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Need Unisaw arbor washer - I think....

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Forum topic by bbc557ci posted 01-26-2014 01:09 AM 1151 views 0 times favorited 12 replies Add to Favorites Watch
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bbc557ci

589 posts in 1538 days


01-26-2014 01:09 AM

The current washer that came with my used 34-459 rt. tilt Uni is about 3 1/2 inches in diameter, about 1 inch bigger than the flange on the arbor that the blade fits up against. And, there’s a “hollow” to the blade washer, so when I put a little pressure on the nut/waher to hold the blade in place, the blade actually develops a cup. Could one of of you Uni owners/users fill me in on the right size washer to look for and maybe where to get it? I checked ebay and didn’t have much luck. Thanks!!

-- Bill, central NY...no where near the "big apple"


12 replies so far

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bbc557ci

589 posts in 1538 days


#1 posted 01-26-2014 01:19 AM

So as not to take up a bunch screen space….....

I’m not putting a whole lot of pressure on when I tighten the nut. As mentioned above, there is a hollow in the 3 1/2 inch washer that’s the result of raised rim on the inside of the washer. The rim might be +,- 1/32nd high. But the washer inside of the rim is about 1/2 inch more in diameter than the +,- 2 1/2 in. flange on the arbor. I think the previous owner put the current washer on to use as a blade stabilizer??

Anyone know the correct/stock diameter for the Uni blade washer?

-- Bill, central NY...no where near the "big apple"

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,

2387 posts in 3011 days


#2 posted 01-26-2014 01:54 AM

Probably not much help to you, but I have owned my fair share of Unisaws to date. We run one in our shop right now. But my shop is out in town so I cannot go to it and take any measurements. I will say that on a past Unisaw I was missing the washer and so I bought a brand new washer/nut combo that was designated for the unisaw and I bought that set for around 14.00 on Ebay. They are regularly sold on Ebay and I believe the washer/nut is pretty standard or consistent in size over the different years/models of Unisaws. I don’t think you could go wrong buying a new washer if in fact your current washer is not correct or has some sort of issue. Another thing I found in the past was whenever using a very cheap blade the blade could develop a cup mainly because it was so cheap it was sort of flimsy so I would ensure you are using a decent blade, and any of the Avanit/Frued blades at Home Depot, while they are cheap in price, they are more than adequate as long as they are sharp.

-- .

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bbc557ci

589 posts in 1538 days


#3 posted 01-26-2014 03:10 AM

Jerry - I did see washer/nut combos on ebay and the seller/s said they are for the Unisaw. I was looking for dimensions but sellers don’t seem to have that mentioned in their descriptions, at least that I saw. I’ll keep the search going until I find what I need. Then, for $15.00 or so, I could just order one and see if it improves things.

Blade is a brand spank’n new Freud LU84R011 50T combo, and not a thin kerf. Not a cheapie, but as with everything and anything on todays market, there are more expensive blades out there.

Thanks for the input it is appreciated.

-- Bill, central NY...no where near the "big apple"

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Tommy Evans

137 posts in 1638 days


#4 posted 01-26-2014 02:16 PM

Bill, my early 70’s uni measures 2 1/2 inches.

peace, T

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Fred Hargis

3938 posts in 1957 days


#5 posted 01-26-2014 02:27 PM

My 2001 Uni also has a 2 1/2” washer. I don’t think what you have is OEM, and it’s large size would distort the blade. Take a look here for the correct one, page down a little to part # 422-04-103-5001S. They call it an outside blade flange.

-- Our village hasn't lost it's idiot, he was elected to congress.

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bbc557ci

589 posts in 1538 days


#6 posted 01-26-2014 02:27 PM

Thanks Tommy, I figured the factory washer would, or should, be in the 2 1/2 in. range.

-- Bill, central NY...no where near the "big apple"

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bbc557ci

589 posts in 1538 days


#7 posted 01-26-2014 02:39 PM

Thanks for the link Fred !!

-- Bill, central NY...no where near the "big apple"

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OggieOglethorpe

1212 posts in 1574 days


#8 posted 01-26-2014 02:49 PM

I don’t even think the arbor washer has to be from a Unisaw…

Since all American 10” table saws use a 5/8” arbor, I’ll bet a washer from any 10” cabinet saw would be close enough and should work fine. Tilt direction matters, if you get a combo nut/washer, as saws are designed to tighten the nut when it starts, so left tilt arbors are threaded opposite of right tilt.

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bbc557ci

589 posts in 1538 days


#9 posted 01-26-2014 03:03 PM

Cessna – I was thinking the same thing…5/8” is 5/8” any way ya cut it. I have 3 other table saws all with 5/8 arbors but the flange/washers are pretty small. Sears 113.xxxx, an old Atlas 2 belt manufactured about 1951, and a light weight Makita 2711 from the early ‘90’s. Non are too pretty but they all work well. But…my mission is to get/make my darn Uni my daily user!!

Thanks for the heads up on the nut/washer combo. Adds specify they are for left tilt. Didn’t see anything about thread direction from sellers but figured they might/must be threaded wrong for my right tilt.

-- Bill, central NY...no where near the "big apple"

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Fred Hargis

3938 posts in 1957 days


#10 posted 01-27-2014 01:22 PM

They make the combo washer/nut for the right tilt, I have it. But I don’t remember the part number or where I got. If i get out to the shop later today I’ll see if I can find it and post back. BTW, a lot guys poo-poo those because of the high cost; but I think it was worth every penny!

Found the part number: it’s 36-659. It may have been discontinued but some aftermarket places still seem to have it. I just got mine sometime this past year.

-- Our village hasn't lost it's idiot, he was elected to congress.

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bbc557ci

589 posts in 1538 days


#11 posted 01-27-2014 02:36 PM

Thanks Fred. The washer/nut combo looks more “beefy”. Has a machined look as opposed to stamped. I’ll see if I can locate one for my rt. tilt.

As a temporary fix (not that it’s the right thing to do) I put a plain/regular steel washer between the too big arbor washer and the blade. It more than filled the hollow in the arbor washer. Deflection is gone from the blade, and getting real nice cuts, no saw blade marks at all.

-- Bill, central NY...no where near the "big apple"

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distrbd

2227 posts in 1910 days


#12 posted 01-27-2014 05:03 PM

Just a thought,would a set of blade stiffeners help?they are equal in size and will put equal pressure on the blade,the drawback is you’ll need a new blade insert and your distance from the blade to the fence will be off by 1/4” which is the thickness of the washer in front of the arbor flange.

-- Ken from Ontario, Canada

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