Table saw screeching sound.

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Forum topic by lateralus819 posted 11-29-2013 09:55 PM 1475 views 0 times favorited 4 replies Add to Favorites Watch
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2241 posts in 2090 days

11-29-2013 09:55 PM

Tore my saw down to clean it, decided to see if there were any noises present with just the motor. It makes a loud noise near the fan. Is this a sign of bad bearings? I checked to see if it was the fan hitting something but it’s not.

4 replies so far

View mahdee's profile


4021 posts in 1968 days

#1 posted 11-30-2013 02:45 PM

Could be a bad ball Bering.


View lateralus819's profile


2241 posts in 2090 days

#2 posted 11-30-2013 02:56 PM

I’m not sure. I can hear a noise if I spin it manually. Kinda crunchy feeling. Gonna take it to a repair shop.

View JustJoe's profile


1554 posts in 2239 days

#3 posted 11-30-2013 05:24 PM

can you put your ear down close when you turn it by hand and see where the crunch noise/feeling is coming from? If the top-end of the motor opposite the arbor is perforated then sometimes splinters or dirt can get in there and rub against the fan. Or that end can get pushed in when you’ve disassembled it and set it upside down on the ground. That makes the housing touch the spinning fan inside.

Another place is on the arbor side between the back of the pulley and the motor housing. Offcuts, splinger, dirt can get down in and jam.

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View kaerlighedsbamsen's profile


1251 posts in 1914 days

#4 posted 11-30-2013 09:08 PM

A trick i learned from my mechanic: Take a screwdriver (plastic handle) and put the end on some clean metal near the bearing you suspect os gone. Put your ear against the end of the handle and rotate motor. You will now clearly hear if the bearings is bad or it is something else.

-- "Do or Do not. There is no try." - Yoda

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