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The bushes are a Mackay Rubber product, Part No S19, BJ Bearings were able to order them for me at a cost of $20 each (ouch)
[ame]http://www.mackayrubber.com.au/pdf/flex_I_pages/flexible_Bearings.pdf[/ame]
Back on the lock nuts and washers, just in case it helps anyone, the bearing shop had the lock washers under part no AW09 (thats a zero) which looks like an NTN part at a cost of $3.54 per unit. Looks like the lock nut is part No AN09.
Looks like in Timken the equivalent is N 09 and W 09
Timken Part Number N 09-W 09, Inch Accessories - Locknut and Lockwasher On The Timken Company
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Looks like the alternative bush listed in the parts scale is a Motherson Elastomer Pty. Ltd product, Part No E20822, Pg 35
After removing 50 years of rust, that is the part no stamped onto the bush on my trailer.
[ame]http://www.motherson.com.au/UserFiles/File/pdf/Silentbloc-Catalogue.pdf[/ame]
