hahaha. no.
On the ABEC scale 7 is better but 5 is not the lowest. The scale numbers are 1, 3, 5, 7, and 9, so a five would still be a good choice.
yes
Bearings are classified on an Abec system 1,3,5,7 and top being 9. Bones bearings are recognized as being the best.
it is an Australian type of bearing and is equivalent to abec9 bearings.Read more: What_are_k1_scooter_bearings
I don't doubt the quality of bones but as for abec9, abec7 etc, most of them are not abec9, abec7... Abec 9 bearings are used in critical aerospace and instrument applications. There are not many bearing manufacturers in the world that can make Abec 9 as most do not have the equipment and yet you see Abec 9 bearings readily available in skate shops at low prices. A real Abec 9 bearing would cost 30 to 40 US Dollars or more. I leave you to decide!! Have a look at http://www.smbbearings.com/Framesets/Skate_Frame.htm for useful info about skate bearings. #1 bones Swiss #2 bones reds #3 speed demon #4 blind #5 abec 9 #6 abec 7 #7 abec 5 #8 abec 3 #9 abec 1 #10 jc (walmart sold skateboards) *bones ceramics are much faster than bones Swiss but they can shatter*
no. you can get up to abec 13s and bearings like bones ceramics are really fast.
abec ratings are just a marketing scam. all bearings are pretty much the same its just the quality that's different i would go for a well known skate brand if buying some
Bearings are very different from the 50's version. Those bearings came off rollerskates. Now you would use a different bearing for street riding than you would for racing. The bearings are rated by a system called ABEC ratings: 1,3,5,7 & 9. It was originally developed to rate the bearings in machines, not on skateboards. The ABEC rating rates the precision of a bearing. Most skateboarders use a 3, 5 or 7 ABEC. Most are metal but some riders prefer ceramic bearings. Your local shop will have most of the information you need. This is a good site to find information about bearings: http://www.skateboardballbearings.com Heidi www.SPAUSA.org
I would say probably any ABEC 3 rated STEEL (not ceramic) bearing with a removable shield for routine servicing (cleaning and lubricating). From what I've read, steel bearings made in America have tested better as a group than German, Swiss, or especially Chinese bearings, but of course there will always be exceptions to this. Abec 3's can take more dirt before you slow them down. A higher ABEC-rated bearing with lower tolerances will get gunked up because there is less space in the bearing. An ABEC 3 that gets a little dirty can stay near optimum and will outroll a gunked ABEC 5, 7, or 9. From what I understand, the quality of polish on the steel, the depth of the raceway, and the ability for the bearings to move to lateral weight transfer are far more important than ABEC rating anyway. It is really hard to find these types of specifications, however, so unfortunately, finding a bearing you love is just trial and error. It is also important to note that it is not true that if you pay more, the bearing will perform better. My advice is to look for a serviceable ABEC 3 steel bearing that is manufactured in America and doesn't cost more that $25 for a set of 16. If you don't like it, buy a different ABEC 3 manufactured in America. You would be terribly unlucky if one of them wasn't a very nice set of bearings.
The ABEC scale is a system used throughout the manufacturing industry for rating the manufacturing tolerances of precision bearings, developed by the Annular Bearing Engineering Committee (ABEC) of the American Bearing Manufacturers Association (ABMA). Bearings are rated using an odd number between 1 and 9. The higher the number, the greater the manufactured precision of the bearing. Bearings manufactured within tighter tolerance ranges provide greater accuracy of shaft rotation and contribute to higher speed capability. However, the ABEC rating does not specify many other critical factors, such as smoothness of the rolling contact surfaces, ball precision, and material quality[1].But yea keep em cleen and dry and lubricated and if they are really nice you should take them apart and cleen them one in a while.
they are rather basic. abec is a well known brand for mediocre but usable berings. the rating system is a way of categorizing the quality of their barings out of the manufacturing plant and the quality of the grease used in them. the scale is 3,5,7,9,11 but 3,5,7 are the most common and 5 is the middle of the road for that. i ride abec 9's and I could never get anything lower because I would feel slow