Abec 9 Bearings

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ABEC scale - WikipediaThe ABEC scale is an industry accepted standard for the tolerances of a ball bearing.  There are five classes from largest to smallest tolerances: 1, 3, 5, 7, 9Abec 9 Skateboard Bearings | Lily BearingAbec-9 has been the highest grade in bearing industry. The Abec 9 rollerblade bearing can be applied to any harsh conditions with high speed requirements
What an ABEC Rating Tells You About Skateboard BearingsJul 22, 2018 - Skateboard bearings often have an ABEC rating that indicates the level of  ABEC 9 and higher bearings would be ridiculous to use in a The ABEC Myth | TransWorld SKATEboardingJul 13, 2002 - The ABEC rating system uses odd numbers, ranging from 1 to 9. The higher the number, the tighter the tolerance of the bearing, and thus, the Abec vs. Skate Rated™ - Support - Bones BearingsIn an application like this, an ABEC - 7 or 9 bearing rating may be appropriate. However, a skateboard with 54mm wheels turning 20,000 RPM will be traveling Bullseye Bearings ABEC 9 Skateboard  The Bullseye ABEC 9 Bearing. Bearings are circular pieces of steel with flat sides that contain eight lubricated balls, their purpose is to keep wheels running 
 

China Bearing 608RS ABEC 7 Online Skate Bearing

13,500 N 16.5
1 mm 0.191 kg

Flanged Miniature Deep Groove Ball Bearings Mf117zz, Mf137zz, F687zz, F697zz, F607zz, F627zz ABEC-1

1046 mm 1092 mm
NSK 190 r/min

High Quality Flanged Miniature Ball Bearings F685zz, F695zz, F605zz, F625zz, F635zz ABEC-1

59.6 kN 101.803 mm
SNW 3044x7.7/8 725 r/min

ABEC-7 Carbon Material 608zz Ball Bearing for Sliding Window Door Roller

1120x1580x462 ISO
462 mm 1120