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          Company:Ningbo David Mechanical and Electrical Manufacturing Co., Ltd.
     Add:No.245,Longxu Road, Wangchun Industrial Park, Yinzhou Zone, Ningbo City
     Tel:86-574-88333123
     Fax:86-574-28806977
     E-MAIL:zj@nb-david.com
     Linkman:Mr. Yan
     KeyWords:滚珠丝杆
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      Order code of ball screw
    DVT
    -
    D
    -
    16
    ×
    5
    -
    052
    -
    RH
    -
    KX
    -
    1111
    -
    KX
    -
    FM
    -
    VV
    -
    0
    1
    2
    3
    4
    5
    6
    7
    8
    9
    10
    11
    12

    1.Product name 2.Specification of screw cap 3.Metric diameter(Unit:mm)
    DVT=whole group of ball screw including screw cap
    DVS=ball screw
    DVM=cylinder screw cap
    DVF=flange screw cap    		 D=according to the standard screw cap of DIN69501  
    4.Journey(Unit:mm) 5.Precision grade of screw 6.Rotation direction of thread
      052=52μm/300mm(Grade P7) Rolling screw
    023=23μm/300mm(Grade P5) Rolling screw    		 RH= Right circumrotation
    LH=Left circumrotation
    7.Processing end of screw (one end)(Unit: mm) 8.Gross length of screw(Unit: mm) 9.Processing end of screw(another end)
    Kx= without processing
    K111= Length of processing end 1111mm
    (This end is flange direction end of screw cap)    		   (Unit:mm)
    Kx=without processing
    K111=Length of processing end 111mm
    10.Mode of screw cap 11.Mode of dust-removing ring 12.Others
    F=single flange screw cap
    M=single cylinder screw cap
    FF=prepress double-flange screw cap
    MM=prepress double-cylinder screw cap
    FM=prepress flange + cylinder screw cap     		W=with standard dust-removing ring
    0=without    		 0=without
    1=with(should attach detailed diagram or specification)
    Sample
    1.
    		 Order whole group of ball screw
    		DVT-D-25×5-023-RH-K50-1100-K50-FM-VV-0
    2.
    		 Order ball screw only
    		DVS-25×5-052-RH-K50-1100-K50-0
    3.
    		 Order screw cap only
    		DVF-D-25×5-RH-VV-0
    Precision of ball screw
    V 300p
    V 2π p
    ep
    ep
    V up
    C
    Variable of inner journey within any 300mm
    Variable of 2π single inner journey
    (It is only suitable for P type ball screw)
    Average journey error within valid journey ιu
    a.To metric journey
    b.To target journey
    (It is only suitable for T type ball screw)
    Average journey error within valid journey ιu
    (It is only suitable for T type ball screw)
    Variable of journey within valid journey ιu
    (It is only suitable for P type ball screw)
    The difference between target journey and metric journey within valid journey

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