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The CEMA Steuersatzlager ACB 52 x 40 x 7 x 45°/45° is a high-quality headset bearing designed to deliver smooth, precise steering performance on modern bicycles. Built to fit integrated and semi-integrated headset systems that use these dimensions, it provides a reliable interface between fork and frame, helping your bike track accurately through corners and under braking. The angular contact bearing design with 45°/45° contact angles is widely used in contemporary headsets because it efficiently handles both radial and axial loads, ensuring stable steering and long-term durability even under demanding riding conditions.
This CEMA headset bearing is an ideal replacement when your original bearing starts to feel rough, develops play, or shows signs of corrosion. Upgrading to a fresh, precisely manufactured bearing can noticeably improve steering feel, reduce unwanted noise, and extend the life of your headset and fork. Suitable for a wide range of road, MTB, gravel, and urban bikes that match the specified size, it is a smart choice for riders who value reliability and low maintenance. Whether you are servicing your bike at home or in a professional workshop, this bearing offers consistent performance and easy installation when used with the correct tools and compatible headset cups.
