ni

"noonenparticular"

22/09/2005 4:45 PM

worn bearing question

I have a contractor's table saw. Just recently, I've noticed that while the
blade is spinning down, I'm hearing some clicking and knocking. I take the
blade and belt off, spin the arbor by hand, nothing. I put the belt on and
spin it and sure enough, with the lateral pressure on the arbor, it starts
knocking. I've had the saw for about 6 years, only the last two of which
have been what I consider slightly more than hobbyist use.

Is it unreasonable to think that arbor bearings should last longer than
this? Or am I being picky?

By the way, I've always had it hooked up to dust collection and vacuum out
the cabinet once a week.

Joe



p.s. It's a craftsman


This topic has 13 replies

Dd

"Dan"

in reply to "noonenparticular" on 22/09/2005 4:45 PM

23/09/2005 2:38 PM


I had the same problem on a rockwell contractor saw. It was a loose
tightening set-screw on the pulley.

Dd

"Dan"

in reply to "noonenparticular" on 22/09/2005 4:45 PM

23/09/2005 2:39 PM


I had the same problem on a rockwell contractor saw. It was a loose
tightening set-screw on the pulley.

Dd

"Dan"

in reply to "noonenparticular" on 22/09/2005 4:45 PM

23/09/2005 2:40 PM

I had the same problem on a rockwell contractor saw. It was a loose
set-screw on the pulley.
After tightening no more noise.

DB

Duane Bozarth

in reply to "noonenparticular" on 22/09/2005 4:45 PM

22/09/2005 11:47 AM

noonenparticular wrote:
>
> I have a contractor's table saw. Just recently, I've noticed that while the
> blade is spinning down, I'm hearing some clicking and knocking. I take the
> blade and belt off, spin the arbor by hand, nothing. I put the belt on and
> spin it and sure enough, with the lateral pressure on the arbor, it starts
> knocking. I've had the saw for about 6 years, only the last two of which
> have been what I consider slightly more than hobbyist use.
>
> Is it unreasonable to think that arbor bearings should last longer than
> this? Or am I being picky?
>
> By the way, I've always had it hooked up to dust collection and vacuum out
> the cabinet once a week.
>
> Joe
>
> p.s. It's a craftsman

Not too surprising...I suspect they'll be a standard bearing you can
replace relatively easily and inexpensively.

Is the belt too tight, perhaps? That'll do more to ruin a bearing than
most anything else.

DB

Duane Bozarth

in reply to "noonenparticular" on 22/09/2005 4:45 PM

22/09/2005 1:21 PM

noonenparticular wrote:
>
> "Duane Bozarth" <[email protected]> wrote in message
> news:[email protected]...
> > noonenparticular wrote:
> >>
> >> I have a contractor's table saw. Just recently, I've noticed that while
> >> the
> >> blade is spinning down, I'm hearing some clicking and knocking. I take
> >> the
> >> blade and belt off, spin the arbor by hand, nothing. I put the belt on
> >> and
> >> spin it and sure enough, with the lateral pressure on the arbor, it
> >> starts
> >> knocking. I've had the saw for about 6 years, only the last two of which
> >> have been what I consider slightly more than hobbyist use.
> >>
> >> Is it unreasonable to think that arbor bearings should last longer than
> >> this? Or am I being picky?
> >>
> >> By the way, I've always had it hooked up to dust collection and vacuum
> >> out
> >> the cabinet once a week.
> >>
> >> Joe
> >>
> >> p.s. It's a craftsman
> >
> > Not too surprising...I suspect they'll be a standard bearing you can
> > replace relatively easily and inexpensively.
> >
> > Is the belt too tight, perhaps? That'll do more to ruin a bearing than
> > most anything else.
>
> Thanks Duane,
>
> The belt is tightened via the standard motor on a sprung hinged plate I
> don't know how I'd adjust the tension if I was even of a mind to.

OK, some were designed w/ a fixed mount so it was possible to really
crank 'em tight. That can cause flat spots on bearing races when it
sits which can get noisy w/ time.

> Following the "buy a new car when you need a windshield wiper" philosophy, I
> wonder if this is a good enough reason to chuck the contractor saw and get a
> good cabinet saw???? (rhetorical).

Took far less than that for me... :)

DB

Duane Bozarth

in reply to "noonenparticular" on 22/09/2005 4:45 PM

22/09/2005 2:51 PM

Lawrence Wasserman wrote:
>
...
>
> Have you ruled out noise from the motor or belt itself?
>
...

Shhh, Larry! Read his followup... :)

DB

Duane Bozarth

in reply to "noonenparticular" on 22/09/2005 4:45 PM

22/09/2005 8:42 PM

woodcollector wrote:
>
> I'm a little suprised it didn't last longer I've got a Craftsman and not
> seen any bearing problems only fence issues. It has been used a lot in
> commercial setting and was purchased sometime in the late 50's. I've
> replaced the fence and pullies as well as a few belts. Now running link-
> belt but thus far no bearing problems.
>
> What you cutting ? I do some dado but mainly 2 x 4 and 3/4 plywood is the
> feed for it.
>
> - Guess you could have go a lemon too.
>

Just a bearing going doesn't surprise me a lick...

EP

"Edwin Pawlowski"

in reply to "noonenparticular" on 22/09/2005 4:45 PM

22/09/2005 7:24 PM


"noonenparticular" <[email protected]> wrote in message
> Following the "buy a new car when you need a windshield wiper" philosophy,
> I wonder if this is a good enough reason to chuck the contractor saw and
> get a good cabinet saw???? (rhetorical).
>
> Joe

Once you take off the belt, it never goes back on right and you will have
nothing but problems. Save that grief and get a Unisaw today.

wn

woodcollector

in reply to "noonenparticular" on 22/09/2005 4:45 PM

23/09/2005 1:15 AM

I'm a little suprised it didn't last longer I've got a Craftsman and not
seen any bearing problems only fence issues. It has been used a lot in
commercial setting and was purchased sometime in the late 50's. I've
replaced the fence and pullies as well as a few belts. Now running link-
belt but thus far no bearing problems.

What you cutting ? I do some dado but mainly 2 x 4 and 3/4 plywood is the
feed for it.

- Guess you could have go a lemon too.

ni

"noonenparticular"

in reply to "noonenparticular" on 22/09/2005 4:45 PM

22/09/2005 9:06 PM


"Edwin Pawlowski" <[email protected]> wrote in message
news:9yDYe.16457$Zg5.14348@trndny05...
>
> "noonenparticular" <[email protected]> wrote in message
>> Following the "buy a new car when you need a windshield wiper"
>> philosophy, I wonder if this is a good enough reason to chuck the
>> contractor saw and get a good cabinet saw???? (rhetorical).
>>
>> Joe
>
> Once you take off the belt, it never goes back on right and you will have
> nothing but problems. Save that grief and get a Unisaw today.
>
Is THAT why the Unisaw's have 3 belts? in case the first one doesn't go
back on right? Dat's good engi-ma-neering

ni

"noonenparticular"

in reply to "noonenparticular" on 22/09/2005 4:45 PM

22/09/2005 5:30 PM


"Duane Bozarth" <[email protected]> wrote in message
news:[email protected]...
> noonenparticular wrote:
>>
>> I have a contractor's table saw. Just recently, I've noticed that while
>> the
>> blade is spinning down, I'm hearing some clicking and knocking. I take
>> the
>> blade and belt off, spin the arbor by hand, nothing. I put the belt on
>> and
>> spin it and sure enough, with the lateral pressure on the arbor, it
>> starts
>> knocking. I've had the saw for about 6 years, only the last two of which
>> have been what I consider slightly more than hobbyist use.
>>
>> Is it unreasonable to think that arbor bearings should last longer than
>> this? Or am I being picky?
>>
>> By the way, I've always had it hooked up to dust collection and vacuum
>> out
>> the cabinet once a week.
>>
>> Joe
>>
>> p.s. It's a craftsman
>
> Not too surprising...I suspect they'll be a standard bearing you can
> replace relatively easily and inexpensively.
>
> Is the belt too tight, perhaps? That'll do more to ruin a bearing than
> most anything else.

Thanks Duane,

The belt is tightened via the standard motor on a sprung hinged plate I
don't know how I'd adjust the tension if I was even of a mind to.

Following the "buy a new car when you need a windshield wiper" philosophy, I
wonder if this is a good enough reason to chuck the contractor saw and get a
good cabinet saw???? (rhetorical).

Joe

Jn

John

in reply to "noonenparticular" on 22/09/2005 4:45 PM

23/09/2005 8:33 AM

noonenparticular wrote:
> I have a contractor's table saw. Just recently, I've noticed that while the
> blade is spinning down, I'm hearing some clicking and knocking. I take the
> blade and belt off, spin the arbor by hand, nothing. I put the belt on and
> spin it and sure enough, with the lateral pressure on the arbor, it starts
> knocking. I've had the saw for about 6 years, only the last two of which
> have been what I consider slightly more than hobbyist use.
>
> Is it unreasonable to think that arbor bearings should last longer than
> this? Or am I being picky?
>
> By the way, I've always had it hooked up to dust collection and vacuum out
> the cabinet once a week.
>
> Joe
>
>
>
> p.s. It's a craftsman
>
>

Maybe the arbor pulley is loose or does not fit snugly on the arbor
(hole is worn out of round)? Had this happen to me once. With a new
pulley the saw runs nice and quiet.

J

lL

[email protected] (Lawrence Wasserman)

in reply to "noonenparticular" on 22/09/2005 4:45 PM

22/09/2005 7:43 PM

In article <[email protected]>,
noonenparticular <[email protected]> wrote:
>I have a contractor's table saw. Just recently, I've noticed that while the
>blade is spinning down, I'm hearing some clicking and knocking. I take the
>blade and belt off, spin the arbor by hand, nothing. I put the belt on and
>spin it and sure enough, with the lateral pressure on the arbor, it starts
>knocking. I've had the saw for about 6 years, only the last two of which
>have been what I consider slightly more than hobbyist use.
>
>Is it unreasonable to think that arbor bearings should last longer than
>this? Or am I being picky?
>
>By the way, I've always had it hooked up to dust collection and vacuum out
>the cabinet once a week.
>
>Joe
>
>
>
>p.s. It's a craftsman
>
>

Have you ruled out noise from the motor or belt itself?


--

Larry Wasserman Baltimore, Maryland
[email protected]


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