This is a pack of two ceramic 6x10x3mm dual sealed "Speed" steering post bearings. ProTek R/C "Speed" bearings are high performance ceramic ball bearings designed for the R/C racing enthusiast.
Our ProTek Ceramic Bearings are a hybrid type, featuring Chrome Steel inner and outer races, with Si3N4 silicone nitride ceramic balls. Ceramic bearings have many advantages over standard steel bearings, such as decreased weight, higher RPM capabilities, increased corrosion and wear resistance, as well as reduced friction and vibration. So next time you purchase bearings, when you ask yourself "Why should I buy Ceramic?" You should be asking yourself "Why shouldn't I?" Advantages of Ceramic: