2 Bearing & Poly V upgrade

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sandyj
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Location: Auckland, New Zealand
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2 Bearing & Poly V upgrade

Post by sandyj »

Sandy From NZ....
I have just spent half of my Easter Monday Upgrading the Quill and Drive for my 47yr old SS and the question I ask is - Why did I wait so long?
What a BIG difference.
Apart for a slight change in the gap between the table saw insert slot and blade alignment, everything just fitted. The machine runs smoother and quieter. I feel like I have a "new machine".
I pondered over a motor upgrade (3/4hp to 1 1/8hp) but I gave the motor a thorough inspection when it was out of the headstock and everything is just dandy. There is no play on the bearings and the motor fan seems to be doing its job just fine, maybe the switch is needing a replacement as it is a wee bit sloppy.
Workmanship alone makes me believe that this is one of the best products I have come across.
No I am not a stock holder but I do vote with my wallet. I will continue to buy SS, new replacement parts & accessories, and with the deals that come out from time to time, beats the cost and risk going the ebay way.

Happy Easter from Down Under
Sandy :)
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pinkiewerewolf
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Posts: 526
Joined: Mon Jan 07, 2008 10:13 pm
Location: Ca. Eureka area.

Post by pinkiewerewolf »

Sandy, it sounds like your day was well spent.
In fact, it almost seems like you are preparing for a project.:D
Happy Easter from Nor-Cal.:)
John, aka. Pinkie. 1-520, 1-510 & a Shorty, OPR. 520 upgrade, Band Saw, Jig Saw, scroll saw, Jointer, Jointech Saw Train.:) Delta Benchtop planer, Makita LS1016L 10" sliding compound miter saw, Trojan manf. (US Made)Miter saw work center, MiniMax MM16 bandsaw.
Squire of the Shopsmith. ...hmmmm, maybe knave, pawn, or wretch would be more appropriate for me.:D
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billmayo
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Joined: Fri Jul 21, 2006 3:31 pm
Location: Plant City, FL

Poly-V Upgrade

Post by billmayo »

From all my experiences, I find that the older 3/4 HP motors are just as powerful as the 1 1/8 HP motors. Insuring that the alignments is right on helps for either motor. I am still using the 3/4 HP motors and/or Gilmer drives in most of my Shopsmiths. Rebuilding the Gilmer clutch helps prevent destroying the Gilmer belt most of the time if the quill is suddenly stopped. I do not use the Gilmer belt Shopsmiths for any sawing or drilling operations. Replacing the bearing in the Gilmer quill with a higher quality bearing really helps the quill accuracy.

I would recommend installing the Poly-V system for anyone with a Gilmer drive Shopsmith when possible. Replacing a damaged Gilmer belt can ruin a good day or two. I see no real reason to replace the 3/4 HP motor unless it is bad. Of course, these are only my opinion.

Bill Mayo
sandyj wrote:Sandy From NZ....
I have just spent half of my Easter Monday Upgrading the Quill and Drive for my 47yr old SS and the question I ask is - Why did I wait so long?
What a BIG difference.
Apart for a slight change in the gap between the table saw insert slot and blade alignment, everything just fitted. The machine runs smoother and quieter. I feel like I have a "new machine".
I pondered over a motor upgrade (3/4hp to 1 1/8hp) but I gave the motor a thorough inspection when it was out of the headstock and everything is just dandy. There is no play on the bearings and the motor fan seems to be doing its job just fine, maybe the switch is needing a replacement as it is a wee bit sloppy.
Workmanship alone makes me believe that this is one of the best products I have come across.
No I am not a stock holder but I do vote with my wallet. I will continue to buy SS, new replacement parts & accessories, and with the deals that come out from time to time, beats the cost and risk going the ebay way.

Happy Easter from Down Under
Sandy :)
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chrispitude
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Posts: 226
Joined: Sat Feb 23, 2008 9:18 pm
Location: Saylorsburg, PA

Post by chrispitude »

When I bought my 500 used ten years ago, it came with the old 3/4hp headstock with single bearing quill. I purchased a new headstock from Shopsmith a few years ago to get the dual-bearing quill and it was a huge improvement in smoothness over the old headstock. I needed it to use the Shopsmith router to round over a piece of stock. (Boy it was scary turning that speed dial up! I only ever used it in saw or drill press mode before.)

It's a very noticeable improvement over the old headstock, or at least it was for me.

- Chris
eartigas
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Joined: Tue Feb 17, 2009 1:10 pm
Location: Carmel, NY

Upgrade to Poly V

Post by eartigas »

I am planning to convert from Gilmer to Poly one of my Greenies that looks in poorest condition.

I understand that to do such upgrade the following is needed:

New Quill
Poly-V Belt
Drive sleeve assembly (518145)
Idler Shaft Assembly (504177)
Eccentric Bushing assembly (515616)

I am not sure why my old Eccentric Bushing would not work in the new configuration, so I will appreciate any help to confirm this list.

Thanks
Ed
Carmel, NY
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billmayo
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Location: Plant City, FL

2 Bearing & Poly V upgrade

Post by billmayo »

eartigas wrote:I am planning to convert from Gilmer to Poly one of my Greenies that looks in poorest condition.

I understand that to do such upgrade the following is needed:

New Quill
Poly-V Belt
Drive sleeve assembly (518145)
Idler Shaft Assembly (504177)
Eccentric Bushing assembly (515616)

I am not sure why my old Eccentric Bushing would not work in the new configuration, so I will appreciate any help to confirm this list.

Thanks
These items new will cost $400 or more by the time you get them. I know Shopsmith needs the business. However, I recommend and help my customers buy a rebuilt "B" (toggle switch) headstock or the latest model "C" (rocker switch) headstock from a reliable seller and keep your old headstock as a spare or make a MINI Power Station using it. Of course, I rebuild Greenie headstocks and/or take trade-ins.

Yes, I would recommend the latest eccentric bushing from Shopsmith as it has changes that better helps secure the idler shaft than the early eccentric bushings.

Contact me offline if interested or have any questions.

Bill Mayo
Bill Mayo bill.mayo@verizon.net
Shopsmith owner since 73. Sell, repair and rebuild Shopsmith, Total Shop & Wood Master headstocks, SPTs, attachments, accessories and parts. US Navy 1955-1975 (FTCS/E-8)
eartigas
Gold Member
Posts: 205
Joined: Tue Feb 17, 2009 1:10 pm
Location: Carmel, NY

Poly V upgrade

Post by eartigas »

Bill:

Thanks for the insight. I already have an extra quill (single bearing but OK) for the newer model of headstock. I also have a drive sleeve assembly for poly V and a poly belt. So I actually only need the the Idler shaft assembly (on sale now for $88) and the eccentric bushing ($28). My latest greenie has the gilmer belt drive sleeve wasted and probably the idler shaft is poor. I believe, in this case, the change may be worth doing it, even if I will actually shorten it later.

I plan this upgrade for later this year but the parts are now on sale so I asked to make sure I get what is needed.

Comments welcome.
Ed
Carmel, NY
bach939
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Joined: Mon May 16, 2011 12:07 pm

Post by bach939 »

billmayo wrote:From all my experiences, I find that the older 3/4 HP motors are just as powerful as the 1 1/8 HP motors. Insuring that the alignments is right on helps for either motor. I am still using the 3/4 HP motors and/or Gilmer drives in most of my Shopsmiths. Rebuilding the Gilmer clutch helps prevent destroying the Gilmer belt most of the time if the quill is suddenly stopped. I do not use the Gilmer belt Shopsmiths for any sawing or drilling operations. Replacing the bearing in the Gilmer quill with a higher quality bearing really helps the quill accuracy.

I would recommend installing the Poly-V system for anyone with a Gilmer drive Shopsmith when possible. Replacing a damaged Gilmer belt can ruin a good day or two. I see no real reason to replace the 3/4 HP motor unless it is bad. Of course, these are only my opinion.

Bill Mayo
What higher quality bearings do you recommend for the Gilmer quill? If you could give me the bearing numbers would be great.
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holsgo
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Location: Manassas, VA

Post by holsgo »

paulmcohen
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Post by paulmcohen »

chrispitude wrote:When I bought my 500 used ten years ago, it came with the old 3/4hp headstock with single bearing quill. I purchased a new headstock from Shopsmith a few years ago to get the dual-bearing quill and it was a huge improvement in smoothness over the old headstock. I needed it to use the Shopsmith router to round over a piece of stock. (Boy it was scary turning that speed dial up! I only ever used it in saw or drill press mode before.)

It's a very noticeable improvement over the old headstock, or at least it was for me.

- Chris

You want scary try a PowerPro at 10,000 RPM but I still love mine.
Paul Cohen
Beaverton, OR
A 1982 500 Shopsmith brand upgraded to a Mark 7 PowerPro, Jointer, Bandsaw (with Kreg fence), Strip Sander, Ring Master and lots of accessories all purchased new
12" Sliding Compound Mitre Saw, 1200 CFM DC
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