Sealed Cartridge Bearing Set 18 X 30 X 7 mm MR18307 RS 5 Pack For Bike Hubs With LBlu Seals Orange And Black Ends Pre Greased Low Friction Drum Ball Bearings For MTB And Road Hubs Built For Fast Riders

Compact Sealed Bearing Set 18x30x7 mm MR18307, 5-Pack
✔️ ID 18 mm, OD 30 mm, width 7 mm; LBlu seals, pre-greased, 5-pack

This sealed cartridge bearing set is designed for bicycle hubs, especially MTB and road setups, delivering low-friction rotation and reliable sealing. It comes pre-greased and is compatible with common hub platforms.

✅ Inner diameter: 18 mm
✅ Outer diameter: 30 mm
✅ Width: 7 mm
✅ LBlu seals on both sides (orange and black)
✅ Pre-greased; no extra grease needed
✅ Pack size: 5 bearings per order
✅ Application: MR18307 sealed cartridge bearing for select hubs

💡 What is a sealed cartridge bearing set used for in bicycle hubs? This handy guide explains the role of these bearings in improving hub life and performance. - Handy upgrade for smoother hub rotation and longer life - Helps keep dirt out and grease in, especially in MTB and road hub environments - Widely compatible with popular hub brands and MR18307-type cartridges