(4) MR18307 LLU/LLB Bearings, Enduro Brand ABEC5 CN 18mm x 30mm x 7mm. These are brand new bearings coming from factory cases as seen in the photos.

One side is marked LLU and the other side is marked LLB.

This ABEC-5 bearing features deep-groove design races, with Grade 10 balls, dual-lip, labyrinth, full-contact LLU seals facing outwards to withstand daily abuse of use and the elements, and lighter-contact LLB seals facing inwards to contain the 90% fill Mobil XHP 222 high-pressure water-proof synthetic grease. CN clearance specification is best for looser press-fit bearing bores.

A radial bearing generally used as a hub bearing, as a bottom bracket bearing for some older square taper BBs, and can be used as a pivot bearing though the MAX-type version of this bearing is better suited for suspension use. Quite often this bearing replaces bearings marked 6903 in front hubs from DT Swiss, Giant and Bontrager, though the ID of this bearing is 1mm larger than standard 6903.

Static load - 438lbf / 1.94kN Weight – 15.1g


You will receive a package containing FOUR (4) bearings shipped FREE to addresses in the US.


Very Important Note Regarding FREE Shipping:

I have thousands of bearings. This free shipping offer is good for small orders only. If you own a shop and would like to purchase more in bulk, please contact me first. I will give you a discount on shipping.