A Double Row Self-Aligning Ball Bearing is a type of ball bearing designed to handle radial loads and light axial loads in both directions, while also allowing for shaft misalignment. This makes it ideal for applications where alignment is difficult or where shaft deflection occurs.

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

Self-Aligning: Automatically compensates for shaft misalignment, deflections, and mounting errors

Load Capability: High radial load capacity, light axial load in both directions

Misalignment Tolerance: Typically up to 3°, depending on size and design

Speed Capability: Suitable for moderate to high-speed operation

Advantages

• Accommodates misalignment without increasing friction or wear
• Quiet and smooth operation
• Ideal for flexible shaft or imperfect housing alignment
• Low maintenance, especially when sealed