6308-2Z/C4VT127B

• 6308: Basic designation indicating a medium-duty, single row deep groove ball bearing with a 40mm bore and 90mm outside diameter.
• 2Z: Signifies that the bearing is shielded on both sides. These non-contact steel shields protect the internal components from dust and other contaminants while minimizing friction.
• C4: Denotes a greater than normal radial internal clearance. This is particularly beneficial in applications with significant thermal expansion or where a heavier interference fit is used, preventing excessive preload and potential bearing failure.
• VT127B: A manufacturer-specific code that typically refers to a particular heat stabilization treatment. This process enhances dimensional stability under fluctuating temperatures, allowing the bearing to maintain performance across its specified temperature range of -30°C to 120°C.

The performance of the 6308-2Z/C4VT127B is a direct result of its specific design features. The deep groove raceway and single row of balls provide excellent capability for handling high radial dynamic and static loads (915 lbf and 5395 lbf respectively). The C4 radial clearance ensures reliable operation in thermally challenging environments, preventing binding. The double-shielded (2Z) construction offers effective sealing for contamination protection, contributing to a maintenance-free and long-lasting operation. Furthermore, the heat stabilization (VT127B) guarantees consistent performance and precision by mitigating the effects of thermal expansion.

This bearing's combination of load capacity, contamination resistance, and thermal stability makes it suitable for a wide range of industrial applications. Typical uses include:

• Electric Motors and Generators
• Industrial Gearboxes and Transmission Systems
• Material Handling Equipment (e.g., conveyor pulleys)
• Agricultural Machinery
• Pumps and Compressors