Designed specifically for headsets, the Enduro ACB 6806 CC is a premium angular contact bearing built to thrive in harsh riding environments. With a 37mm x 49mm x 6.5mm profile and 36x45° contact angles, this bearing is often referenced under the part number HD446K in the cycling industry.
Constructed with 440C stainless steel balls and races, this bearing offers exceptional corrosion resistance; ideal for riders who frequently wash their bikes, ride in wet conditions, or need added protection from sweat and moisture. The 440C alloy provides the highest strength, hardness, and wear resistance of any 440-series stainless, and undergoes rigorous heat and cryogenic treatments to enhance durability and performance.
The bearing is sealed with Enduro’s LLB seals and packed with CRC Marine Grease to deliver superior waterproofing and protection against the elements. While stainless steel has a slightly lower load capacity than Enduro’s standard 52100 chromium steel, it excels in longevity and reliability where rust or corrosion may otherwise be a concern.
Enduro's ACB (Angular Contact Bearing) range is designed so that all bearing balls share the load evenly. This increases efficiency, reduces friction, and significantly extends the lifespan meaning more time on the bike and less in the workshop.
Whether you're replacing a worn headset bearing or upgrading for long-term performance, the ACB 6806 CC is a robust, corrosion-resistant solution trusted by riders and used by many top headset brands.
Features:
- Bearing Code: ACB 6806 CC
- Angular Contacts: 36x45
- Seals: LLB
- Grease: CRC Marine Grease
- Application: Headsets
- Dimensions: 37 x 49 x 36mm