Jump to content



Photo

IIIA ARM POST CLAMP


  • Please log in to reply
6 replies to this topic

#1 Nacho Minguez

Nacho Minguez

    Advanced Member

  • Members
  • PipPipPip
  • 37 posts

Posted 21 June 2005 - 07:30 AM

Hi,

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

Best
Nacho Minguez

nachostd@terra.es
  • 0

#2 charlesneufeld

charlesneufeld

    Advanced Member

  • Sustaining Members
  • 170 posts

Posted 21 June 2005 - 08:23 AM

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
  • 0

#3 Nacho Minguez

Nacho Minguez

    Advanced Member

  • Members
  • PipPipPip
  • 37 posts

Posted 21 June 2005 - 09:25 AM

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

Best
Nacho
  • 0

#4 jay kilroy

jay kilroy

    Advanced Member

  • Sustaining Members
  • 222 posts
  • Pennsylvania, USA

Posted 21 June 2005 - 03:51 PM

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?
  • 0

#5 Evan Barthelman

Evan Barthelman

    Member

  • Members
  • PipPip
  • 10 posts
  • Redondo Beach, California

Posted 22 June 2005 - 02:04 PM

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
  • 0

#6 Janice Arthur

Janice Arthur

    Advanced Member

  • Moderators
  • PipPipPip
  • 811 posts

Posted 23 June 2005 - 08:46 PM

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}>


  • 0

#7 Janice Arthur

Janice Arthur

    Advanced Member

  • Moderators
  • PipPipPip
  • 811 posts

Posted 23 June 2005 - 08:52 PM

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
  • 0




PLC Electronics Solutions

Varizoom Follow Focus

Paralinx LLC

Teradek

Ritter Battery

Boland Communications

Media Blackout - Custom Cables and AKS

PLC - Bartech

Wireless Video Systems

SkyDreams

Engineered Cinema Solutions

rebotnix Technologies

IDX

GPI Pro Systems

Omnishot Systems

BOXX

Betz Tools for Stabilizers