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Motor belt for Singer 111w151


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#1 irhunter

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Posted 25 January 2019 - 05:28 AM

My machine came with a smooth leather motor belt. It is old and the link is now pulling out of the leather.

 

So, I will buy a new belt.

 

Should I look for a similar smooth leather/link belt, or is there a better alternative?

 

I am seeing pre-made belts with knob things on the inner side, like this:

 

https://www.mysewing...-174283-singer/

 

 

 



#2 SINNED

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Posted 25 January 2019 - 08:01 AM

Leather belts stretch in use, so I would cut the damaged end straight across with razor blade as close to the link hole as you can. Make new hole with punch or suitable tool. Use pliers to bend link into hole and hammer closed. I think the belt will actually fit better if you have only taken 50-75 mm off. If you buy new leather belt you may still have to alter to fit. If you do not want a leather belt then a vee belt (like car fan belt) is better for this machine but size needs to be exact.
Good luck.

#3 irhunter

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Posted 25 January 2019 - 08:08 AM

Thanks. But, I will need a new belt. I did what you suggested, and it the linked just pulled out again. I think the leather is just too old.


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#4 Schneiderfrei

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Posted 25 January 2019 - 09:26 AM

That old leather could be pretty degraded. There is bound to be a modern equivalent.

 

The knob things are fine, but you should look up the model of your machine and find the original specs on the belt. don't measure the old one it's undoubtedly stretched.

 

Often there is an inner and an outer diameter to consider, as well as the width.

 

What is the model you have??


Edited by Schneiderfrei, 25 January 2019 - 09:30 AM.

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#5 Henry Hall

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Posted 25 January 2019 - 09:42 AM

A v-belt is better. They are pretty solid and resistant to stretching. They come in different thicknesses. A truncated v (hence the name) that fits into the groove of the pulley.

 

Like these.

 

Is the 111w151 a leather-stitching machine?


"Luxury must be comfortable, otherwise it is not luxury." - Coco Chanel.


#6 irhunter

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Posted 25 January 2019 - 11:56 AM

That old leather could be pretty degraded. There is bound to be a modern equivalent.

 

The knob things are fine, but you should look up the model of your machine and find the original specs on the belt. don't measure the old one it's undoubtedly stretched.

 

Often there is an inner and an outer diameter to consider, as well as the width.

 

What is the model you have??

It is a Singer 111w151.

 

The parts list just calls for a leather belt which one cuts to length.

 

A v-belt is better. They are pretty solid and resistant to stretching. They come in different thicknesses. A truncated v (hence the name) that fits into the groove of the pulley.

 

Like these.

 

Is the 111w151 a leather-stitching machine?

 

Those look good. If I can find one of the correct length, I'll give that a try.

 

Not leather-specific. It is a straight-stitch, needle-feed, medium-duty industrial machine.
 



#7 Schneiderfrei

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Posted 25 January 2019 - 08:20 PM

He he, should have seen that coming. Get one that looks nice. ;)


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#8 Schneiderfrei

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Posted 25 January 2019 - 09:03 PM

I also deserve censure for not seeing the model number in the title.

 

Hoping this link proves successful.

 

https://books.google...&q=belt&f=false

 

It mentions 5/16 x 60 inches, on page 104, 105, 106

 

The book is

 

TM 10-3530-202-10
DEPARTMENT OF THE ARMY TECHNICAL MANUAL
OPERATOR'S MANUAL
SEWING MACHINES FOR THE REPAIR OF
PARACHUTES AND ALLIED EQUIPMENT,
SINGER MODELS
112W116 (ESN 3530-892-4636)
131W113 (FSN 3530-222-3433),
7-33 (FSN 3530-892-4651),
97-10 (FSN 3530-241-3282),
17W15 (FSN 3530-892-4646),
55-5 (FSN 3530-892-4643),
111W155 (FSN 3530-359-8856), AND
111W151 (FSN 3530-892-4629)     -     BELT, ROUND: Leather: 5/16"x 60"  

 

Hope that helps

 

G


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#9 irhunter

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Posted 25 January 2019 - 10:50 PM

I also deserve censure for not seeing the model number in the title.

 

Hoping this link proves successful.

 

https://books.google...&q=belt&f=false

 

It mentions 5/16 x 60 inches, on page 104, 105, 106

 

The book is

 

TM 10-3530-202-10
DEPARTMENT OF THE ARMY TECHNICAL MANUAL
OPERATOR'S MANUAL
SEWING MACHINES FOR THE REPAIR OF
PARACHUTES AND ALLIED EQUIPMENT,
SINGER MODELS
112W116 (ESN 3530-892-4636)
131W113 (FSN 3530-222-3433),
7-33 (FSN 3530-892-4651),
97-10 (FSN 3530-241-3282),
17W15 (FSN 3530-892-4646),
55-5 (FSN 3530-892-4643),
111W155 (FSN 3530-359-8856), AND
111W151 (FSN 3530-892-4629)     -     BELT, ROUND: Leather: 5/16"x 60"  

 

Hope that helps

 

G

 

Thanks for the book link. I actually already had the book...but, I was only looking at my parts diagram from Singer, and it doesn't list a belt at all. I also have a US Navy document which covers the machine.

 

Another reality for my machine...it came with a table/motor which were not originally paired to the head.

 

It was a little bit of a mess when I bought it. The head did not fit well on the table, the hinges were MIA, and the motor was running in the wrong direction! Good grief.

 

Anyway, I expect my belt length might not be OEM.

 

I will report back with my solution.

 

Roy



#10 Henry Hall

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Posted 26 January 2019 - 02:05 AM

The belt length shouldn't pose a major problem. They available in many lengths and its easy to adjust the angle of an under-the-table motor to take up the small amount of slack.


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"Luxury must be comfortable, otherwise it is not luxury." - Coco Chanel.


#11 Schneiderfrei

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Posted 26 January 2019 - 09:36 AM

This is my current project:

 

http://movsd.com/Bes...msg4452#msg4452

 

G


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#12 irhunter

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Posted 26 January 2019 - 09:46 AM

The belt length shouldn't pose a major problem. They available in many lengths and its easy to adjust the angle of an under-the-table motor to take up the small amount of slack.

 

Copy. Thanks.

 

 

 

This is my current project:

 

http://movsd.com/Bes...msg4452#msg4452

 

G

 

'So, the Juki, machine screws are imperial British Standard screws in millimeter lengths, and there are nearly a dozen different ones in the machine."

 

Oh boy, those screws sound like a handfull. I own a truck with bolts which have metric heads but are otherwise SAE.


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#13 greger

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Posted 26 January 2019 - 01:53 PM

At the library there are Millwright books.
Some of these should explain very clearly which belt is best.
How to figure the right length, width, depth and other details that are of consideration.



#14 Schneiderfrei

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Posted 26 January 2019 - 02:10 PM

As I was writing my last response, I received 3 replacement feed dog screws. $3.50 USD each and tax, shipping and exchange rate later = $35.00 AUD. 

 

I am coming to think that most of these old machines were built by contractors, and in many cases the parts are interchangeable.

 

G


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#15 irhunter

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Posted 09 February 2019 - 07:35 AM

To close this thread off...

 

I went ahead and talked to my normal supplier of parts. They recommended just going with a new leather belt...and, that's what I did.

 

FYI, great people at:

 

Ralph's Power Sewing in Denver.

 

https://www.powersew.com/

 

Roy






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