Chuck Backplate Problem

Chuck Backplate Problem

This topic has 2 replies, 2 voices, and was last updated 14 May 2010 at 17:45 by Speedy Builder5.

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14 May 2010 at 16:38 #51699
Apostolos Bourousis
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@apostolosbourousis64808
Hello dear Friends and warm Greetings from Greece

(Yes we are still alive after EMF Visit !!!)

Recently a friend of mine give me free a 2nd hand Chinesse lathe that i try to restore and use it as is very nice machine and i be very happy to have it in working condition .

My problem is that lathe come without chuck or backplate and as i dont have a large machine to fit an un machined casting backplate and work it i must found a new or used backplate with already made the thread to put it on my lathe and then to make the facing and grooving operations on the lathe to fit .

I look on the web to find the right backplate but i cant find what i need as all the backplates are on Imperial dimensions .

My spindle is 56.5 mm or when i turn my caliper on inch shows 2.225 in.

The therad is 8 TPI . can some friend help me what type of backplate i need please ?

I suppose the Chinesse designer copy some other lathe but which lathe have this spindle ?

My very best regards and many thanks in advance together with a very big sorry for my English as i am totally self learned .

Apostolos

Athens

Greece
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14 May 2010 at 16:38 #5067
Apostolos Bourousis
Participant
@apostolosbourousis64808
Where i can find a part machined backplate for my lathe
14 May 2010 at 17:45 #51700
Speedy Builder5
Participant
@speedybuilder5
I suspect you have a 2.25 x 8tpi spindle. ie 2.225 inch would be the diameter over the crest of the thread??

The Logan 11 inch had a 2.25 x 8tpi try Tony@lathes.co.uk

Also the Southbend 10L (Bit of a rare USA beast)

But be carefull, the spindle nose boss diameter is important as this locates the backplate. I you cant find a backplate, try one of the engineering services in the back of Model Engineer magazine.
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