## Ball Bearing 63/28 C3 28x68x18mm - KOYO, Athena MS280680180C3K This high-quality 63/28 C3 28x68x18mm ball bearing is offered by the renowned brand Athena, in collaboration with the leading bearing manufacturer KOYO. It's the ideal solution for motorcycles and scooters, guaranteeing reliability and long service life. The bearing meets OEM quality standards, ensuring trouble-free operation and a perfect fit. ### Technical Specifications: * **Inner Diameter:** 28mm * **Outer Diameter:** 68mm * **Width:** 18mm * **Radial Internal Clearance:** C3 (Larger than normal, compensating for thermal expansion) * **ISO Code:** 63/28 ### Why choose an Athena bearing? Athena is a brand known for its high-quality motorcycle and scooter parts. The collaboration with KOYO, a world leader in bearing manufacturing, guarantees excellent precision, durability, and wear resistance. The 63/28 C3 bearing is designed for demanding operating conditions, ensuring smooth and quiet engine operation. The increased C3 internal clearance compensates for thermal expansion, preventing bearing seizure and extending its service life. By choosing an Athena bearing, you are investing in the reliability and safety of your vehicle. ### Benefits: * High-quality workmanship * Long service life * Wear resistance * Smooth and quiet operation * Trouble-free installation * Compliance with OEM standards