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View TomFran's profile

Table saw arbor lubrication

by TomFran
posted 05-01-2012 01:44 PM


22 replies so far

View therookie's profile

therookie

887 posts in 1485 days


#1 posted 05-01-2012 01:49 PM

Well if the bearings are making noise and the saw is older then you might need to replace the bearings. Because most of the time the bearings are sealed and you cant lube them. Just my 2 cents.

-- http://aewoodworks.webs.com

View Greg..the Cajun  Box Sculptor's profile

Greg..the Cajun Box Sculptor

5110 posts in 1966 days


#2 posted 05-01-2012 01:51 PM

Wouldn’t the bearing on a table saw motor be sealed to prevent dust?

-- If retiring is having the time to be able to do what you enjoy then I have always been retired.

View TomFran's profile

TomFran

2942 posts in 2652 days


#3 posted 05-01-2012 01:54 PM

The manual that came with the saw (yes, the manual was actually saved), says that the bearings can be and should be lubricated.

-- Tom, Surfside Beach, SC - Romans 8:28

View therookie's profile

therookie

887 posts in 1485 days


#4 posted 05-01-2012 01:55 PM

Then you must be talking about the outside surfaces of the bearing and i have never seen a saw with this… could you post a pic of the bearing?

-- http://aewoodworks.webs.com

View RetiredCoastie's profile

RetiredCoastie

999 posts in 1840 days


#5 posted 05-01-2012 01:59 PM

Since the manual calls for lubricant then it should specify what type of lubricant. If it doesn’t then you should use a dry spray lubricant.

-- www.thepatriotwoodworker.com Proud Supporter of Homes For Our Troops

View TomFran's profile

TomFran

2942 posts in 2652 days


#6 posted 05-01-2012 02:46 PM

RetiredCoastie,

That’s true that the manual would specify what to use, but I was wondering if there is a better product for lubricating bearings today than there was 60 years ago when this saw was made.

-- Tom, Surfside Beach, SC - Romans 8:28

View MedicKen's profile

MedicKen

1599 posts in 2120 days


#7 posted 05-01-2012 02:55 PM

Replace the bearings

-- My job is to give my kids things to discuss with their therapist....medic20447@gmail.com

View Sawkerf's profile

Sawkerf

1730 posts in 1726 days


#8 posted 05-01-2012 03:01 PM

Why do you think that the bearings need lubed? If they aren’t noisy or dragging, they’re probably fine. If you must lube them, I agree with Coastie about using a dry spray lubricant.

-- Adversity doesn't build character...................it reveals it.

View TomFran's profile

TomFran

2942 posts in 2652 days


#9 posted 05-01-2012 05:37 PM

OK, guys, thanks for the input. I do appreciate your advice!

-- Tom, Surfside Beach, SC - Romans 8:28

View MedicKen's profile

MedicKen

1599 posts in 2120 days


#10 posted 05-01-2012 09:04 PM

The average life span of a sealed ball bearing is about 25 years. Being that the bearings are older than that I would replace them. If for nothing else peace of mind. The grease in the bearing, if there is any left, is going to be hard dried out and not able to lubricate anything. If you have to go through the hassle of removing the arbor why not just put new bearings in? To me, its a no brainer.

-- My job is to give my kids things to discuss with their therapist....medic20447@gmail.com

View TomFran's profile

TomFran

2942 posts in 2652 days


#11 posted 05-01-2012 09:20 PM

Is it that easy to replace bearings in table saw arbors? Don’t they have to be pressed out with special tools?

And, are bearings for 60 year old saws easy to locate?

If it is something the average guy can do, and the bearings are available, then I agree wholeheartedly about replacement.

-- Tom, Surfside Beach, SC - Romans 8:28

View GMman's profile

GMman

3902 posts in 2355 days


#12 posted 05-01-2012 09:35 PM

Sorry buddy but sears tools = junk

View RetiredCoastie's profile

RetiredCoastie

999 posts in 1840 days


#13 posted 05-01-2012 09:39 PM

A lot would depend on hours of operation, the environment in which the saw was exposed to and the most important thing would be run-out on the arbor. This can be checked very easily with a dial indicator or even a straight edge and feeler gauges. The old adage applies ” IF IT’S NOT BROKE DON’T FIX IT ”. Unless the saw has seen heavy use I would think it would be good to go.

-- www.thepatriotwoodworker.com Proud Supporter of Homes For Our Troops

View TomFran's profile

TomFran

2942 posts in 2652 days


#14 posted 05-01-2012 09:46 PM

That is good advice. I’ll tell my son to check it for the run-out.

I believe he can get to the bearings without much problem, and so maybe some of the dry lubricant you mentioned in an earlier post might be all that’s necessary.

Thanks a bunch!

-- Tom, Surfside Beach, SC - Romans 8:28

View Scot's profile

Scot

344 posts in 2053 days


#15 posted 05-01-2012 09:46 PM

Arbor bearings are easy to change but most people may not have a bearing press. But most auto shops do and some auto parts store do. Before I got my own bearing press I would just go to the local NAPA auto parts, I get my bearings there too, and they press them on for free.

I always get sealed bearing with metal side shields. They are lubed for life.

-- If the old masters had power tools, they would have used them. So get off your damn High Horse.

View TomFran's profile

TomFran

2942 posts in 2652 days


#16 posted 05-01-2012 09:50 PM

Scot,

I know that we don’t have a bearing press, but if they do (NAPA), and will do it for free, that sounds like a good plan.

-- Tom, Surfside Beach, SC - Romans 8:28

View PutnamEco's profile

PutnamEco

155 posts in 1944 days


#17 posted 05-02-2012 06:01 AM

If it is not broke, don’t fix it….

What type of lube did the manual recommend? If they recommended grease, a dry lube might not be the be the best replacement.

-- “The test of our progress is not whether we add more to the abundance of those who have much; it is whether we provide enough for those who have too little.” ― Franklin D. Roosevelt

View usnret's profile

usnret

184 posts in 1166 days


#18 posted 05-02-2012 06:07 AM

I have a Craftsman hybrid style saw that was made in the 50’s or 60’s and the bearings on it are fine. The arbor spins freely with no noise and the runout is .001”. If the bearings raent noisy and the runout is under .005” I owuldnt touch the bearings.

-- Chief Petty Officer USN(RET) 1991-2011

View TomFran's profile

TomFran

2942 posts in 2652 days


#19 posted 05-02-2012 02:26 PM

OK, friends, thanks for all the helpful comments. Here is the conclusion of the matter.

My son installed a Power Twist Plus link belt and a new Freud blade, and he says that it purrs like a kitten now. As it turned out, the blade that was on the saw was bent, and the belt was stiff and needed to be replaced.

He said that with the new belt and blade, he could cut 2X4”s all day long with the saw hardly slowing down at all.

So, he didn’t have to mess with the bearings at all, but I did advise him, based on some of the helpful posts here, that if he could easily get to the bearings, to spray some dry lubricant on them.

So, thanks again to all of you for the very helpful advice!

-- Tom, Surfside Beach, SC - Romans 8:28

View PutnamEco's profile

PutnamEco

155 posts in 1944 days


#20 posted 05-07-2012 02:55 AM

Re: but I did advise him, based on some of the helpful posts here, that if he could easily get to the bearings, to spray some dry lubricant on them.

Spraying dry lube on greased bearings may not be the best thing for them. If the factory called for grease, that would be the only thing that they should be re-lubricated with. The dry lube may displace the grease and not be a sufficient lubricant for long bearing life.

-- “The test of our progress is not whether we add more to the abundance of those who have much; it is whether we provide enough for those who have too little.” ― Franklin D. Roosevelt

View rayman54's profile

rayman54

15 posts in 208 days


#21 posted 03-03-2014 03:02 AM

I just replaced the arbor bearings in a 1950 something Craftsman model 113.27520 that I am doing a complete restore on. The bearings are not real easy to find, go to a bearing supply house for correct fit. mine were unusual in size,, 6202-zz-5/8 Special size (5/8×35x11mm) Sears will sell you the bearings for double the price of a bearing supply house.
one of my original bearings was a NORMA XF-121-PP the other a NEW DEPARTURE 77120 The hub that the blade fits up to is pinned to the arbor shaft and must be removed in order to get one of the bearings off, care must be used doing this. I mark the hub and shaft to make sure it goes back exactly as it came apart. THIS IS CRITICAL. This work can be done without a bearing press with a little care but if your not comfortable do this I would suggest a machine shop, I don’t trust some of the help in the auto part stores.
if not careful the hub can be cocked or arbor bent resulting in run-out.

View TomFran's profile

TomFran

2942 posts in 2652 days


#22 posted 03-04-2014 04:45 PM

Thanks, rayman54 for your input. I’m sure it will be helpful to others who need to replace bearings on vintage Craftsman saws.

-- Tom, Surfside Beach, SC - Romans 8:28

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