Product Details

Miniature Ball Bearings 681zz, 682zz, 683zz, 684zz, 685zz, 686zz, 687zz, 688zz, 689zz ABEC-1, ABEC-3

Model Number 681zz,
Min.Order Quantity 1 pcs
Price Negotiable

Product Features

H2125 mm
A66 mm
NM16
S22.2 mm
C43.55 kN
GM6x1
Recommended tightening torque for set screw16.8 Nm
Designation of bearingUC211-32G2L3
H63.5 mm
H114 mm

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 

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 

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 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 

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 

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 

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
All Products Contact Now