MR18307 Sealed Cartridge Bearing For Your Bike Hubs 18mm Inner By 30mm Outer By 7mm Width With Orange And Black LBlu Seals Two Pack For DT Swiss Bontrager And Giant Hubs

MR18307 2-Pack Sealed Cartridge Bearing 18x30x7 Hubs
✔️ ID 18mm, OD 30mm, width 7mm; rubber seal, grease, 2-pack

These sealed cartridge bearings are designed for bicycle hubs, especially DT Swiss, Bontrager, and Giant models. They feature LBlu seals with orange on one side and black on the other to help keep dirt out and grease in.

✅ Bore Dia (d): 18 mm
✅ Outer Dia (D): 30 mm
✅ Width (B): 7 mm
✅ Closures: Rubber Seal; Lubrication: Grease
✅ Ball Material: Ceramic Si3N4; Material: Bearing Steel; Hardness: 58HRC; Structure: Deep Groove; ABEC-3

💡 What is a sealed cartridge bearing used for in bicycle hubs?

Sealed cartridge bearings are handy in bike hubs and other rotating parts to keep lubrication in and grime out. - Bike hubs and other rotating shafts
- Handy for keeping lubrication in and contaminants out
- Ceramic ball options for longevity
- Fits common 18x30x7 mm sizes used in hub designs