This is a top - notch spindle bearing designed specifically for a 3/8 - inch kingpin bolt. It features an inner diameter of 3/8 inches, ensuring a precise fit and smooth operation.

To use this bearing, first make sure the 3/8 - inch kingpin bolt is clean and free of debris. Then carefully slide the bearing onto the bolt. During use, avoid applying excessive force that could damage the bearing. For maintenance, regularly check the bearing for any signs of wear or damage. If you notice any issues, replace the bearing promptly. Keep it in a dry and clean place when not in use to prevent rust and corrosion.