Rush Tin Bearings ABEC5 w/Spacers Black Onesize These Rush Tins ABEC-5 W/Spacers Skateboard Bearings offer a smooth ride and long-lasting durability. They are rated ABEC-5 on a scale of 1-9. A higher ABEC rating means it has more precision and tighter tolerance but does not mean it spins faster. Bearings are sold in sets of 8 unless noted otherwise.