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                  NTB-50 固體鑲嵌潤滑軸承 / Solid-lubricant-Embedded
                  NTB-50-1 Series
                  Substrate characteristics
                  NTB-50 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 of the solid lubricant is 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
                  Copyright ? 2014 Jiashan Naite Precision Mechinery Co.,Ltd. All rights reserved. Zhejiang ICP for 11057013-1
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