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double UJ'd propshafts
datalas:
--- Quote from: "SteveG" ---
--- Quote from: "clbarclay" ---As smo says, except its cardon joint, a double cardon joint would be the equiverlant of 4 UJs or a cardon joint at each end of the propshaft.
Search for 'cardon' using the mud club search (top middle of the page) there is already a wealth of information on this site alone.
--- End quote ---
You are all wrong! :twisted: :twisted:
It's Cardan not Cardon! :wink: :wink: :wink: :wink: :wink: :wink:
Steve :P :P
--- End quote ---
Well, he might not have been, he said search for "cardon", he might have just been aware that nobody on here can spell :D incidentally, it's not a double anything either ;)
Eeyore:
D'oh! #-o
This weeks prize for observation goes to SteveG! =D>
Well spotted, that man!
Cheers
8)
Eeyore
Man, how red is my face! :oops: :lol:
mark.yellow.series.3:
--- Quote from: "Eeyore" ---Propshafts for Begineers No 1.
An interesting and oft overlooked fact of Universal Joints (UJs). Increase the angle they work trough by 5deg and the rate of wear increases by and order of magnitude. It's all to do with accelerations on the bearing surfaces apperently. So, add a lift to a truck, your wear rate increase by a huge amount and your prop dies quicker. Do lots of off-raoding with the axle at funny angles and it'll wear quicker.
A Cardon type joint, featuring two cunningly linked UJ joints in the common housing will halve the angle each UJ works at, at the specific end and accordingly reduce the rate of wear on each. Upshot- the whole things lasts longer.
There is a misconception that a 'wide yoke' prop does the same thing. It doesn't. The UJ is still working a the same angle, the rate of wear is unchanged compared to a smaller yoke UJ. Where Wide yolks do win out is where extreme angles of use are required. They can operate through a larger angle of turn without binding (which can be a really cool way of grenading a yoke!). They can also be stronger under high loads.
HTH
Cheers
8)
Eeyore
--- End quote ---
a squirt of grease every month will reduce the wear a million fold, so there :lol:
Eeyore:
--- Quote from: "mark.yellow.series.3" ---
a squirt of grease every month will reduce the wear a million fold, so there :lol:
--- End quote ---
Top tip!
With proper care and use a UJ should last thousands of miles. Before going Cardan on my wagon I shredded a UJ in 600 miles - with grease!
With proper care though, my current, cardan job, has passed the 20k point. 8)
Cheers
8)
Eeyore
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