6305-2Z/C4GJN

• 6305: Basic series designation, indicating a medium duty, single row deep groove ball bearing with a 25mm bore.
• 2Z: Signifies that the bearing is shielded on both sides. These non-contact steel shields protect the internal components from contamination while minimizing friction.
• C4: Denotes a greater than normal radial internal clearance. This is particularly beneficial in applications where thermal expansion is a concern, preventing excessive preload and potential seizure.
• GJN: Indicates the bearing is pre-lubricated with a polyurea-based grease. This grease offers a wide operating temperature range and contributes to the bearing's high limiting speed.

The bearing's performance is defined by its specific construction and specifications:

• High Load Capacity & Rigidity: Manufactured from chrome steel for both rings and balls, this bearing delivers a high radial dynamic load rating of 4631 lbf, ensuring reliable performance under significant stress.
• Optimized for Thermal Expansion: The C4 radial clearance is a critical feature, allowing the bearing to accommodate shaft and housing expansions in high-temperature environments without binding.
• High-Speed Capability: The combination of deep groove geometry, high-grade steel cage, and GJN grease enables a high limiting speed of 11,000 rpm.
• Low Maintenance & Contamination Protection: The 2Z shields effectively retain grease and exclude larger contaminants, making the bearing virtually maintenance-free for its service life.
• Precision & Consistency: Manufactured to ABEC 1 | ISO P0 tolerance class, it ensures consistent performance and ease of installation in a wide range of industrial equipment.

The 6305-2Z/C4GJN is ideally suited for a variety of demanding industrial applications, including:

• Electric Motors
• Gearboxes and Power Transmission Systems
• Industrial Fans and Blowers
• Material Handling Conveyors
• Agricultural Machinery
• Pumps and Compressors