Bogie Wheel Re-rubbering

[hrpearce]

Originally Posted by Paul Dutton

Rubber is measured in SHORE ratings. Standard O rings are 70 Shore and harder ones are 90 shore. 60 shore would be very soft, too soft in my opinion! Would 90 shore be too hard tho and cause premature breakup? Im a hydraulics engineer so I only understand seals...!!!

Paul it all depends on what scale you are using, there are several these are the three most commonly used.