1. Product Overview The 6306 ZZ-C3 single row deep groove ball bearing with C3 enlarged internal clearance is a versatile general industrial bearing, fitted with double-sided ZZ steel dust shields to block fine dust and particles in multi-scenario working environments. It is widely used in industrial motors, water pumps, conveying equipment and power tools where thermal expansion, medium vibration and mixed radial-axial loads exist. 👉 Get a quote within 24 hours for your