Carver Built-In bearings simplify your setup by integrating the spacer and speed rings directly into the bearing assembly. That means you drop them onto the axle, tighten the nut fully, and ride — no fiddling with loose spacers or worrying about over-tightening. The Abec 7 rating delivers smooth, fast, consistent roll speed.
Available as a single set of 8 (one complete setup) or a 12-pack display box for shops.