Kity 663 spindle thread etc.

[WoodMangler]

Two questions :-

1) Does anyone know the headstock spindle thread (and thread-form) for a Kity 663 ?

2) If a chuck is described as attaching to the spindle by a 'standard 1" 8tpi', what is the thread-form likely to be ?

 

[Vic Perrin]

Two questions :-

1) Does anyone know the headstock spindle thread (and thread-form) for a Kity 663 ?

2) If a chuck is described as attaching to the spindle by a 'standard 1" 8tpi', what is the thread-form likely to be ?

It means that the chuck is designed to fit on a spindle that has a thread size of 1" diam with 8 teeth per inch of spindle length

 

[Spindle]

Hi

1" x 8 is a BSW thread

http://www.threadcheck.com/technical-do ... s-pg11.pdf

Regards Mick

 

[WoodMangler]

It means that the chuck is designed to fit on a spindle that has a thread size of 1" diam with 8 teeth per inch of spindle length

Thanks Vic, but I was looking for the thread form - UNC, Whitworth, 55deg, 60 deg etc.

 

[Spindle]

Hi

Just to add confusion, it could also be a UNC form - I think you'll need to be more specific as to what has this thread.

Regards Mick

 

[Walter Hall]

Both BSW and UNC thread forms include a 1" x 8tpi thread.

However most modern lathes (and chucks) are UNC see Teknatool information sheet page 4:

http://www.teknatool.com/products/Chuck ... Thread.pdf

Also according to that list (page 5) and this one from Toolpost, Kity lathes are M33 x 3.5

http://www.toolpost.co.uk/pages/Chucks_ ... _data.html

 

[WoodMangler]

However most modern lathes (and chucks) are UNC see Teknatool information sheet page 4:

This is a modern chuck, so almost certainly UNC.

Also according to that list (page 5) and this one from Toolpost, Kity lathes are M33 x 3.5

Thanks.