A Double Row Self-Aligning Ball Bearing is a specialized bearing designed to accommodate misalignment and support moderate radial and light axial loads in both directions. It features two rows of balls and a spherical outer raceway, which allows the inner ring to tilt or “self-align” without damaging the bearing.

Design: Two rows of balls with a common spherical raceway in the outer ring

Self-Aligning: Can compensate for shaft misalignment, deflection, or mounting errors

Load Support: Good radial load capacity, light axial load in both directions

Speed Capability: Suitable for high-speed operation

Misalignment Tolerance: Typically up to 3° (depends on design and size)

Advantages

• Handles shaft misalignment without increased friction or wear
• Smooth and quiet operation at high speeds
• Maintenance-friendly—less sensitive to poor alignment
• Available in open, sealed, and extended inner ring designs