[AT] hyd cylinder different inlet threads?

[Cecil Bearden]

ORB is not metric.  Here is a link to ORB dimensions. 
http://www.hyvair.com/pdf/saeoringport.pdf

Cecil in Okla


On 5/9/2017 7:10 AM, Len Rugen wrote:
> I'm pretty sure it's ORB, it's just they don't stock the fitting to fit the cylinder they sell.  The threads measure about 16mm outside, but I don't know how ORB are sized, I suspect it's ID, like pipe, but metric?  They are pretty fine too.
>
> Len Rugen
>
> rugenl at yahoo.com
>
>
>   
>
>      On Monday, May 8, 2017 11:09 PM, deanvp <deanvp at att.net> wrote:
>   
>
>   I haven't seen the original post or know what era the hydraulic cylinder is but JD switched to the ORB type connection on their hydraulic cylinders when the New Generation tractors were introduced in 1961.
>
>
> Sent from my Verizon, Samsung Galaxy Tablet
> --------  introducein19Original message -61-------From: Cecil Bearden <chydrlicrrbearden at copper.net> Date: 5/8/17  2:13 PM  (GMT-07:00) To: Antique tractor email discussion group <at at lists.antique-tractor.com> Subject: Re: [AT] hyd cylinder different inlet threads?
> Len:
>
> Probably O-Ring Boss.   ORB  You can get an adapter.  Take a look at
> Surplus Center's website, they have examples of the sizes. Discount
> hydraulic hose also does..
>
> Cecil in OKla
>
>
> On 5/8/2017 10:08 AM, Len Rugen wrote:
>> I had to buy a replacement hydraulic cylinder.  Every one I've ever had had 1/2" pipe threads.  When I tried to put my hose on, I couldn't get the treads to start... then I looked closer.  WAY smaller.  The plastic shipping plug had a O-ring, doesn't look like tapered pipe threads.
>> Sigh, this wouldn't be so bad if it wasn't 20 miles one way.
>>
>> Len Rugen
>>
>> rugenl at yahoo.com
>>
>>
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