Enduro ABEC3 6805 Wheel Bearing 25x37x7 (Single)

##Enduro ABEC3 6805 Wheel Bearing 25x37x7 (Single) The Enduro ABEC 3 6805 Cartridge Bearing 25x37x7 is labyrinth sealed with two NBR 70; low-contact; low-friction seals; which ride in a groove machined into the bearing. High precision; Grade 10 chromium steel balls are within 10/1;000;000? round; twice as round as the industry standard. These precision balls ride in a 52100 high carbon chromium alloy race; hardened to R-62 to make them extremely tough and durable. Mirror finish polishing of the races creates ABEC-3 precision and noiseless movement.