Todays Ruckstell question...

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Model T Ford Forum: Forum 2012: Todays Ruckstell question...
Top of pagePrevious messageNext messageBottom of page Link to this message  By Mark Gregush Portland Oregon on Saturday, October 27, 2012 - 12:44 pm:

How tight should the P-211 bearing fit in the housing? My quick measurements show the hole in the casting at 4.338 and the bearing at 4.330. Granted this bearing will not be used as in my OP there is too much slop in the inner race both in and out and up and down. If I proceed using this housing and a new bearing and the hole is still a bit large, which would be better on final assembly, shim stock or Lock-tight?
Thanks
MarkG


Top of pagePrevious messageNext messageBottom of page Link to this message  By Stan Howe Helena, Montana on Saturday, October 27, 2012 - 02:33 pm:

Braze or weld it up and turn it to specs on a lathe.


Top of pagePrevious messageNext messageBottom of page Link to this message  By Mark Gregush Portland Oregon on Saturday, October 27, 2012 - 05:18 pm:

Thanks Stan. Tapered mandrels at each end of the axle tube, a dog attached to the brake backing plate to turn it?


Top of pagePrevious messageNext messageBottom of page Link to this message  By Mark Gregush Portland Oregon on Monday, October 29, 2012 - 12:37 am:

Before I take the housing to the see about getting it welded and turned, what size should the hole be?
I looked in the Ruckstell book by the club and could not find it.
Thanks
MarkG


Top of pagePrevious messageNext messageBottom of page Link to this message  By Glen Chaffin on Monday, October 29, 2012 - 01:25 pm:

Mark, Get some 0.005 shim stock and make a shim. It is much easier and less expensive and will work just fine.


Top of pagePrevious messageNext messageBottom of page Link to this message  By Richard Gould on Monday, October 29, 2012 - 06:03 pm:

8 thou isn't enough to worry about IMHO. If your side to side clearance is in the 4-6 thou range you won't get the unit rocking around in operation. Welding up and turning down is problematic. Warpage is a concern so is centering the cut, not to mention being able to weld well enough so you have little to no voids. I just got thru welding on a Perfecto housing. They are also cast steel and can be welded. Using a mig welder, I found it hard to direct the weld to exactly where you want it. If you are concerned about the clearance, use shims like Glen suggests.


Top of pagePrevious messageNext messageBottom of page Link to this message  By Stan Howe Helena, Montana on Monday, October 29, 2012 - 07:26 pm:

The main thing to be concerned about is keeping the bearing race from turning in the housing. The thrust pressure on the side of the bearing is supposedly enough. I dunno. I like em so the bearing is nearly a press fit. Shim stock works. An easier fix than welding it up and turning it down is to sell this one on ebay and buy a new one from Glen. =) =) =) I think that's what most of the Ruckstell parts on ebay are, something that was too worn out to use so they bought a new part to replace it and are selling the used one.

By the way, the bearing size is 60 x 110 x 22 mm. All ball bearing sizes are in metric. So the diameter of the boss for the bearing is 110 mm. Make sure that the boss isn't worn down, the depth of that is what controls the ring and pinon clearance. You can shim behind the bearing if you need to to get the correct depth.


Top of pagePrevious messageNext messageBottom of page Link to this message  By Mark Gregush Portland Oregon on Monday, October 29, 2012 - 08:52 pm:

Thanks every one. I talked to Dave at Chaffin's today. This all give me something to work with. It would be nice to have one in better condition so my eyes could see it's fitment but i guess having a worn out one to start with, is a good a place to start. When I get the new parts I can compare them to these for a good lesson.
MarkG


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