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Powermatic 54A pulleys

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Forum topic by Dusty56 posted 02-18-2012 06:52 PM 827 views 0 times favorited 7 replies Add to Favorites Watch
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Dusty56

11806 posts in 3153 days


02-18-2012 06:52 PM

Topic tags/keywords: question jointer powermatic 54a

Hi folks,
To those of you that own Powermatic 54A jointers , I am wondering what size pulleys are on your machines.
I purchased a used jointer and the cutterhead and motor pulleys are the same small size…roughly 2.5”
Is this correct ? Thank you : )

-- I'm absolutely positive that I couldn't be more uncertain!


7 replies so far

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Grandpa

3256 posts in 2140 days


#1 posted 02-18-2012 08:51 PM

Dusty, I don’t own a Powermatic jointer but I do have an old Craftsman jointer and they are the same size on it. I think that is pretty common.

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tenontim

2131 posts in 3209 days


#2 posted 02-18-2012 10:54 PM

The one on my motor is 4.5” and the one on the cutter 2.5”.

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Dusty56

11806 posts in 3153 days


#3 posted 02-19-2012 06:11 AM

Grandpa , thanks for your input , but I addressed my question to owners of the 54A Powermatic jointer,
I have owned other brands and they all had larger pulleys on the motor…my whole reason for asking in the first place. The cutter head seems to be spinning so fast I don’t want to burn up the bearings.

-- I'm absolutely positive that I couldn't be more uncertain!

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tenontim

2131 posts in 3209 days


#4 posted 02-19-2012 12:48 PM

Actually the larger pulley on the motor is going to make your cutter head spin faster than the motor, approximately 6210 rpm, with a 3450 rpm motor. You have a 1.8 overdrive ratio.

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Dusty56

11806 posts in 3153 days


#5 posted 02-19-2012 05:49 PM

Wow , I thought the larger pulley would slow it down. Thanks for the info , Tim : )

-- I'm absolutely positive that I couldn't be more uncertain!

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Grandpa

3256 posts in 2140 days


#6 posted 02-19-2012 10:12 PM

Tim is correct. The driver is larger so you get more RPM out of the cutter head. I have Craftsman jointers and they use the same pulleys on each shaft.

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Dusty56

11806 posts in 3153 days


#7 posted 02-19-2012 10:31 PM

Thanks for the verification , Grandpa : )

-- I'm absolutely positive that I couldn't be more uncertain!

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