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Total 8 documents matching your query.

1. TR Gear Box (score: 1): Author: "Geoffrey Byrne" <gkbyrne@optushome.com.au>; Date: Mon, 2 Jan 2006 01:09:26 +1100; Does anyone have a satisfactory explanation for the main shaft second gear top hat bush breaking. I have seen so many broken and all are tension breaks not torsional as would be expected . Geoff Byr; /html/fot/2006-01/msg00000.html (7,068 bytes)
2. Re: TR Gear Box (score: 1): Author: Don Elliott <58tr3a@videotron.ca>; Date: Sun, 01 Jan 2006 14:46:45 -0500; I seem to remember that the flange of the top hat bushing is pre-fabricated separately from the bushing part and then they are swaged (or somehow pressed) together. I think this makes it weak. It mig; /html/fot/2006-01/msg00023.html (7,082 bytes)
3. Re: TR Gear Box (score: 1): Author: "Geoffrey Byrne" <gkbyrne@optushome.com.au>; Date: Tue, 3 Jan 2006 00:31:25 +1100; I believe the bushes are machined from a casting. I have several with casting marks on the edge of the hat rim. The only plausible explanation I can come up with is that due to the machining process; /html/fot/2006-01/msg00026.html (7,300 bytes)
4. Re: TR Gear Box (score: 1): Author: Larry Young <larry.young@pobox.com>; Date: Mon, 02 Jan 2006 13:34:38 -0600; Why does the top hat bushing need to be one piece? I can see no reason for it. Why not have a bushing like the others and a separate thrust washer? Larry Young == unsubscribe/change address requests; /html/fot/2006-01/msg00031.html (6,952 bytes)
5. Re: TR Gear Box (score: 1): Author: "kas kastner" <kaskas@cox.net>; Date: Mon, 2 Jan 2006 11:12:50 -0800; I think that bushing is of sintered bronze and not a particularly good material to start with and has a very sharp machining edge at the bottom the brim of the hat. Some may be of brass and the same; /html/fot/2006-01/msg00032.html (7,129 bytes)
6. Re: TR Gear Box (score: 1): Author: "Robert M. Lang" <lang@isis.mit.edu>; Date: Mon, 2 Jan 2006 21:29:39 -0500 (EST); The part can be whatever material you want, but it needs to have the lube grooves in it, for sure. The key to this part is it NOT breaking at the brim of the hat, because once that occurs, the parts; /html/fot/2006-01/msg00041.html (8,063 bytes)
7. RE: TR Gear Box (score: 1): Author: "Susan and Jack Brooks" <tr3a@att.net>; Date: Mon, 2 Jan 2006 22:17:05 -0800; I'm with Bob on this one. I seem to recall that Quantum Mechanics, John Esposito. does make a one piece top hat that will work in a TR3/4 gearbox. Jack == unsubscribe/change address requests to majo; /html/fot/2006-01/msg00049.html (7,311 bytes)
8. Re: TR Gear Box (score: 1): Author: "Geoffrey Byrne" <gkbyrne@optushome.com.au>; Date: Tue, 3 Jan 2006 23:18:04 +1100; I agree I have rebuild gearboxes by cutting the top hat bush in 2 as you suggest works fine . I just can't figure out the forces which cause it to break the way it does ie its a tension fracture whi; /html/fot/2006-01/msg00064.html (7,168 bytes)

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