The drawings of TJQZ-8160 and 8360 series railway bridge ball bearings were completed based on the "Key Technology Research for New Line Construction - Experimental Study on Ball Steel Bearings for Railway Simply Supported Beam Bridges (2010G016-F)" project of the Ministry of Railways' Science and Technology Research and Development Plan. Commonly used span simply supported beam bridges and T-beam bridges suitable for new, renovated, and expanded railway projects, as well as existing railway renovation projects in China. The TJQZ-8361 series products are suitable for commonly used span continuous beam bridges in China's new, renovated, and expanded railway projects, as well as existing railway renovation projects.