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27th November 2015, 08:33 PM
#41
Advanced
It's funny how much emphasis is put on on rated D shackles. I wonder what the sheer rating on a tow ball is or if there is even a standard?
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27th November 2015 08:33 PM
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27th November 2015, 08:59 PM
#42
I dont believe their is one. As they are designed for load stress. Not sheer...
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27th November 2015, 10:39 PM
#43
I am he, fear me
Originally Posted by
ablast
It's funny how much emphasis is put on on rated D shackles. I wonder what the sheer rating on a tow ball is or if there is even a standard?
Yes there is, specifically A.S. 4177
Towballs are required to pass sheer testing as follows
3.1.4.4 Test Procedure for 50mm Coupling Balls
The test coupling ball shall be attached to the test fixture representing the towbar tongue or lug according to the manufacturers instructions and a longitudinal static force of 66 kN applied through a correctly adjusted coupling body of sufficient capacity.
NOTE: This testing force in kN is 2.27 t x g x 3 test load factor
Bottom line is that to meet ADR's a 50mm Towball cannot deform or sheer below 66kN
Dolphins are so smart that within a few weeks of captivity, they can train people to stand on the very edge of the pool and throw them fish.
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The Following 4 Users Say Thank You to the evil twin For This Useful Post:
Bigcol (28th November 2015), mudski (28th November 2015), Playmoney08 (4th January 2016), rusty00 (1st December 2015)
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16th June 2017, 07:16 AM
#44
Moderator
I will just leave this here
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Its a Nissan! =====> Its a Keeper!! ....... Got a TD42 in it BONUS!!
....... I'm a lucky bugger! I've got 2 of em!
Check out my Toy -->
MudRunnerTD's GQ From the Ground Up
Originally Posted by
Rogue Dung Beetle
Wish it was Nissan though, Toyotas just can't keep up with the Pootrol pace.
The only good thing about an 80 series is..... the front end?? Wrong!!, the Engine?? Wrong!! the Full Time 4WD system?? Wrong!! Its the NissanPatrol.com.au stubby holder fitted over the transfer lever.
WARNING: Towballs used for recoveries can, and do kill people and damage property.
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