K7 Type Bogie

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K7 Type Bogie

The bogie can be installed on the standard gauge railway freight car with axle load of 25t and maximum operating speed  of  120  km/h  which  is  used  on  Chinese  railway  line.The  bogie  is  of  three-piece  cast  steel  bogie,and  mainly  composed  of  wheel  set  assembly,side  frame  assembly,bolster  assembly,elastic  side  bearing  assembly,roller  bearing  device,brake   device,central   suspension    device,rubber   cushion,wheel   set    radial   device,etc.The   wheel    set   radial  device  is  composed  of  two  U-shaped  auxiliary  frame  assemblies,two  cross  connecting  rods  and  connecting  pins,The  primary  suspension  adopts   rubber  cushion;the   long-travel  constant  contact  elastic  side   bearing;the  wheel  shall   be  monoblock rolled steel HESA type or cast steelHEZD type;the RE2Btype axle and the bearing coded as ‘353130B’shall  be  applied;the  brake  device  shall  be  of  lower  connecting  rod  type,and  the  single  high  friction  coefficient  composite  brake shoe acts on one wheel tread is also applied

轴重Axleload

自重Tare weight

25t

4.7t

轨距Trackgauge

最高运行速度Max.operatingspeed

1435mm

120km/h

下心盘直径Diameter of ogiecenter plate

轴颈中心距Distance between acting centres ofjaurnal load

制动倍率Brakingleverage

375mm

1981mm

6

心盘面距轨面高(心盘毂荷65.7KN,不含心盘磨耗盘)7 ener pbeangerte onon,ecudin ne pateweang lis 680mm
在检修限度内,符合GB146 . 1 – 1983车限 – 2的要求。

Within the repair limit,it meets the requirements of rolling strocklimitgauge-2specifiedin GB146.1-1983standard

 

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Subject : 5mm Round Bore Flanged Bearing (Replaces goBILDA 1601-0412-0005) MF125ZZ

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