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              NTB-50-6 固体镶嵌润滑轴承 / Solid-lubricant-Embedded
              NTB-50-6 Series
              Substrate characteristics
              NTB-50-6 with a high strength copper alloy as a base material, according to the use condition in which a certain percentage of the cavities machined working surface and a solid lubricant filled, high-strength copper alloy provides a high load carrying capacity and a solid lubricating agents can form a low friction. Under dry friction conditions we have designed one pre-lubricated bearing surface film can ensure the shortest possible time will be transferred to the solid lubricant and even pieces of an effective solid lubricant film.
              Technical Parameters

              Material characteristics:


              · Long-term use without maintenance;

              · Designed for high static load and dynamic bearer;

              * Has a very low coefficient of friction and smooth, no \"sticking\" phenomenon;

              · Dust resistant, corrosion resistance, impact resistance and edge load capacity;

              · Metal substrate with good shock absorption capacity;

              · Can be used within a wide temperature range;

              · Suitable for reciprocating, rotary and oscillating and other start-frequent and difficult to form a film of the occasion;

              * Has a very low wear rate and long service life.

               

              Material composition and performance table
              Material Grade
              650 650S1 650S2 650S3 650S5 650HP
              Chemical Composition
              CuZn25Al5Mn4Fe3 CuSn5Pb5Zn5 CuAl10Ni5Fe5 CuSn12 CuZn25Al5Mn4Fe3 CuZn32Al5Ni3
              Density
              8 8.9 7.8 8.9 8 8
              Hardness HB
              >210 >70 >150 >95 >250 >280
              Tensile strength N/mm2 >750 >200 >600 >260 >800 >540
              Yield Strength N/mm2 >450 >90 >260 >150 >450 >450
              Elongation% >12 >15 >10 >8 >8 >0.3
              Linear expansion coefficient
              1.9x10-5/℃ 1.8x10-5/℃ 1.6x10-5/℃ 1.8x10-5/℃ 1.9x10-5/℃ 1.8x10-5/℃
              Temperature ℃ -40~+300 -40~+400 -40~+400 -40~+400 -40~+150 -40~+150
              Maximum dynamic bearing N/mm2 100 60 50 70 120 150
              The maximum line speed m/min 15 10 20 10 15 15
              The maximum PV value (lubrication)
              N/mm2*m/min
              200 60 60 80 200 200
              Permanent compression deformation
              300N/mm2
              <0.01mm <0.05mm <0.04mm <0.05mm <0.005mm <0.005mm
              Solid Lubrication economy
              Solid lubricant
              Property
              Typical use
              High purity graphite + additives
              Good wear resistance and chemical stability, temperature <400 ℃
              For general machinery, used in the atmosphere.
              PTFE+Additive Low friction coefficient and good moist nature, <300 ℃

              For water, seawater lubricated, such as ships, hydraulic radial gate, turbine,
              Pharmaceutical and beverage machinery.

              Chemical properties
              Chemicals
              Concentration % Temperature℃ 650# 650S1 650S2 650S3
              Strong acid
              5 20 × × × ×
              Hydrochloric acid
              5 20 ×
              Hydrofluoric acid
              5 20 × × × ×
              Nitrate
              5 20 ×
              Sulfuric acid
              5 20 ×
              Phosphate
                         
              Weak acid
              5 20 × ×
              Acetic acid
              5 20 × ×
              Formic acid
              5 20 × ×
              Boric acid
              5 20 × ×
              Citric acid
                         
              Alkali
              10 20 × × × ×
              Ammonia
              5 20
              Sodium hydroxide
              5 20
              Potassium hydroxide
                20
              Solvent
                         
              Acetone
                20
              Carbon tetrachloride
                20
              Ethanol
                20
              Ethyl acetate
                20
              Ethyl chloride
                20
              Glycerin
                         
              Salt
                  × × × ×
              Ammonium nitrate
                 
              Calcium chloride
                 
              Magnesium chloride
                 
              Magnesium
                 
              Sodium chloride
                 
              Sodium nitrate
                  × ×
              Zinc chloride
                 
              Zinc sulfate
                         
              Gas
                  ×
              Ammonia
                  × ×
              Chlorine
                  × ×
              Carbon dioxide
                  × × ×
              Flue gas
                 
              Sulfur dioxide
                  ×
              Hydrogen sulfide
                  ×
              Nitrogen
                 
              Hydrogen
                 
              Lubricants and fuel
                 
              Paraffin
                 
              Gasoline
                 
              Kerosene
                 
              Diesel fuel
                 
              Mineral oil
                 
              Other
                         
              Water
                 
              Seawater
                  ×
              Resin
                 
              Hydrocarbons
                 

              Contact Us
              Address: Xitang Jiashan County, Zhejiang Industry and Trade Zone
              Tel: 0573-84569666 84569668
              Fax: 0573-84569688
              E-mail: naitepm@163.com
              PC: 314102
              Web: www.ntpm.cn
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