Re: Concern with my Spindle
Dave has a good point. Plus you should be measuring end float when setting tapered roller bearings, not radial float. Tapered Roller Bearings are normally operated with a preload. The Atlas 10¡± and
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Robert Downs
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#102393
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Re: new guy - old 618
Hay Carvel, thank you for those little snipets "Thumbs up!" Ken H in AZ
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Ken H
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#102392
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Re: Welcome to [email protected]
Hot Rodders of the early 50's could take them up to ~140 HP reliably with careful attention to building the bottom end up. There was a system of troughs the dippers on the rods ran in and a manifold
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Bill Williams
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#102391
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Re: Welcome to [email protected]
...and I'm sure a bunch of guys on this site would be happy to help you make space in your shop by taking all those pesky attachments off your hands! 8^) Bruce NJ
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Bruce Freeman
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#102390
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Re: Welcome to [email protected]
I have one of those in my 53 Chevy Advance Design truck. A marvel of Rube Goldberg style engineering. There is another intermediate style of shell bearing as used on my 47 Allis Chalmers tractor. It
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Charles
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#102389
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Re: Welcome to [email protected]
I still have my father's mother's 1955 PG with the "Blue Flame Six"!?? Bill in Boulder CO USA
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Bill Williams
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#102388
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Re: Welcome to [email protected]
Yup. My patents had one of each. Leon Robinson ?? K5JLR Political Correctness is a Political Disease. Politicians and Diapers should be changed often and for the same reasons.
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Leon Robinson
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#102387
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Re: Welcome to [email protected]
True but not the old Chevrolet "Splash and Hope" rod bearings! Pressure feed to them came only with the 235 CID "Powerglide" motor in the 50's.?? Bill in Boulder CO USA
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Bill Williams
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#102386
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Re: Welcome to [email protected]
Automotive and aircraft plain bearings also have pressurized lubrication.?Dave? Sent from my T-Mobile 4G LTE Device
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Dave Matticks
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#102385
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Re: Welcome to [email protected]
The Atlas-built machine database (currently 89% Lathes) is in the Files section of /g/atlas-craftsman/ and click on Files and then on 12a Atlas-Craftsman-AA Machines Databases
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Robert Downs
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#102384
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Re: Welcome to [email protected]
Robert, you pose a very interesting question here. Other than basic conservationism on the part of customers and producers I do not see why! But then the basic design of our lathes was done in an era
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Bill Williams
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#102383
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Re: Welcome to [email protected]
From the photo of the left hand spindle bearing, your machine was obviously a Craftsman 101.07301 (built by Atlas for Sears from 1939 until mid-1957). The highest reported serial number is 030965. At
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Robert Downs
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#102382
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Re: new guy - old 618
Some extracts from the Atlas MOLO for interest . . . . And on the tightening / loosening issue for sleeve bearings . . . Best regards, Carvel Sent: 25 January 2019 10:19 PM To:
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cwlathes
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#102381
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Re: new guy - old 618
There should be a thrust collar with set screw trapping the bearing against the pinned ring. I have not done it but I presume that the way to remove the bearing is to drive the pin from the primary
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David Beierl
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#102380
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Re: new guy - old 618
Thank you David. I thought I was missing something. I may try that. I've already tried holding the gear and giving little baby taps on the screw with a punch. And yes, I realized after I typed the
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mikehostalek
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#102379
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Re: new guy - old 618
It's supposed to be a very close hand fit, but some of mine are (were) quite tight and needed a light touch with abrasive paper not to stick. Suggest gentle prying with a screwdriver using the collar
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David Beierl
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#102378
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Re: new guy - old 618
Thank you all. Can anyone who is familiar advise how the leadscrew drive gear is removed? It appears as though it should slide off, yet doesn't. there is a collar between the gear and the bearing,
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mikehostalek
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#102377
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Re: new guy - old 618
Yes, I believe on the 10" lathe, at least, it was an extra-cost option. Model numbers like TH42 would indicate Timken bearings, horizontal-tensioning countershaft and 42" bed. Without the T, it would
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Jon Elson
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#102376
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Re: new guy - old 618
Hi Don, A liberal application of either 10 or 20 beats the crap out of none! I like Mobil Vactra #2 for the ways. Dave
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Dave Matticks
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#102375
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Re: new guy - old 618
I don't think any "modern" lathes use plain bearings anymore. Tapered roller or sometimes angular contact ball bearings are it. Various grades of both, ranging from reasonable price to you must be
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Dave Matticks
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#102374
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