Major World Presence in the Bridge Construction LuBo produces an extensive line of self lubricating bearings and sliding components. Technological expertise and superior manufacturing techniques have enabled LuBo to develop such high quality, reliable products as LuBo #500SP series bridge bearings for bridge construction. We are working for the efficiency and productivity of your constructions. Give our LuBo 500SP series bridge bearings a try, and see the LuBo difference for yourself!! For high performance and heavy duty LuBo #500SP, bridge bearings consist of a special copper alloy as a base material and solid lubricants which are embedded therein for self-lubrication. And we treat the dry film lubricant on all of the bearing surface with the molybdenum disulphide(MoS2) for its superior lubricity and anti-abrasion under extreme pressure. Mechanical Properties Test Item Dimension Test Method Result Gravity        8.2 Tensile strength kgf/mm² ASTM D638 Min. 77 Elongation % ASTM D638 Min. 12 Yield strength kgf/mm² ASTM D638 Min. 42 Charpy impact kgfm/cm² ASTM D256 4 - 5 Hardness HB ASTM D785 Min. 210 Design Data Allowable Bearing Pressure                  350 kgf / cm² Coefficient of Friction                               0.05~0.10 (Surveyed Value) Coefficient of Friction                               0.15            (Designed Value) Durability of Bearing Plate LuBo #500SP Bridge Bearings Standard Metric Size Special Bridge Bearings The comprehensive standardized program is complemented as the situation requires with special model so that every desired, technical optimal design can be realized. We can supply complete solutions specific to the application conditions. Our specialists will be pleased to advise you.