Shopsmith Forums

wannabewoodworker wrote:I think JPG meant to call your attention to this:



Mine is identical to yours and had 2 spiral retainers inner and outer. The thing I think mine is missing is the screw and washer above the eccentric mounting position. I will have to investigate tomorrow?

Yes Indeedy! I went ahead and posted that inadequate pix after spending
way too much time trying to get it right. I kept screwing it up!

The screw/washer were not used in the earlier Greenies and used clips held by the bolt under the bore. The 'clips' had a longer 'finger' on the outboard end. The longer finger keeps the bearing from creeping out of the bore in the eccentric, and the shorter finger keeps the eccentric from creeping into the headstock.

JPG40504 wrote: The screw/washer were not used in the earlier Greenies and used clips held by the bolt under the bore. The 'clips' had a longer 'finger' on the outboard end. The longer finger keeps the bearing from creeping out of the bore in the eccentric, and the shorter finger keeps the eccentric from creeping into the headstock.

JPG, do you have a pic? Mine (a '55") did not have the screw/washer, but I also did not find any clips on the bolt? Do I need to fab something to function as such?
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I will try to get a pix tomorrow!

Since you do not have the 'clips', I would drill and tap a hole for a screw and washer at the top of the bore. I would locate it in the thickest part of the casting web.

JPG40504 wrote:You DO see the groove on the other end do you not?

Actualy the inner retaining ring was there, it was the outer ring that was missing. It is on order:D.

fiatben wrote:JPG, do you have a pic? Mine (a '55") did not have the screw/washer, but I also did not find any clips on the bolt? Do I need to fab something to function as such?

I don't have this model headstock so I can't check myself but is there enough room to drill and tap for a screw without weakening the casting?:eek: I think I would fabricate some sort of a clip.

In the attached photo, notice that the casting has been beefed up somewhat and that there is a pad that has been developed for the top screw. This pad area is also visible in the images of the casings that Mike posted.

The screw located at 7 o'clock is in the eccentric. I had not noticed this before. This screw appears to limit the inward motion of the eccentric while the other screw limits the outward motion.

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Here's a thought that occurred to me. This machine is 55 years old and I don't see any sign of it ever having any kind of keeper on the eccentric. It apparently ran fine for many years. If the eccentric is turned until tight and the bolt is snugged down, what could make it "slip?" I am all for improvements, especially if they enhance my work, but "if it aint broke, don't fix it."

Comments?

fiatben wrote:Here's a thought that occurred to me. This machine is 55 years old and I don't see any sign of it ever having any kind of keeper on the eccentric. It apparently ran fine for many years. If the eccentric is turned until tight and the bolt is snugged down, what could make it "slip?" I am all for improvements, especially if they enhance my work, but "if it aint broke, don't fix it."

Comments?

I really agree. I am always hesitant to make this sort of change unless some situation makes it necessary.

WORD OF CAUTION: DO NOT over tighten the bolt that secures the eccentric. Those ears can be broken by doing that.

I concur. Reassemble it without the keeper and after using it determine if it's a problem. If it is a problem, and you need to use a keeper, is there enough room between the bold that secures the eccentric and the eccentric itself for a small bolt with a washer on either side of the eccentric?

Dusty: You make a relevant point. I was echoing what Bill Mayo has described elsewhere.

Does the eccentric have the pointy set screw that secures the bearing in the eccentric by way of a groove in the bearing?

I will post pix of retainer later today!

JPG40504 wrote:Dusty: You make a relevant point. I was echoing what Bill Mayo has described elsewhere.

Does the eccentric have the pointy set screw that secures the bearing in the eccentric by way of a groove in the bearing?

I will post pix of retainer later today!

This question may not have directed to me but - the screw (at 7 o'clock) parallels the outer edge of the bearing and is rather short. There is no 'groove' in the outer race.

The eccentric retaining screw (high noon) is 3/4" long and comes nowhere near the bearing.