PDA

View Full Version : universal joints on steering column



steeringman
02-03-2011, 08:33 AM
story!

when sizing a uni-joint do you need to take loads and forces into account? because all the catalogues only require overall dimensions etc.

all queries are mucho appreciato!

W1N3I
02-03-2011, 09:00 AM
No that's not necessary. U-joints are always infinitely stiff in every situation!
Sorry, I could just not help myself.

Have you heard of shearing or bearing stress?

Mazur
02-03-2011, 11:13 AM
I went to Ace Hardware and their hardware section only specified dimensions for their bolts. Does that man I don't need to take loads into account and just use what fits?



Man I feel like a dick. Probably why some of my friends call me Dick for short http://fsae.com/groupee_common/emoticons/icon_smile.gif.

FloWeh
02-09-2011, 03:11 AM
Just one tip: be carful with universal joints and where you use them, and at what angle. You might loose a lot of torque at angles arround 30 deg. And just because the military sheet metal like joints (APEX...) are used in race car steering systems doe not mean they will be good in an FSAE car. Without power steering your forces might be very high. A good universal joint with a needle bearing is heavy, but has only little play for a whole season.