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Band saw lower wheel issue

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Forum topic by SharkeysEnd posted 04-06-2019 12:14 AM 832 views 0 times favorited 16 replies Add to Favorites Watch
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SharkeysEnd

61 posts in 475 days


04-06-2019 12:14 AM

Hi everyone. I’ve decided to try tuning up my band saw as best I can. After removing the blade and cleaning the tires, I ran it and for the first time noticed how badly the lower wheel is wobbling.


View on YouTube

The toothbrush helps illustrate the lateral movement.

I’ve looked around and tried to figure out what can be done about this, but most resources I’ve found deal mostly with weight alignment.

It’s a (now-defunct) King Machinery 14” band saw. Any thoughts?

-- "Many folk like to know beforehand what is to be set on the table; but those who have laboured to prepare the feast like to keep their secret; for wonder makes the words of praise louder." -Gandalf


16 replies so far

View BlueRidgeDog's profile

BlueRidgeDog

499 posts in 336 days


#1 posted 04-06-2019 12:55 AM

Any play in it if you try and move it in/out up/down? Could be a bent shaft, bad bearing or untrue wheel. Assuming it has not been knocked over, odds of the shaft or wheel getting bent are smaller than the bearing getting bad. I would take the wheel off and check each of them to find the error, but once you get to the shaft you won’t find that much run-out with out a dial indicator.

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SharkeysEnd

61 posts in 475 days


#2 posted 04-06-2019 12:58 AM


Any play in it if you try and move it in/out up/down? Could be a bent shaft, bad bearing or untrue wheel. Assuming it has not been knocked over, odds of the shaft or wheel getting bent are smaller than the bearing getting bad. I would take the wheel off and check each of them to find the error, but once you get to the shaft you won t find that much run-out with out a dial indicator.

The wheel doesn’t wiggle at all, i.e. no play on it.

I’d been thinking about replacing the bearing just as a precaution (and because I always start with the cheapest solution). Getting it out seems like a bigger job than I’d originally thought, but I’m fairly certain I can do it without harming anything.

Thanks for the guidance.

-- "Many folk like to know beforehand what is to be set on the table; but those who have laboured to prepare the feast like to keep their secret; for wonder makes the words of praise louder." -Gandalf

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BlueRidgeDog

499 posts in 336 days


#3 posted 04-06-2019 01:01 AM

Well, if you are taking the bearing out, you can have the wheel and shaft checked at a machine shop…they should test it for you for little cost to help you decide what the issue is…at least the machine shops I deal with are usually helpful.

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Aj2

2558 posts in 2355 days


#4 posted 04-06-2019 01:15 AM

I watched the video. It’s so noisy are you sure there are bearings.
Some machines from China are so poorly made it’s hardy worth your time or money to fix.
Good luck

-- Aj

View SharkeysEnd's profile

SharkeysEnd

61 posts in 475 days


#5 posted 04-06-2019 01:18 AM



I watched the video. It’s so noisy are you sure there are bearings.
Some machines from China are so poorly made it’s hardy worth your time or money to fix.
Good luck

It was made in Taiwan in 1985, but I understand what you’re saying.

-- "Many folk like to know beforehand what is to be set on the table; but those who have laboured to prepare the feast like to keep their secret; for wonder makes the words of praise louder." -Gandalf

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MrUnix

7527 posts in 2756 days


#6 posted 04-06-2019 03:24 AM

I’m willing to bet that isn’t a problem at all. I would replace the bearings anyway though – it is cheap and easy insurance.

Cheers,
Brad

-- Brad in FL - In Dog I trust... everything else is questionable

View CaptainKlutz's profile

CaptainKlutz

2016 posts in 2051 days


#7 posted 04-06-2019 03:45 AM

+1 Not sure this is enough movement to make any difference on 14” bandsaw.

+1 remove the wheel:
- check/replace bearing – sounds noisy to me too.
- check wheel on flat surface with hole in center to check for flat rim and parallel hub face with winding sticks.
- Check drive shaft for movement. If you find movement, check for play in housing bearings with belt off to remove any external tension.

FWIW – Do not underestimate amount of wobble created by out of balance wheel. That video looks like a before balancing version to me. You can try using double sided tape and a few washers at first, but if you need more weight; Grab some self adhesive wheel weights from HF or wally world and balance the wheels. Then check wobble again.

Best Luck.

-- I'm an engineer not a woodworker, but I can randomly find useful tools and furniture inside a pile of lumber!

View Delete's profile

Delete

439 posts in 929 days


#8 posted 04-06-2019 03:52 AM

If the wheel and shaft are tight without play, the bearings are probably ok. If the bearings are noisy they are probably running dry and will need replacement. If not, it is probably a bent wheel or shaft, stalling it on a heavy knot or steel in your wood can do that, more likely it may have been tipped over. The wheel is easy to remove, mount it on a scrap piece of shaft the same size and spin it between two saw horses with a couple of scrap plywood V blocks screwed or clamped to the sawhorses, if it’s the wheel you will see the same wobble. If its good, start the motor and take a piece of wood and slowly bring it up to the side of the end of the shaft, if it starts to chatter as you bring it close, it is the shaft that is bent.

View WhyMe's profile

WhyMe

1194 posts in 2118 days


#9 posted 04-06-2019 02:19 PM

In my opinion that slight movement is nothing to worry about.

View OnhillWW's profile

OnhillWW

197 posts in 1789 days


#10 posted 04-06-2019 03:55 PM

Most of the gritty grating noise is coming from the TB handle rubbing against the wheel – Correct? If so- I too do not think that much wobble will affect operation but it is true that checking the bearings on an older machine is a good idea. Any bearing dealer can measure the bearings and get you replacements, make sure you get sealed bearings.

-- Cheap is expensive! - my Dad

View SharkeysEnd's profile

SharkeysEnd

61 posts in 475 days


#11 posted 04-06-2019 04:10 PM


In my opinion that slight movement is nothing to worry about.

- WhyMe

You should see what it does to the blade.

-- "Many folk like to know beforehand what is to be set on the table; but those who have laboured to prepare the feast like to keep their secret; for wonder makes the words of praise louder." -Gandalf

View splintergroup's profile

splintergroup

3053 posts in 1780 days


#12 posted 04-07-2019 02:36 PM

Hard to tell from the video, but if you could put a dial indicator on the small bit of protruding shaft, you could measure the runout. the runout at wheel would magnify a bent shaft, but if your shaft is good, then the wheel is probably tweaked.

Either way, pulling the wheel and checking the shaft would sort this all out (replacing the bearing(s) is also recommended while you are in there).

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SharkeysEnd

61 posts in 475 days


#13 posted 04-07-2019 03:38 PM

OK, I have to admit I am at a loss of what to do next.

It was a snap ring on the pulley side that I removed.

This is a king machinery saw made in Taiwan. I expect it’s a clone of a different brand, but I don’t know which.

Thank you everyone for your input, it’s very helpful

-- "Many folk like to know beforehand what is to be set on the table; but those who have laboured to prepare the feast like to keep their secret; for wonder makes the words of praise louder." -Gandalf

View CaptainKlutz's profile

CaptainKlutz

2016 posts in 2051 days


#14 posted 04-07-2019 07:17 PM

+1 check the end of shaft (wheel was mounted on) for run-out. IE spin it around and see if the end moves. If you don’t have dial indicator, then clamp a piece of wood to table under the shaft with known clearance, and see if height changes as it rotates. I.E. The end of shaft should not have any significant movement or wobble.

Be sure to pull the belt off the other end of shaft. That will allow you to see if the bearngs are worn, and shaft is wobbling due tension created by belt.

This is a king machinery saw made in Taiwan. I expect it’s a clone of a different brand, but I don t know which.
- SharkeysEnd

Nearly 100% of old 14” band saws are clone of Delta model. LOL
Several mfg in Taiwan made the clones and OEM versions side by side.
Believe the King Machinery brand was sold by a Canadian importer. King of Canada exists today to leverage the old King name, but is a different entity (1980’s/90’s were cut throat in WW tools).
If you need a manual suggest you search through the various Grizzly g0555 model suffixes and find one that looks similar. The major differences between all models are:
- Stand type
- motor mounting position
- Top wheel pivot bracket mounting
- Belt tension componets (quick release, different diameter springs, screw sizes, etc)
- Blade guides (+ sliding blade guard)

So if you find a manual for similar configured machine, also built around same era as your saw; then you likely have the manual that would have been copied to make yours. :-)

Here’s an example of discontinued King of Canada”
http://files.kingcanada.com/catalog/products/servicemanualxm/KC-1401HD%20service%20manual.pdf

There are 5 Grizzly models active that are based on the old 14” bandsaw configuration:
https://www.grizzly.com/search?q=(g0555)

PS – the same 14” BS design is still made today in Taiwan, so once you find similar model from Grizzly or Jet; you can get parts from them.

Best Luck.

-- I'm an engineer not a woodworker, but I can randomly find useful tools and furniture inside a pile of lumber!

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SharkeysEnd

61 posts in 475 days


#15 posted 04-07-2019 07:44 PM

That King Canada parts list pretty much matches my saw. Especially the blade tensioning system.

I will check the shaft (the belts and pulleys are already off), but in any case I’d like to replace the bearings regardless. The retaining ring is already off, so it looks like I just have to bang the shaft through out the wheel side, correct?

I need to find a pin for the table, too. I wonder if a Grizzly one would match…

Thanks so much for your help.

-- "Many folk like to know beforehand what is to be set on the table; but those who have laboured to prepare the feast like to keep their secret; for wonder makes the words of praise louder." -Gandalf

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