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        Home >> NTB-50-6 SeriesProducts
        NTB-50-6 固體鑲嵌潤滑軸承 / 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
        Copyright ? 2014 Jiashan Naite Precision Mechinery Co.,Ltd. All rights reserved. Zhejiang ICP for 11057013-1
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