Self-aligning Ball Bearings and Angular Contact Ball Bearings

1. Self-aligning Function:  The outer ring of the 1212 self-aligning ball bearing has a spherical raceway, with the curvature center aligned with the bearing center. When the inner ring, balls, and cage tilt slightly relative to the outer ring, the bearing can still operate normally. This design compensates for misalignment caused by installation errors or operational shaft deflection, reducing wear due to poor alignment and extending the bearing’s lifespan.

2. High Load Capacity:  The contact points between the balls and the inner and outer rings of the 7213 angular contact ball bearing form multiple contact lines. This design distributes the load and reduces pressure on individual contact points, enhancing load capacity and ensuring stability and safety during heavy lifting operations.

3. Improved Operational Efficiency:  The combination of the 1212 self-aligning ball bearing and the 7213 angular contact ball bearing effectively reduces friction, improving the crane's operational efficiency. The self-aligning ball bearing’s design minimizes friction during operation, reducing energy loss, while the angular contact ball bearing maintains efficient power transmission under heavy loads.

Additional Notes:

The customer in Colombia decided to purchase QIBR's 1212 self-aligning ball bearings and 7213 angular contact ball bearings to meet the demands for enhanced safety, reliability, and longevity in their crane slewing rings. Both bearings are made from wear-resistant materials, ensuring excellent performance even in harsh conditions. QIBR provided the Colombian customer with a safe, reliable, and efficient solution, enabling higher performance and profitability in the crane industry.