ASRA - Australian Skateboard Racing Association

otang cores?!?

what the hell is with otang having aluminium cores....they claim that it will improve the wheel so much..but i reckon that it will encourage friction and over heating of bearings

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Premium MemberPermalink Reply by Kelly Carter on April 22, 2011 at 22:08
It encourages radness and shredding, you should get some
Permalink Reply by Billy Bott on April 22, 2011 at 22:11
they just seem like another way of making money for otang

Kelly Carter said:
It encourages radness and shredding, you should get some

Premium MemberPermalink Reply by Nick Lonergan on April 22, 2011 at 22:21
according to cooper , the friction heats up the rest of the thane , making it more grippy and the weight is distributed more evenly.
Permalink Reply by Billy Bott on April 22, 2011 at 22:22
yeah but what about the bearing? wouldnt that make the bearing heat up more, as opposed to plastic cores?
Permalink Reply by Robbo on April 22, 2011 at 22:29
Why on earth would a aluminum core encourage friction? That make no sense.

Premium MemberPermalink Reply by Nick Lonergan on April 22, 2011 at 22:35

come to think of it that does make no sense. damn cooper

 


Premium MemberPermalink Reply by Dani on April 22, 2011 at 22:37
O no, a business trying to find other ways to make money... How dare they!
Permalink Reply by Billy Bott on April 22, 2011 at 22:42
doesnt metal generate more heat than plastic?

Robbo said:
Why on earth would a aluminum core encourage friction? That make no sense.
Permalink Reply by Robbo on April 22, 2011 at 22:45

Its not how hot it gets that matters its how out of shape a core gets that causes friction. A metal core does not heat up because the bearing does no move in it so how would you get friction?

 

As the wheel wears and heats up with plastic core the core is prone to fouling as plasctic has very little resistance to heat. this means it bends out of shape and becomes soft and weak making the bearing seat incorrect and therefore losing support for the bearing. This does not happen with a metal core as it will always stay exactly true. When the wheel heats up the core stays the same so instead of getting a saggy soft lip the wheel stays firm and is properly supported so you get more grip. You also should get a bit more kinetic energy in the wheel.

 

I'm sure in the end none of you guys notice any difference. And billy I don't quite understand what you are saying about making more money for otang. Metal core wheels have been around for years, they are not a new invention, they just cost a lot to make

 

 

 

 

Permalink Reply by Jack on April 22, 2011 at 23:28

Soy luv yo mutha wheels run metal cores as well as plastic. 

This is not new technology, merely otang expanding on their already wide variety of wheels. If you cant understand it, research a bit rather than post your misinformed ideas here.


Premium MemberPermalink Reply by Matthys on April 22, 2011 at 23:52

plastic wheels conform slightly to the outer radius of the bearing

a metal core cannot do this, so there will in theory ALWAYS be slop in the bearing fit, reducing precision and leading to a wheel that performs at a lower level than promised

of course this could be a load of crap, but unless you can make a aluminium core with an interference fit which allows the steel bearing to hold onto the core through friction, there is no point in the core at all....

and to my knowldege, aluminium doesnt flex too much,

my two cents

could be completely wrong...

Permalink Reply by Robbo on April 23, 2011 at 0:19
A bearing is a precision size, unlike a plastic core. A metal core is also a precision size which is why it nearly requires a wooden block to bang them in they are so tight. Unlike every plastic core wheel there is no slop in a metal core.

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