328 LR needle dimenions

[GerryR]

Looking for the actual length of the shank, shoulder and blade of the 328 needles sizes 19/120 and 22/ 140.  I found the overall length of 5.2cm and shank diameter of 1.98mm by searching but can't find the other info.  Any help will be appreciated!  Thanks in advance.

[Tigweldor]

Well, my 328 LR 140 as well as my LR 160 needles have different dimensions than your specs.

The shank - where the needle is fitted into the needle bar - has a diameter of 2,5mm

After 20mm the needle has a shoulder, coming to a thinner diameter of 1,6mm (160) and 1,4mm (140) at the shaft with the groove until it tapers off at the tip.

The distance from the top of the needle to beginning of the eye is 51,6mm

Overall length is very close to 59,8mm - here I didn´t really press down to hard on my analog vernier calipers - didn´t want to dull the tip of a brand new needle.

 

I use the 328 needles on both my Adler 5-8 and Adler 4-4 and these 2 packs are the thinnest/smallest ones that I have - don´t use the 140s much though

Maybe the other classifications on the packages will help you out further

 

Greetings

Hans

Here are some other machines that use this needle :

 Singer 45K class, 132K6.
 Juki LG-158-1.
 Consew SK-6.
 Adler 104, 105, 205.

Edited Thursday at 03:36 AM by Tigweldor

[Constabulary]

12 hours ago, GerryR said:

Looking for the actual length of the shank, shoulder and blade of the 328 needles sizes 19/120 and 22/ 140.  I found the overall length of 5.2cm and shank diameter of 1.98mm by searching but can't find the other info.  Any help will be appreciated!  Thanks in advance.

just wondering for what purpose you need these information.

5.2cm is not the overall length of the needle, it is the length from end of the shank to the upper end of the needle eye.

Just as side information the 328 is a bit special cause the shank diameter increases with the needle size.

[GerryR]

I'm working on a project, just for my amusement, where I changed the needle stroke (I'm presently using the 135x16 needles) of the machine.  Because of this the added stroke causes the shoulder of the needle to just enter the leather on 16 oz and and above, widening the hole at the needle entry point.  I read that the 328 needles have a 1.98mm shank diameter up to size 140 and a larger shank(s) after that.  the 135x16 needles have a 1.98mm shank.  If the 328 needles have a slightly longer blade, I could cut the shank to get the same total needle length (~45mm) and keep the shoulder away from the leather.  This is part of my conversion project of a Chinese patcher to using M-style bobbins.  If the total length of the 328 is near 60mm, as Tigwelder indicated, then maybe I chose the wrong system to modify.  Like I said, just amusing myself.

[CowboyBob]

11 minutes ago, GerryR said:

I'm working on a project, just for my amusement, where I changed the needle stroke (I'm presently using the 135x16 needles) of the machine.  Because of this the added stroke causes the shoulder of the needle to just enter the leather on 16 oz and and above, widening the hole at the needle entry point.  I read that the 328 needles have a 1.98mm shank diameter up to size 140 and a larger shank(s) after that.  the 135x16 needles have a 1.98mm shank.  If the 328 needles have a slightly longer blade, I could cut the shank to get the same total needle length (~45mm) and keep the shoulder away from the leather.  This is part of my conversion project of a Chinese patcher to using M-style bobbins.  If the total length of the 328 is near 60mm, as Tigwelder indicated, then maybe I chose the wrong system to modify.  Like I said, just amusing myself.

Look @ the 190 system of needles it measures 1.98mm shank & 44.50 mm from top of needle to top of the eye hole making it approx 6mm longer than a 135x16

[GerryR]

@CowboyBob  The 190 system works perfectly.  I trimmed 5mm off the top of the shank and can now do 20 oz. leather (machine limit) without the shoulder hitting the leather and widening the top of the hole.  Thank you for your input!

Edited Saturday at 07:22 PM by GerryR