dumb question about micro bearings, normal bearings and frames

dumb question about micro bearings, normal bearings and frames

Post by cliv » Sat, 02 Aug 2003 07:26:54


Ok here's a dumb question. I understand that some wheels take micro
bearings (like the ones on my rb lightning 05) and others take normal
bearings. So i can't use micro bearing wheels with normal bearings
etc.

BUT, does this have anything to do with my skate frame ? I mean can i
just put whatever wheels + bearings on any frame. E.g can i get some
normal wheels + normal bearings and put them on my rb lightning frame
which currently has micro bearings and micro bearing wheels.

TIA
clive

 
 
 

dumb question about micro bearings, normal bearings and frames

Post by Bob Cardon » Sat, 02 Aug 2003 08:13:45

Quote:

>Ok here's a dumb question. I understand that some wheels take micro
>bearings (like the ones on my rb lightning 05) and others take normal
>bearings. So i can't use micro bearing wheels with normal bearings
>etc.

>BUT, does this have anything to do with my skate frame ? I mean can i
>just put whatever wheels + bearings on any frame. E.g can i get some
>normal wheels + normal bearings and put them on my rb lightning frame
>which currently has micro bearings and micro bearing wheels.

>TIA
>clive

When you switch to regular 608 bearings, which most of the people I
know have done, it is very simple.  You get a set of 608 spacers ( K2
used to send them for free , if your bought a pair of their
microbearing skates.  The spacer is the one that goes between the
bearings inside the wheel and keeps the bearings properly spaced when
you tighten the axle bolt for each wheel.  The 608 and Microbearings
have a different size spacer that will not work on the 608.  Other
than that, everything else is the same. Axles, frame etc...

Any good skate shop should have the spacers.

Bob

 
 
 

dumb question about micro bearings, normal bearings and frames

Post by B Fuhrman » Sat, 02 Aug 2003 11:03:08

"clive"  wrote ...

Quote:
> Ok here's a dumb question. I understand that some wheels take micro
> bearings (like the ones on my rb lightning 05) and others take normal
> bearings. So i can't use micro bearing wheels with normal bearings
> etc.

Since the 608 bearings are larger, you can get a set of spacers that allow
688 (mini) bearings to fit in a wheel designed for 608 bearings.

Quote:
> BUT, does this have anything to do with my skate frame ? I mean can i
> just put whatever wheels + bearings on any frame. E.g can i get some
> normal wheels + normal bearings and put them on my rb lightning frame
> which currently has micro bearings and micro bearing wheels.

The width across the outsides of the bearings is the same.
The axle diameter is the same (8mm).

Since the bearings have different widths, you need new spacers to go with
the new wheels and bearings.  Spacers for 688 bearings are longer than for
608s.

This last caveat only applies to someone who has older skates and wants to
put 688 bearings in it.  Some of the frames have standoffs for the outside
of the bearings that are large enough to rub on the outer race of the 688
bearings.  Racing frames with square pads are a likely culprit.

 
 
 

dumb question about micro bearings, normal bearings and frames

Post by Bob Cardon » Sat, 02 Aug 2003 19:28:09

Which store is closing down?

Bob

Quote:

>While everything that Bob said is correct, it's actually slightly more
>complicated.  Newer and better recreational skates use 8mm axels while
>others use 6mm axels.  If your skates came with micro bearings then you
>probably have 8mm axels.  This makes a difference in the type of spacer that
>you'll need to get in order to use standard 608 bearings.

>What you'll need is called a self-centering spacer and the only skate shop
>in New York that carries them is closing down.  Only stores that sell racing
>skates tend to carry them or even know what they are.  I've attached a
>picture from www.adamsinline.com.  Unfortunately, the more generally
>available 6mm spacers are useless for newer skates.




>> >Ok here's a dumb question. I understand that some wheels take micro
>> >bearings (like the ones on my rb lightning 05) and others take normal
>> >bearings. So i can't use micro bearing wheels with normal bearings
>> >etc.

>> >BUT, does this have anything to do with my skate frame ? I mean can i
>> >just put whatever wheels + bearings on any frame. E.g can i get some
>> >normal wheels + normal bearings and put them on my rb lightning frame
>> >which currently has micro bearings and micro bearing wheels.

>> >TIA
>> >clive
>> When you switch to regular 608 bearings, which most of the people I
>> know have done, it is very simple.  You get a set of 608 spacers ( K2
>> used to send them for free , if your bought a pair of their
>> microbearing skates.  The spacer is the one that goes between the
>> bearings inside the wheel and keeps the bearings properly spaced when
>> you tighten the axle bolt for each wheel.  The 608 and Microbearings
>> have a different size spacer that will not work on the 608.  Other
>> than that, everything else is the same. Axles, frame etc...

>> Any good skate shop should have the spacers.

>> Bob

 
 
 

dumb question about micro bearings, normal bearings and frames

Post by Mike van E » Sat, 02 Aug 2003 19:36:56

Quote:

> Ok here's a dumb question. I understand that some wheels take micro
> bearings (like the ones on my rb lightning 05) and others take normal
> bearings. So i can't use micro bearing wheels with normal bearings
> etc.

> BUT, does this have anything to do with my skate frame ? I mean can i
> just put whatever wheels + bearings on any frame. E.g can i get some
> normal wheels + normal bearings and put them on my rb lightning frame
> which currently has micro bearings and micro bearing wheels.

> TIA
> clive

That's not a dumb question at all!  I've just done exactly that with
my RB Lightning 05s (last year's model).  I've put some Hyper + Grip
84mm wheels with standard 608 bearings, and they fit fine.

Supposedly the Lightnings have a max wheel size of 82 mm, but they'll
take 84mm too.  Only one wheel touches slightly on my left skate, and
might need about a mm filed off one part of the frame.

Sometimes you will have trouble putting micro bearings on a particular
frame since the frame might touch the outer race of the micro bearing
if it was originally made for 608 bearings.  That shouldn't be a
problem for you though, as you want to go the other direction.

Cheers,
Mike.

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