The 4 pack lawn mower wheel bearings you're looking for are designed to ensure smooth and durable operation, especially in outdoor environments. Each bearing has a diameter of 12.7mm and a length of 28.6mm, providing precise fit and stability. Made of strong metal, they are not only durable but also easy to install. These ball bearings are specifically made for tractor wheels and are guaranteed to last, even in the most demanding conditions. With a smooth yet sturdy design, they offer reliable outdoor use, allowing for precise steering and control when mowing.