Heavy 9 parts interchangeability, Headstock parts question.

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catpal

Plastic

Joined

Apr 5, 2016

• May 3, 2016

• #1

Hello, I have a South Bend 9 inch Junior lathe,made in 1931 catalog no.22-yb. I need some headstock parts. I have found a complete headstock from a 9 inch South Bend catalog no. 322-yb, Looking at the picture it looks a bit different as mine has tabs on the front of the headstock and the one for sale does not. Also the back gear lever looks more modern on the one for sale. The seller doesnt know when it was made or the serial number from the lathe it came from. My question, will parts interchange and how to find out. THANKS! the picture is of the one for sale

 

Last edited: May 3, 2016

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kitno455

Titanium

Joined

Jul 9, 2010

Location

Virginia, USA

• May 3, 2016

• #2

show us the picture too...

allan

 

M

mdshunk

Hot Rolled

Joined

Nov 14, 2015

• May 3, 2016

• #3

I have a 1928 22-YB and my headstock is identical to the pictures you posted. I'm not sure what the question is. The only "tabs" I see in your picture are where the gear guards bolt onto. I have seen some headstocks that have bumps in the headstock casting, at the spindle end, to act as a sort of carriage bump stop, I suppose.

 

C

catpal

Plastic

Joined

Apr 5, 2016

• May 3, 2016

• #4

Thank you for your reply.On the headstock of the 1931 22-yb, there are two tabs on the front of the headstock casting where screws go, to bolt it to the lathe bed. here is a picture of it. The question is, will the parts from the other one fit the 1931 22-yb lathe, such as the bull gear,or are they different,as the headstocks seem similar, but not the same. Trying to find out if the parts are interchangeable.

 

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mdshunk

Hot Rolled

Joined

Nov 14, 2015

• May 4, 2016

• #5

Indeed, what we're looking at are the differences between the pre-1931 and post 1931 headstock castings. The spindle and bull gear are the same.

 

K

kitno455

Titanium

Joined

Jul 9, 2010

Location

Virginia, USA

• May 4, 2016

• #6

Actually, that change happened a little earlier, late 1929 or early 1930. The additional headstock mounting bolts were added, the gear guards were changed, and I thought the spindle was made slightly longer, because the belts got wider. I think you would have to use the entire headstock.

allan

 

C

catpal

Plastic

Joined

Apr 5, 2016

• May 4, 2016

• #7

Thank you for your reply!

mdshunk said:

Indeed, what we're looking at are the differences between the pre-1931 and post 1931 headstock castings. The spindle and bull gear are the same.

Click to expand...

I went ahead and ordered the headstock then. kind regards!

 

C

catpal

Plastic

Joined

Apr 5, 2016

• May 4, 2016

• #8

I put pictures in now. thanks.

 

C

catpal

Plastic

Joined

Apr 5, 2016

• May 4, 2016

• #9

kitno455 said:

Actually, that change happened a little earlier, late 1929 or early 1930. The additional headstock mounting bolts were added, the gear guards were changed, and I thought the spindle was made slightly longer, because the belts got wider. I think you would have to use the entire headstock.

allan

Click to expand...

Thank you for your reply, I have ordered the headstock per the earlier advice that the spindle and bull gear were the same. Hopefully they will be the same. If not,I guess I will have a headstock to sell,The seller said everything was in fine condition,no noticable wear. so that part is good. kind regards!

 

M

mdshunk

Hot Rolled

Joined

Nov 14, 2015

• May 4, 2016

• #10

kitno455 said:

Actually, that change happened a little earlier, late 1929 or early 1930. The additional headstock mounting bolts were added, the gear guards were changed, and I thought the spindle was made slightly longer, because the belts got wider. I think you would have to use the entire headstock.

allan

Click to expand...

I don't know. My '28 has 1-1/4" wide belt flats on each cone pulley step.

 

C

catpal

Plastic

Joined

Apr 5, 2016

• May 4, 2016

• #11

mdshunk said:

I don't know. My '28 has 1-1/4" wide belt flats on each cone pulley step.

Click to expand...

That seems the same as the 1931 22-yb lathe. Thanks!

 

K

kitno455

Titanium

Joined

Jul 9, 2010

Location

Virginia, USA

• May 4, 2016

• #12

And my 1927 has 1" wide steps. Given the 'land' on the side of the headstock where the gear covers attach, I am hoping you are looking at the 1929/29 headstock, and you might luck out on the spindle interchange. My headsock does not have those flat areas.

allan

 

C

catpal

Plastic

Joined

Apr 5, 2016

• Dec 1, 2016

• #13

UPDATE on parts interchagabilty on 1931 Head and the earlier South bend Jr Headstock.

Update on the different headstocks. I found that the spindle is shorter on the older headstock, but the bull gear is the same and did fit on the later spindle.

 

T

tommy1010

Stainless

Joined

Apr 21, 2010

Location

northeastern Pa, USA

• Dec 2, 2016

• #14

What was wrong with your original bull gear? If it is missing a few teeth and you want to part with it I would be interested.

 

C

catpal

Plastic

Joined

Apr 5, 2016

• Dec 13, 2016

• #15

Thank you for your question, I am not sure what I am going to to do with the old bull gear, I might attempt to repair it and put it on the other headstock. but thanks for asking.