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        JF Size
            Type for Bi-Metaltic Bushing Grooves and Indents
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            Lock Types for Bi-Metaltic Bushing
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            The designing of oil indentations
        In order to fully lubricate the bush when in the performance, the indentations with size as follow are recommended. They should be manufactured according to the standard below if without special requirements.
        Bush O.DMore than to14~2222!4440~5050~100100~180
        Lubricating hole33367
        The lubricating hole should be away from butt joint and loading area and designed to be easy-oil-feding as well.


            Normal thickness of the JF bimetal and their tolerances
        Tolerance Thickness11.522.533.545
        Thickness of steel
        backing
        0.611.41.92.32.83.24
        Thickness of bronze
        leyer
        0.40.50.60.60.70.70.81.0
        Manufactuable wall
        thickness
        1+0.25
        +0.15
        1.5+0.25
        +0.15
        2+0.25
        +0.15
        2.5+0.25
        +0.15
        3+0.25
        +0.15
        3.5+0.25
        +0.15
        4+0.25
        +0.15
        4+0.25
        +0.15
        Manufactued wall
        thickness
        1-0.0251.5-0.032-0.0352.5-0.043-0.0453.5-0.054-0.0554-0.06


            JF JF Bimetel Bushing chemical composition
        Tolerance ThicknessJF-800JF-720JF-700JF-20
        Cu余量 Remainder余量 Remainder余量 Remainder0.7~1.3
        Pb9.0~11.021.0~27.026.0~33.0-
        Sn9.0~11.03.0~4.50.517.5~22.5
        Zn0.50.50.5-
        P0.10.10.1 
        Fe0.70.70.70.7
        Ni0.50.50.50.1
        Sb0.20.20.2-
        Ai---余量 Remainder
        Si---0.7
        Mn---0.7
        Ti---0.2
        其它 Other0.50.50.50.5


            JFBimetel Bushing Physical properties
        Physical propertiesJF-800JF-720JF-700JF-20
        Max. static load pressure
        N/mm2
        150130120100
        Tensile strength
        N/mm2
        150150200200
        Max. speed(oil) m/s5101525
        Friction coef(Oill)0.06~0.140.06~0.160.08~0.160.08~0.17
        PV limit
        N/mm2 m/s
        Grease2.82.82.5-
        Oil101086
        Sapphire Fatigue Calss Mpa12511510585
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