IIIA ARM POST CLAMP

[Nacho Minguez]

Hi,

 

where could I find a post clamp with bearing for a IIIA arm post?

 

Best

Nacho Minguez

 

nachostd@terra.es

[charlesneufeld]

Peter Abraham had a great idea for this. If this is what you meant - a frictionless arm post.

 

 

(Quote)

Yeah. A highly appealing idea. Here's how you do it:

 

1. Purchase the flat washer-covered Needle Bearing shown in the link here. ( Reference to part number 2489K5 ). $ 7.00 per unit.

 

2. Make sure you buy one that is 5/8 inch ID and at least 1 inch OD.

 

3. Purchase two of these Split Collars from this site. Make sure it also has an ID of 5/8 inch.

 

4. Clamp the split collar on your IIIA Arm Post, just where it enters the arm end. Just BELOW the split collar, place the needle bearing.

 

5. Make sure your arm post is long enough that it sticks out the bottom of the arm a bit. Attach the second split collar on the bottom, to insure that it cannot come out the top easily. There you go !!! A foolproof way to have a frictionless IIIA Arm Post for about Ten Dollars US.

 

Peter Abraham

New York

(Quote)

 

 

 

good luck!

~C

[Nacho Minguez]

Thank you for the idea, really nice. But, somebody sell this kind of items?

 

Best

Nacho

[jay kilroy]

Thank you for the idea, really nice. But, somebody sell this kind of items?

 

Best

Nacho

<{POST_SNAPBACK}>

 

That's it you can do it yourself. Why pay like a 300% upgrade from some company to have the same thing?

[Evan Barthelman]

That's what I did on my EFP. Works great when you need to get through tight doors and such. I am, however, a bit concerned that the latteral stresses on the top of the arm might snap the thin piece that holds the top of the post. I tend to use it only when necessary, and clamp it most of the time.

 

Has anyone been running this type of setup and have "years of use" to prove that I'm just too cautious?

 

-Evan

[Janice Arthur]

That's what I did on my EFP.  Works great when you need to get through tight doors and such.  I am, however, a bit concerned that the latteral stresses on the top of the arm might snap the thin piece that holds the top of the post.  I tend to use it only when necessary, and clamp it most of the time.

 

Has anyone been running this type of setup and have "years of use" to prove that I'm just too cautious?

 

-Evan

<{POST_SNAPBACK}>

[Janice Arthur]

Hi,

 

where could I find a post clamp with bearing for a IIIA arm post?

 

Best

Nacho Minguez

 

nachostd@terra.es

<{POST_SNAPBACK}>

 

 

Nacho;

 

If I understand your request, here is what I've done for decades.

 

Buy the Post Clamp from PRO and it should come with a Nylon washer that stays between the clamp and the arm meeting point and you get no friction and its fool proof. I bought my last one from them when Bob DeRose was around so maybe they don't make them any more? Ask.

 

If you want to buy one from a cheap place try a google search on McMaster-Carr and they have what you want for $8.00