This is a set of eight (8) bearings with integral flanged half-spacers. The 6-Ball Tektons feature a breakthrough, self-aligning design that corrects for flaws in bearing seat levelness, bearing seat spacing, axle diameter and axle straightness.The 6-Ball Tekton is constructed with fewer, larger balls than ordinary 608Z bearings. This means less ball-raceway surface contact area, less friction, quicker acceleration, higher speed, and longer life.
More than two years in development, Seismic Tekton bearings feature wide, flat contact surfaces at the ends of integrated, custom-machined half-spacers. The broad flanges square up, co-align and self-stabilize inside your wheels - correcting for flaws in bearing seat levelness, bearing seat spacing, axle diameter and axle straightness.The Tektons literally block themselves from sitting or rocking out of alignment, so they stay straighter than any other bearing system ever. Your wheels roll faster with better control, while the bearings last longer and stay quieter. Other features include: advanced 6-ball construction,, nylon retainers, black outer casing, removable rubber-coated steel seals with printed graphic, and top-shelf Japanese Kyodo grease.The inner race is stepped between the bearing and the flange to save weight. On the side opposite the flange, the inner race extends 0.5mm to form a thin integrated washer. No bearing spacers, axle washers, or World Record budgets required!