Help needed to identify trailer bearings

Submitted: Tuesday, Jul 20, 2010 at 19:26
ThreadID: 80194 Views:4416 Replies:1 FollowUps:10
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Hi All, looking to replace my current 45mm square axle with a new similar axle. My current one has Slimline bearings (tapered ford bearings) but i have an option that are supposed to be tougher for off road, called parallel bearings.
Are these just parallel instead of tapered and one piece instead of two pieces?? thanks in advance.. Michael
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Reply By: Member - Nick (TAS) - Tuesday, Jul 20, 2010 at 19:44

Tuesday, Jul 20, 2010 at 19:44
IIRC, instead of one big and one small bearing, both bearings are the same larger size.Still cup and cone design.
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Follow Up By: Michael ( Moss Vale NSW) - Tuesday, Jul 20, 2010 at 19:47

Tuesday, Jul 20, 2010 at 19:47
Thanks Nick, OK, that makes sense... regards Michael
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Follow Up By: Member - Phil G (SA) - Tuesday, Jul 20, 2010 at 20:32

Tuesday, Jul 20, 2010 at 20:32
Gday Michael,
The Tvan has parallel bearings and they are exactly as Nick has described - both bearings are the large (inner) Ford bearings.
Cheers
Phil
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Follow Up By: Michael ( Moss Vale NSW) - Tuesday, Jul 20, 2010 at 21:54

Tuesday, Jul 20, 2010 at 21:54
Gday Phil,
Hows things, I bent my axle, springs broke all the 'U' bolts and everything including the electric brakes, they also need replacing so i want to make sure i optimise all the parts.... $1200,,,, not a cheap exercise for what it is... Michael
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Follow Up By: Member No 1- Wednesday, Jul 21, 2010 at 08:31

Wednesday, Jul 21, 2010 at 08:31
so its just a play on words?...they are both still taper roller bearings??
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Follow Up By: Member - Johny boy (NSW) - Wednesday, Jul 21, 2010 at 09:56

Wednesday, Jul 21, 2010 at 09:56
member no 1,
they can carry a little more load and I think its a great idea to have the same bearings on both sides if one fails it can fit anywhere ,so what would you rename them as ??
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Follow Up By: Member No 1- Wednesday, Jul 21, 2010 at 10:12

Wednesday, Jul 21, 2010 at 10:12
parallel? or taper.....?
what are parallel bearings...never heard of such a thing...heard of roller, rtaper roller, deep grove, needle bearing, angular contact, double row this and that etc etc

is it a standard roller type or is it two identical TAPER roller bearings on each hub?..if its taper roller why call them parallel bearings...a play on words calling them parallel

they are Taper Roller bearings...nothing else if that is the case
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Follow Up By: Member - Ed C (QLD) - Wednesday, Jul 21, 2010 at 10:36

Wednesday, Jul 21, 2010 at 10:36
MN1, they are 2 identical tapered roller bearings (cup & cone) in each hub...

Most common size is the standard Ford (slimline) inner, though I have owned a trailer which had the (smaller shaft diameter) Holden inners, same configuration...

I guess the 'play on words' comes about from the fact that the stub is machined to a single diameter (parallel) to accommodate the 2 identical bearings, hence the commonly used term "parallel bearings"....

clear as mud ???

Catch ya later... Ed C

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Follow Up By: Member - Johny boy (NSW) - Wednesday, Jul 21, 2010 at 10:43

Wednesday, Jul 21, 2010 at 10:43
There not describing /identifiying the type of bearing used in saying parallel they are describing the set up on the axle,the type of bearing is up to who ever has desighned the setup,when speaking to blokes in the game they all seem to know what it means ??? Hmm?
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Follow Up By: Member No 1- Wednesday, Jul 21, 2010 at 16:34

Wednesday, Jul 21, 2010 at 16:34
clear as mud Ed...

even got a SA member calling them parallel....gee i thought we only had smart people in here...lol...sorry phil...lol

is it any wonder why I couldnt figure out how they worked when you had axial load applied....now I know..there is not such a thing.....they are really tapered roller bearings!!!! and not parallel bearings.

who (probably an accountant or pollitician) started/invented this stupid term to describe this tandem bearing setup.....its not correct....doesnt matter if one is smaller than the other or not...they are not "parallel bearings"

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Follow Up By: Michael ( Moss Vale NSW) - Wednesday, Jul 21, 2010 at 19:05

Wednesday, Jul 21, 2010 at 19:05
Member NO 1... The same thing occured to me, how the axial load is applied. Now we have established they are Tapered, it makes sense!!!

Thanks everyone!! Michael
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