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Metalworking (rec.crafts.metalworking) Discuss various aspects of working with metal, such as machining, welding, metal joining, screwing, casting, hardening/tempering, blacksmithing/forging, spinning and hammer work, sheet metal work. |
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#1
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ball bearings spec table
Why not go to the local auto supply. They have bearings and can order anything.
We used to buy our disk drive bearings and got the correct spec - they had the books. Martin Martin Eastburn @ home at Lions' Lair with our computer lionslair at consolidated dot net NRA LOH & Endowment Member NRA Second Amendment Task Force Charter Founder Ignoramus9035 wrote: This is not for me, it is for my friend, who does not use usenet. He needs some bearings and he wants to find standard industry designations (like 6011, etc). I checked machinery handbook and did not find that sort of table, even though it talks at length about bearings. He needs some 1" ID by 2" OD bearings. I know that McMaster has them, but he (and I) is not sure whether there are different specs. And he is hoping he can find a better deal on ebay if he knows what codes to look for. He wants to basically make a wood shaper that would spin at 23,000 RPM. (!). i ----== Posted via Newsfeeds.Com - Unlimited-Unrestricted-Secure Usenet News==---- http://www.newsfeeds.com The #1 Newsgroup Service in the World! 120,000+ Newsgroups ----= East and West-Coast Server Farms - Total Privacy via Encryption =---- |
#2
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ball bearings spec table
On Sat, 04 Mar 2006 22:02:19 -0600, "Martin H. Eastburn"
wrote: Why not go to the local auto supply. They have bearings and can order anything. We used to buy our disk drive bearings and got the correct spec - they had the books. Yabbut, he wants to spin a 1" shaft of indeterminate length between centers at 23K RPM, and he'll probably want to hang some sort of a planer head and replaceable knife-sets off that shaft - and that's a LOT of centrifugal force to be experimenting with. The ball bearings are the least of his problems... If he gets his math wrong on the forces involved, or the shaft straightness and balance isn't perfect, the whole thing can grenade in the operator's face. And if you haven't guessed, that is bad. ;-) I'd go buy a planer that's the right size for the job as the basis for the 'custom machine', even if he has to make modifications to the infeed and outfeed or build a buck to hold the blanks of whatever he plans to run through it. Costs a bit more, but it'll be a turnkey, factory balanced, and therefore reasonably safe (*) machine. And you can buy replacement parts and knife sets off the shelf. (* Stuff Happens, but the odds are a lot better.) -- Bruce -- -- Bruce L. Bergman, Woodland Hills (Los Angeles) CA - Desktop Electrician for Westend Electric - CA726700 5737 Kanan Rd. #359, Agoura CA 91301 (818) 889-9545 Spamtrapped address: Remove the python and the invalid, and use a net. |
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