|  | LCL's Spherical Bearings have been designed to 
              be very easy to install, maintenance-free and cost-effective. The 
              product has been successfully used in a broad range of applications 
              which include: vehicle bridges, railway bridges and stadiums.
 LCL's Spherical Bearings are designed for very high vertical, horizontal 
              and lateral loads and where large rotational structural displacements 
              need to be accommodated. The bearings are grouped into three categories: 
              fixed bearing (restriction of all movement in planar axis); guided 
              bearing (restriction of movement in one direction in planar axis); 
              multi-directional bearing (allows movement in all planes and axes). 
              All three types can be designed to accommodate uplift loads, often 
              required during construction or during the life of the structure. 
              The bearings are designed to be quickly and easily replaced because 
              of the structural fastening and attachment strategy LCL deploys.
 
 Structural rotation is accommodated by a system of convex and concave 
              plates which are, in turn, mounted onto a flat sliding surface which 
              allows horizontal displacements whilst the curved bearings rotate 
              about their center of radius. In addition the bearings have the 
              capability to rotate in any direction (constraint-free rotation) 
              around both horizontal and vertical planes by the sliding action 
              of the curved spherical surfaces. The spherical bearings are capable 
              of large tilting angles with very low tilting resistance. LCL offers 
              two spherical bearing products which differ mainly in accordance 
              with the strategy used at the sliding surface interface.
 
 The most popular product is designed primarily for use in railway 
              bridges and consists of a convex bronze or stainless steel base 
              plate which is self lubricating through the incorporation of trepanned 
              recessed reservoirs containing solid lubricants whose primary constituent 
              is molybdenum. The concave smooth finished steel top plate slides 
              over the base plate which allows the large rotational displacements.
 
 However, by adopting an advanced materials design approach, LCL 
              also offers a Spherical Bearing which consists of a convex aluminium 
              or stainless steel base plate but where the steel top plate is machined 
              to accommodate a dimpled Teflon (PTFE) sheet. In this way the PTFE 
              sheet is mechanically recessed and confined, resulting in superior 
              mechanical binding. Compared to the traditional method of surface 
              bonding the sheet, LCL's design approach guarantees the integrity 
              of the sliding surface components during the life time of the bearing.
 
 All of LCL-Bridge Spherical Bearing designs, materials & fabrication 
              processes can be adapted to client required manufacturing specifications 
              or codes of practice; for any Country. The bearing is designed to 
              be maintenance free for the duration of its design life and can 
              operate down to extremely low temperatures; as low as - 40 degrees 
              Centigrade.
   
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