Overview: The document provides detailed information on NACHI's EX Type Spherical Roller Thrust Bearings, highlighting their high capacity, quiet operation, and improved performance over conventional designs.

Specifications: The EX Type bearings feature a newly developed heat stabilization treatment allowing operation under high temperatures with minimal dimensional changes. The R-shaped pressed steel cage enhances lubrication flow, reducing heat generation and extending permissible speed.

Performance Improvements: The EX Type bearings achieve a 50% reduction in vibration and lower noise levels due to improved internal parts quality. The optimized internal design maximizes roller diameter, quantity, and effective length, distributing stress equally and increasing bearing life by 1.5 to 2 times compared to conventional E-Type bearings.

Testing and Results: High-speed rotating tests demonstrate the EX Type's superior performance, with reduced temperature rise and extended speed capabilities. The design optimizations reduce heat generation by over 10% and increase permissible speed by over 10% compared to conventional designs.

Load Ratings and Dimensions: The document includes detailed tables of boundary dimensions, dynamic and static load ratings, and limiting speeds for various EX Type bearing models. It emphasizes the importance of maintaining a minimum axial load to prevent damage from sliding motion.

Recommendations: For optimal performance, oil lubrication is recommended due to the many sliding surfaces in the bearings. The maximum permissible misalignment angle is about 2° under general service conditions.

Global Presence: NACHI's global network includes offices and manufacturing facilities across the Americas, Europe, and Asia, ensuring widespread availability and support for their products.