Thread: Which bolts to use with heim joints

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try Aircraftspruce co---they have a web site

I don't suppose those Seals-it heim joint washers, with the rubber edge seal would count as a safety washer? I have seen them recommended for use on the panhard bar, and other suspension components using heim joints to help protect them from dirt, etc.

Would you recommend them?
http://www.sealsit.com/rodend.asp

The rubber seals have zero strength so they are not a safety washer. The safety washer (as explained by others earlier) must be larger than the inner race of the rod end so that the bolt head cannot pull thru in case of failure. Of course, if you put a big washer on each side of the race, the angle of compliance is reduced....that is why they sell rod ends with extended races....to get the bolt and washer out further to allow more angle. The rubber seals have a metal ring on the inside and go over the bolt; one seal on each side. They also do a nice job of trapping dirt next to the race.

By the way, for those who are not aware, rod ends come in several "grades" like bolts do. If you are using 5/8" or 3/4" rod ends, for suspension applications, make sure the MINIMUM load rating is about 30,000 pounds (higher is better). If you are buying the commercial rod ends ($10 to $15), they are rated at perhaps 10,000 pounds and you are asking for trouble. Good rod ends are not cheap, there is no "bargain" on the quality aisle. Baker Precision is a good source for rod ends; their web pages have technical specs plus good practical info regarding rod ends. Just like bolts, you do not want to bet your life on a cheap part.

mike in tucson

Originally Posted by robot

They also do a nice job of trapping dirt next to the race.

Good point! Thanks Mike.