Does Anyone know what S. R. means (not sherical radius)

[mrcadman2u]

I have a drawing that is calling out S. R. and it does not refer to a sherical radius. It is on a Test Enable switch which is on a Thrust Reverse assy.

Thanks for the help in advance.

Jerry Eden

 

[mrcadman2u]

Thanks to all who replied.

I finally found out the answer. The S.R. does mean spherical radius on the drawing. Although not per spec the S.R. meant that the spherical radius was a concave radius. This is used for feel so that it creates a "feel" so that the finger can find the switch button more easily.

Thanks again for all the help and answers.

Jerry L. Eden
Sr. Design Engineer
Hydraulics and Landing Gear

 

[ewh]

Ahh, then it is just missing one dimension, either radius center, depth of SR or diameter at intersection with the planar surface.
A good example of how just one missing piece of info can cause much confusion.

"Good to know you got shoes to wear when you find the floor." - [small]Robert Hunter[/small]