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The 'Z' in the designation signifies a single shielded design. This shield, usually made of steel, helps prevent the ingress of dirt, dust, or other contaminants into the bearing, ensuring a cleaner and more efficient operation. It also reduces lubricant loss, thereby extending the bearing's lifespan and performance.

Another benefit is their adaptability to shaft misalignment

The temperature range for the 6302 bearing is -30°C to +120°C, making it suitable for use in a variety of environments. The tolerance of the bearing is P0, ensuring precise fit and smooth operation.

Containment of Lubrication: The deep groove in a single row deep groove ball bearing provides space for lubricant, such as grease or oil, which helps to reduce friction, dissipate heat, and protect the bearing from wear and corrosion. Proper lubrication is essential for the smooth operation and longevity of the bearing.