Rod End Help?

[78280z]

I'm sure a lot of guys here have experience with rod end selection, so I thought I would ask...

 

For a project I'm working on, I need a rod end that will swivel so that the bolt will be at a 20 degree angle to the housing (instead of perpendicular to it). However, the diagrams on McMaster Carr are confusing me (see below).

 

Maximum Ball Swivel Range6° to 22° | 23° to 35°

 

I am not quite sure about their definition of the angle. Say for instance the rod end in question has a "ball swivel" of 6 degrees. Does this mean that it only sweeps 3 degrees in both directions (total sweep of 6 degrees) or does this mean that it sweeps 6 degrees in both directions (total sweep of 12 degrees)?

 

Thanks for any input!

[johnc]

Probably the best resource for rod end and spherical bearing informaiton:

 

http://nhbb.com/assets/pdfs/catalog/AstroCat_2.pdf

 

http://nhbb.com/assets/pdfs/catalog/AstroEng_2.pdf

 

http://nhbb.com/assets/pdfs/catalog/Racing.pdf

 

The angle listed in the McMaster-Carr catalog is the total angle so if they list a 35 degree angle that means 17.5 degrees off of center in any direction. A more common way of stating the angle is "misalignment" which is the degrees off from dead center. You probably need to rethink your design if you're looking for a rod end with 20 degrees of misalignment. NHBB does make some high misalignment rod ends but they typically are COM10 or less in size and they go to, at most, 25 degrees of misalignment.

[78280z]

I will definitely be rethinking the design.

 

Thank you for the quick reply and the information. I really appreciate it!