633ZZ Bearing 3x13x5mm - Shielded - Miniature 886 Type Bearing 6312ZZ is self lubricated bearing

6312ZZ is self lubricated bearing (bearing is already greased)

🟢 Material: Si3N4 ceramic (silicon nitride) - races and balls

🟢 Double rubber seals for dust and moisture protection

Fits Shimano Bike Components Ultegra FH 6600 Front HUB Bicycle

633ZZ Bearing 3x13x5mm - Shielded - Miniature 886 Type Bearing 6312ZZ is self lubricated bearing633ZZ Chrome Steel Ball Bearing 3mm x 13mm x 5mm 633ZZ Ball Bearing, Made from high strength chrome steel for durability and performance, each Comes with double metal shields (ZZ) to keep out dust and dirt, additionally, these bearings come pre lubricated with grease for smooth operation 633ZZ Ball Bearing Deep Groove Ball Bearing Material: Chrome Steel Closures: Metal shielded Size: 3mm x 13mm x 5mm Inner Diameter: 3mm Outer Diameter: 13mm Width: 5mm