A practical choice for home mechanics, workshops and riders replacing a compatible 6806 bearing in a BB30 bottom bracket.
The Sealed Bearing 6806 BB30 is a replacement cartridge bearing for compatible BB30 bottom-bracket systems. The 6806 bearing size is commonly used in BB30 applications with 30 mm spindle cranks, making this a useful option for a routine bottom-bracket refresh or workshop repair.
The bearing uses a sealed design to help keep its internal parts protected during everyday riding. Before ordering, check the bearing currently fitted to your frame or bottom bracket and confirm the required 30 x 42 x 7 mm size, as BB30-related systems can vary between designs and conversion setups.
Choose this bearing when you need a simple replacement rather than a complete bottom-bracket assembly. Correct installation and removal tools are important: the bearing should be pressed in squarely and inspected for smooth rotation before the crankset is refitted.
BB30 replacement format
Designed around the 6806 bearing format used in BB30 bottom-bracket applications.
30 mm spindle compatibility
Suitable for compatible BB30 systems using a 30 mm crank spindle.
Sealed cartridge design
A self-contained sealed bearing format for straightforward replacement and servicing.
Common 6806 dimensions
The referenced 30 x 42 x 7 mm size makes it easier to compare against the bearing already installed on your bike.
Check before installation
Confirm your frame or bottom bracket calls for this bearing size before ordering, particularly if the bike uses a conversion or aftermarket system.
Workshop-friendly replacement
A simple component option for a bottom-bracket service when the existing bearing has become rough or worn.
Specifications
