1. Product Introduction

　　The seismic isolation spherical bearing is composed of an upper plate, a lower plate, a spherical crown liner, a concave liner, a spherical wear-resistant plate, a flat wear-resistant plate, shear blocks, shear pins, shear bolts, etc. Its structure is consistent with that of ordinary spherical bearings, and the horizontal bearing capacity is 20% of the vertical bearing capacity.

　　2. Product Features

　　1) The spherical crown liner is made using a stainless steel cladding process, which gives it high wear resistance and a low friction coefficient, improving the performance and service life of the bearing;

　　2) The combination of shear blocks, shear pins, and shear bolts allows the bearing to transform from a unidirectional to a multidirectional bearing when the design horizontal bearing capacity is exceeded, preventing further damage to the bearing and achieving the purpose of shock absorption and isolation, thus reducing losses without the need for replacement;

　　3) The wear-resistant plate is made of modified ultra-high molecular weight polyethylene, which meets the needs for high bearing capacity while also providing good wear resistance;

　　4) The bearing inherits the good performance of ordinary spherical bearings and is not limited by the temperature of the operating environment, making it widely applicable.

　　3. Product Application Technology

　　The seismic isolation spherical bearing strictly adheres to the national standard GB/T 17955-2009 "Technical Conditions for Spherical Bearings" of the People's Republic of China, and also refers to the draft of the structural bearing standard published by the European Committee for Standardization CEN/TC 167 in August 1993, specifically the seventh part "Spherical and Column PTFE Bearings" and the second part "Sliding Components", as well as the British Standard BS 5400 "Steel Bridges, Concrete Bridges, and Composite Bridges" Part 9 "Bridge Bearings".