15x40x12mm Non-Standard Ball Bearing 15mm x 40mm x 12mm15x40x12mm Non Standard Ball Bearing Sealed Special Size 15 x 40 x 12mm This non standard deep groove ball bearing measures 15mm x 40mm x 12mm, offering a unique fit where standard bearings fall short. Its sealed to keep out dirt and moisture, making it a solid choice for specialty machinery, custom projects, or hard to source replacement parts. Inner diameter: 15mm Outer diameter: 40mm Width: 12mm Sealed design for protection and cleaner operation