If the outer ring rotates, there is a risk that the grease will leak from the bearing at high speeds.
High Quality Stainless Steel Bearing 2RS SS Sealed DDU MTB Hub Road Bike
6800 2RS Series Bike Bearing 61800 - 61809 Bicycle Bearings
6800 2RS Wheel Bearing
61806 2rs [6806 2rs] 30x42x7 Stainless SEALED HIGH PERFORMANCE CARTRIDGE BEARING
61901 2rs [6901 2rs] 12x24x6mm Stainless Steel SEALED HIGH PERFORMANCE BEARING
Hope 61901-2RS Bearing | Stainless Steel | Sealed | 2RS | MTB | Road Bike
![61806 2rs [6806 2rs] 30x42x7 Stainless SEALED HIGH PERFORMANCE CARTRIDGE BEARING](https://images.buynet.work/thumb.php?i=370957068&s=240)
![61901 2rs [6901 2rs] 12x24x6mm Stainless Steel SEALED HIGH PERFORMANCE BEARING](https://images.buynet.work/thumb.php?i=379834576&s=240)
