair it, you'll still be in the hole.
If you take the same cash and put it into a NEW router, you'll have a machine that's perfect, under warranty, and that has readily available parts should you need them.
You already know that Sears (Craftsman) is belly up here in Canada, so anything you need will likely have to come out of the US, assuming it's even available...shouldn't be any duty, but you may get stuck for brokerage fees and shipping is another aspect; assuming you want to actually use it in the near future, the parts situation may have you bogged down for an indeterminate amount of time. Personally speaking, that'd make me nutz (more so than normal)!
You might be able to find someone who needs the non-damaged parts from your machine and will be willing to take it off your hands...no need to just throw it into the scrap pile.
You might even be able to recover your original cost; the person looking for a newish switch or whatever is sort of in the same boat as you!

Good luck and I hope you'll give some thought to Stick's VoE and well reasoned argument for a NEW machine.
In the spirit of full disclosure, I've been burnt every time I've gotten involved with used machinery, and I do mean every time. To me they're toxic.
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