| Outer Ring Type | Flat |
| Rolling Element Material | Steel |
| Outer Ring | With Outer Ring |
| Outer Ring Type | Flat |
| Revolution Frequency(rpm) | 9000 |
| Specifications/Environment | Standard |
| Inner/Outer Ring Material | Steel |
| Format symbol | HMK |
| Specifications/Environment | Standard |
| B | 18 |
What Are ABEC Ratings? | AST Bearings
There are five classes, going from widest tolerances to tightest: 1, 3, 5, 7, and 9. Higher ABEC classes provide better precision, efficiency, and greater speed
Bearing Tolerances and Precision Levels | AST Bearings
ABMA standard 20 defines 5 classes: ABEC 1, ABEC 3, ABEC 5, ABEC 7, and ABEC 9. Instrument series ball bearings are defined in standards 12.1 and 12.2
Abec vs. Skate Rated™ - Support - Bones Bearings
The answer is that "Bones Bearings are Skate Rated™ not ABEC rated." Bones® ... The ABEC rating system includes grades 1,3,5,7, and 9. The higher the
Levels of Precision - Choose Wisely: How Fast Your Bearings
Aug 24, 2015 - ABEC includes five tolerances classes: 1, 3, 5, 7, and 9 with 1 being the widest and 9 the tightest. Thus, bearings with a higher ABEC rating
The ABEC Myth | TransWorld SKATEboarding
Jul 13, 2002 - “It's silly that ABEC ratings are what skaters are looking at,” he says. “An ABEC 1 or 3 is all you really need on a skateboard. In skateboarding
Ball Bearings ABEC Standard Tolerances Data - Engineers
A ball bearing is a type of rolling-element bearing that uses balls to maintain the separation between the bearing races. ... The purpose of a ball bearing is to reduce rotational friction and support radial and axial loads. ... The ABEC scale is an industry accepted standard for the
ABEC scale - Wikipedia
The ABEC scale is an industry accepted standard for the tolerances of a ball bearing. ... Bearings not conforming to at least ABEC 1 cannot be classified as precision bearings as their tolerances are too loose. The scale also works as a guide