Specialized Campy 52x40x7 mm ACB 45/45 headset bearing

The Specialized / Campy 52x40x7 mm ACB 45°/45° headset bearing is a high-precision replacement component compatible with Specialized frames and Campagnolo (Campy) integrated headset systems. This bearing is engineered to provide smooth, precise steering performance, enhancing control and handling. The 45°/45° angular contact design ensures optimal load distribution for both axial and radial forces, making it ideal for the demands of road and mountain biking.

Tech Specs

Outer diameter (OD): 52 mm
Inner diameter (ID): 40 mm
Thickness: 7 mm
Contact angle: 45°/45° (ACB = Angular Contact Bearing)
Bearing type: Angular contact bearing
Application: Integrated headset (IS)
Compatibility: Specialized frames (various models) and Campagnolo integrated standard
Material: High-quality steel, often with anti-corrosion treatment
Seals: Lip-seal design for protection against dirt and moisture