Radial Bottom Bracket Bearing featuring 52100 High-Carbon Chromium alloy races paired with grade 5 Balls with 90% fill, high-pressure, water-proof grease. Designed specifically bicycle applications, the LLU/LLB seal combination on these bearings utilizes a more protective LLU seal facing outward, towards the elements, to reduce contamination from water or dirt, while the lighter-contact (less seal-drag) LLB seal face inward to keep the grease where it belongs.The most common use for this bearing is as a direct replacement bearing for BB30, PF30, BB386 and most other bottom brackets with a 30mm OD spindle.Bearing Code: 6806 (61806)Dimensions: 30mm x 42mm x 7mmABEC: 5Grade: 5Seals: LLU/LLBGrease: Kyodo Yushi PS-2Application: Hubs, Bottom BracketsWeight: 24.63g