What do the bearing numbers mean?
The first digit indicates the width or height series (dimensions B, T or H). The second digit identifies the diameter series (dimension D). The last two digits of the basic designation identify the size code of the bearing bore. The size code multiplied by 5 gives the bore diameter (d) in mm.
What’s the fastest ABEC bearings?
Specifically, thanks to its smaller runout and axial play, an ABEC 7 bearing will perform better and last longer in high speed applications, than an ABEC 3 rated bearing. So, if you need a super precise, long-lasting bearing, ABEC 7 is probably the bearing for you.
Is ABEC 7 or 9 better?
The ABEC rating system includes grades 1,3,5,7, and 9. The higher the ABEC rating, the tighter the tolerances are, making the bearing a more precision part. High precision and small tolerances are required for bearings to function at very high RPM, in products like high speed routers that must spin at 20 to 30,000 RPM.
Does ABEC 11 exist?
ABEC from a precision standpoint refers to the Annular Bearing Engineering Committee (ABEC) of the American Bearing Manufacturers Association (ABMA). ABEC precision levels do indeed stop at level 9 (there is no ABEC 11 precision level).
Do ABEC 11 bearings exist?
Precision 608 RS ABEC 11 Bearings for Scooters,Longboards and Skateboards (Pack of 10 PCS) (Black) Amazon’s Choice highlights highly rated, well-priced products available to ship immediately.
What ABEC is best?
Which is better ZZ or 2RS bearing?
Re: Bearings types difference The 2RS are sealed for life bearings i.e. the grease within the bearing cannot get out or contaminants get into the bearing and damage it. The ZZ are just a metal shield to stop larger contaminants damaging the bearing.
Are Bones Reds ABEC 7?
We are often asked, “What ABEC rating are your bearings?” The answer is that “Bones Bearings are Skate Rated™ not ABEC rated.” Bones® Bearings are the skate industry leader and favorite choice of professional skaters, and have been since their development in 1981.
What kind of bearings do pro skaters use?
Best Overall: BONES SWISS The reason for that is that Bones have been making skateboard bearings since 1981 and are the leader in the industry as well as the brand that is trusted by skaters the world over. Bones Swiss bearings are engineered to be fast and durable.