One Quality Lawn Mower ball Bearing, that replaces M63810 and M88251 part numbers, popular size that could be used in many lawn mower applications, Bearings are made of Chrome Steel, bearing has built-in rubber seals to protect the bearing from dust or any possible contamination, and are pre-lubricated with grease.

• Deep Groove Ball Bearing
• Material: Chrome Steel
• Closures: Rubber Sealed
• Lubrication: Self Lubricated (Grease)
• Quantity: One Bearing
  
• Replaces: M63810 and M88251 part numbers