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Bror Svensson

Bror Svensson

Gold Member
Josh Young said:
river wheels come with bearings now. ABEC 11

10687404_734803173270980_3994724976508771858_o.jpg


you will be able to purchase just the bearings in the near future
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Dope! But i thought the abec scale only went to 9?
 
Aaron

Aaron

Silver Member
Bror Svensson said:
no
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Yeah.
It's actually the age of the machine used to make the bearings. They use lasers to make the balls, over the life of a laser it'll become less and less accurate. ABEC 9 is a brand new machine, ABEC 7 is around 9 months old, ABEC 5 is 2 years, ABEC 3 is 3-4 years and ABEC 1 is dinosaur era machines making balls for bearings.
 
Hcc

Hcc

Silver Member
Chrispy said:
If mckeen and all the pre 2010 guys could rock a bolted foldy and shred it, I don't think slanted edges will be impossible to ride.
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You never had a choice back then though lol I rode a few bolted Pros and JD Bugs and they sucked compared to decks nowadays.
 
Aaron

Aaron

Silver Member
Yeah, you used to bolt them on to the side of the Pro Model.
Alex Steadman sold them through SR 7 years ago now.
 
GRAYDONSHEDSSTREET

GRAYDONSHEDSSTREET

Silver Member
Actually the age is not at all true.
ABEC scale

  • tolerances of a ball bearing. It was developed by the Annular Bearing Engineering Committee (ABEC) of the American Bearing Manufacturers Association (ABMA). There are five classes from largest to smallest tolerances: 1, 3, 5, 7, and 9. The higher ABEC classes provide better precision,efficiency,[citation needed] and greater speed capabilities, but do not necessarily make the components spin faster.[1] The ABEC rating does not specify many other critical factors, such as smoothness of the rolling contact surfaces, ball precision or quality/type of steel used.

    The bearing material is not specified in the ABEC grades. Bearings not conforming to at least ABEC 1 can not be classified as precision bearings as their tolerances are too loose.

    The scale is designed to allow a user to make an informed decision about the type of bearing they are purchasing. High rated bearings are intended for precision applications like aircraft instruments or surgical equipment. Lower grades are intended for the vast majority of applications such as vehicles, mechanical hobbies, skates, skateboards, fishing reels andindustrial machinery. High ABEC rated bearings allow optimal performance of critical applications requiring very high RPM and smooth operation.

    ISO's equivalent standard is ISO 492.[2][3]

    ABECISO 492
    ABEC 1normal
    class 6X
    ABEC 3class 6
    ABEC 5class 5
    ABEC 7class 4
    ABEC 9class 2
    Actual changes in run-out between different ABEC gradesEdit
    There are a number of factors covered by the ABEC grades. One is the eccentricity (roundness) of the track in the inner ring, which determines run-out. The figures given below show the maximum eccentricity allowable.
    • ABEC 1: 0.0075 mm (0.000295")
    • ABEC 3: 0.0050 mm (0.000197")
    • ABEC 5: 0.0035 mm (0.000138")
    • ABEC 7: 0.0025 mm (0.000098")
    • ABEC 9: 0.0012 mm (0.000047")
    ReferencesEdit
 
addicted_to_Addict

addicted_to_Addict

Steel Member
ChrisPollak. said:
go look at the new addict website, visit the shredders page. notice how mathias holst and tobias mayer are flow.... i guess cause they're younger than all the other riders, but skill wise they've definetly got what it takes. its weird i thought they would be pro lol.
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Tobias Mayer is probably the second or third best of the Team.
And Michael Cajas isn't on the page.
 
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