 Amphetamine Abec 5 Bearings From Amphetamine's classic series of ABEC 3, ABEC 5, and ABEC 7 bearings right through to our top-of-the-line Ceramix Gold, all of their bearings are designed and manufactured to live up to the high demands of all aspects of skateboarding and longboarding.
Whether you're into street skating, freeride longboarding,hitting ramps and bowls, or you just love speeding downhill on a longboard, AMPHETAMINE BEARINGS has the right bearing for your skating needs.
Amphetamine Bearings Specifications:
- Thermally applied coatings enhance corosion resistance
- Grade 10 hardened steel balls for higher rockwell rating
- Fritcion-free rubber shields fast and easy to maintain
- Pre-lubricated with Amphetamine synthetic Speed Oil
- Amphetamine's number-one selling bearing, great for street and park.
What is ABEC?
The ABEC scale is an industry accepted standard for the 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 and industrial machinery. High ABEC rated bearings allow optimal performance of critical applications requiring very high RPM and smooth operation.
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