WTB: 2”-5 TPI chuck backing plate

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Glenn Brooks
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Joined: Mon Nov 10, 2014 1:39 pm
Location: Woodinville, Washington

WTB: 2”-5 TPI chuck backing plate

Post by Glenn Brooks » Thu Sep 10, 2020 1:27 pm

Seeking lottery tickets for either a 4”, 5” or 6” backing plate with old school 2”ID -5 TPI threaded chuck backing plate. This to fit a 1930’s Van Norman 10” dividing head spindle.

Also looking for a 1 1/4”ID - 12 TPI backing plate (5” or 6” chuck) for a Dalton 7 lathe....

Thanks,
Glenn
Moderator - Grand Scale Forum

Motive power : 1902 A.S.Campbell 4-4-0 American - 12 5/8" gauge, 1955 Ottaway 4-4-0 American 12" gauge

Ahaha, Retirement: the good life - drifting endlessly on a Sea of projects....

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FLSTEAM
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Re: WTB: 2”-5 TPI chuck backing plate

Post by FLSTEAM » Fri Sep 11, 2020 6:53 am

Are you sure the thread is 5 tpi and not 4 1/2 ?
BTW you can buy an 1 1/4-12 nut and weld it to a steel disk to make your own backing plate.

JB
http://www.ngshay.com/
Shay drawings and castings

Glenn Brooks
Posts: 2236
Joined: Mon Nov 10, 2014 1:39 pm
Location: Woodinville, Washington

Re: WTB: 2”-5 TPI chuck backing plate

Post by Glenn Brooks » Fri Sep 11, 2020 12:15 pm

JB, not sure, I need to go recheck... I did measure it at 5 TPI the other day, but did not check the 4 1/2 gauge. have since read VN threads reported at both 4 1/2 and 5. Maybe they are actually 4 1/2, but 5 fits, so people don’t check further, and another urban legend survives... I will confirm.

Thanks for the heads up!
Glenn
Moderator - Grand Scale Forum

Motive power : 1902 A.S.Campbell 4-4-0 American - 12 5/8" gauge, 1955 Ottaway 4-4-0 American 12" gauge

Ahaha, Retirement: the good life - drifting endlessly on a Sea of projects....

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Lovesthedrive
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Joined: Sun Dec 18, 2011 10:52 pm
Location: Downeast Maine

Re: WTB: 2”-5 TPI chuck backing plate

Post by Lovesthedrive » Thu Sep 17, 2020 8:32 am

Are you aware of the website Littlemachineshop dot com?
1952 John Deere model 60

Wanted: Half size steam tractor. Will trade land in Maine

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