The MTD 68702220 blade hub is a genuine OEM replacement part designed for specific MTD lawn mowers. This essential component features a 25mm (1 inch) inner diameter, ensuring a precise fit for the mower spindle. It securely mounts the cutting blade, facilitating efficient and safe operation. Constructed for durability, this blade hub is crucial for maintaining the performance and longevity of your MTD outdoor power equipment. Always refer to your equipment's parts manual for exact fitment confirmation.