The UDI RC 12x8x3.5mm Driveshaft Ball Bearings are an essential replacement part, ensuring optimal performance for your remote-controlled car! These bearings are intended for the inner wheel carriers, as well as the front side of the spur gear on the center driveshaft. Meticulously crafted with precision and durability, this ball bearing guarantees smooth rotation and reduced friction, enhancing your vehicle's efficiency. Easily replace your worn-out bearings with these reliable 12x8x3.5mm bearings.