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Table Saw Blade Speed?

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Forum topic by MontanaSoftware posted 07-14-2018 02:36 PM 629 views 0 times favorited 9 replies Add to Favorites Watch
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MontanaSoftware

1 post in 153 days


07-14-2018 02:36 PM

Topic tags/keywords: question tablesaw

Hi Folks:

I’m restoring an old Craftsman 113 table saw (yes … I know I can’t turn a pig into a racehorse … but I can make a fast pig!!)

I’m replacing the 1.5HP motor with a 3HP motor, and adding machined steel pulleys and a link belt. I’ve also made PALS-style adjuster brackets for the trunions, and am making an adjustment tool with a dial indicator.

My question is … what speed should I run the blade? The motor is 240 volts, 15 amps, and spins at 3450 RPM. I have several options for pulley sizes, and can pretty much spin the blade at any speed I choose.

What speed do you recommend?

Thanks!

PS: This is my first post on this forum … is there a way to “subscribe” to this topic and receive an email notification every time it gets a response?


9 replies so far

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Don Broussard

3692 posts in 2452 days


#1 posted 07-14-2018 02:43 PM

Montana—I had a similar saw that ran at 3450 rpm from the factory, so I think that’s the right speed. As for the subscription, since it’s your topic, you will have the title of your post in the Pulse in bold every time a new post is added. You’ll have to edit your e-mail notifications from your profile page to be alerted via e-mail.

-- People say I hammer like lightning. It's not that I'm fast -- it's that I never hit the same place twice!

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jbay

2879 posts in 1100 days


#2 posted 07-14-2018 02:49 PM

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knotscott

8147 posts in 3577 days


#3 posted 07-14-2018 03:43 PM

I agree with Don….factory speed of around 3450 is best.

-- Happiness is like wetting your pants...everyone can see it, but only you can feel the warmth....

View jonah's profile

jonah

1921 posts in 3500 days


#4 posted 07-14-2018 06:56 PM

The manual will probably have the rotational speed of the blade. I suspect it’ll be somewhere around 6000rpm.

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ArtMann

1142 posts in 1017 days


#5 posted 07-15-2018 07:51 PM

Don’t get carried away with feed speed. The motor may be able to handle it but not the trunion. It was designed for a weaker motor and the bearings or even the cast iron may fail if used like a cabinet saw.

View johnstoneb's profile

johnstoneb

3060 posts in 2374 days


#6 posted 07-15-2018 10:08 PM

Pulleys on the 113 are 1:1 so its about 3450.

-- Bruce, Boise, ID

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woodbutcherbynight

5702 posts in 2610 days


#7 posted 07-16-2018 01:52 AM

A word of advice, stick to whatever the manufacture recommended for blade speed. Bad things happen when you tinker. Just saying….

LOL

-- Live to tell the stories, they sound better that way.

View uptoolateman's profile

uptoolateman

48 posts in 271 days


#8 posted 07-16-2018 02:12 AM

If you install the machined pulley’s from inline industries it bumps the blade speed up to 3833 rpm using a 3450 rpm motor. The motor pulley in the kit is 2 1/2” and the blade pulley is 2 1/4”. I guess you could install them the other way around and get 3105 rpm, but I don’t know why you would want to slow the blade down.

View dschlic1's profile

dschlic1

442 posts in 2171 days


#9 posted 07-16-2018 05:27 PM

I have a 113 table saw with (I believe) original pulleys. The pulley on the arbor is slightly smaller than the pulley on the motor. Because of this the blade spins at a slightly higher speed than the motor.

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