Wheel Bearings

MR15248
Inner x Outer x Depth (mm): 15 x 24 x 8.5
Used On: Bicycle Freehub

MR15258
Inner x Outer x Depth (mm): 15 x 25.3 x 8
Used On: Fulcrum Hubs 

Dual Row Bearing (W meaning WIDE)

Inner x Outer x Depth (mm): 15 x 24 x 10mm
Used on: Wheels (White Industries & Shimano M/Spline Freehub)

Inner x Outer x Depth (mm): 10 x 26 x 8
Used On: Wheels (Easton, FSA, Stans, Bontrager, Mavic, DT Swiss, On-One)

Inner x Outer x Depth (mm): 9 x 24 x 7
Used On: Wheels (Mavic)

Inner x Outer x Depth (mm): 10 x 19 x 7mm
Used on: Wheels

Inner x Outer x Depth (mm): 12 x 21 x 7
Used On: Wheels

Inner x Outer x Depth (mm): 12 x 18 x 4
Used On: Wheels

Inner x Outer x Depth (mm): 15 x 21 x 4
Used On: Wheels (Reynolds, DT Swiss)

Inner Diameter x Outer Diameter x Depth: 12 x 21 x 5mm
Used on: Wheels
Brand: NTN

Seals: LLU contact seals are a closer fitting seal to rotating parts, and thus provide better protection against dirt and moisture ingress. Use where bearing longevity is more important and/or you frequently use your bike in harsh conditions. If racing or chasing watts is your priority then our non-contacting low friction seal version of this bearing (LLB Seals) might be more appropriate.