J&T Bearing Co. This is an Endurance bearing kit intended for the Tekno SCT410 2.0 chassis. These versatile bearings suit all vehicle types, making them ideal for both enthusiasts seeking an upgrade from standard kit bearings and budget-conscious racing enthusiasts. They feature polished steel balls, a "J" type ball retainer, grease filling, an Abec 5 rating, and high-quality rubber seals.