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          MESSAGE
          中文版 English
          Slewing Bearing
          Slewing Drive
          Others

          Xuzhou Shambon Machinery CO.,LTD
          Add:Tongshan High-tech Development Zone, Xuzhou, Jiangsu Province, China.
          Tel:+86-516-83406186
          Fax:+86-516-80296010
          E-Mail:info@xzshangbang.com

            FAQ Home>> FAQ

          Shambon Type Selection Calculation
          Source :    Publication date: 2014/4/29    Read the number: 2428

          Shambon Type Selection Calculation
           
          一、Calculation for single-row ball slewing ring
          1、Capacity of slewing ring
           C0 = f ·D·d
           In Equality:Co ——Capacity of bearing ,kN
                  f ——Capacity factor ,0.108 kN / mm2
                  D ——Diameter of track center ,mm
                  d ——Diameter of ball ,mm
          2、Loading calculation

           In Equality:Cp ——Loading caculation , kN
                  M ——Toppling movement ,kN·m
                  Fa ——Axial force ,kN
                  Fr ——Radial force ,kN
          3、Safety factor calculation
             fs = Co / Cp
             fs see the following table。
          二、 Calculation for 3-row-roller slewing ring bearing
          1、Capacity of slewing ring
           C0 = f ·D·d
           In Equality:Co ——Capacity of bearing ,kN
                  f ——Capacity factor ,0.172 kN / mm2
                  D ——Diameter of track center,mm
                  d ——Upper row roller diameter,mm
          2、Loading caculation
           
           In Equality:Cp ——Loading caculation,kN
                  M ——Toppling movement ,kN·m
                  Fa ——Axial force,kN
          3、Safety factor calculation
             fs = Co / Cp
             fs see the following table 。
             Slewing ring safety factor fs
          Types
          Characteres
          Examples
          fs
          light duty
          not often at full capacity ,Slewing Speedfast,  assault  small steadily
          Pile the material fetching machine ,struck-crane,nonuse for port  wheel-crane
          1.00~1.15
          middle duty
          not often at full capacity,Slewing Speed faster,assault
          tower-crane,use for baot crane,pedrail-crane
          1.15~1.30
          heavy duty

          Often at full capacity ,Slewing Speed faster, assault big quickly
          grab-bucket-crane,n port-crane,single bucket excavator ,Container crane
          1.30~1.45
          extremely heavy duty
          At full capacity ,assault big quickly or the workplace condition is abominable
          bucket wheel excavator ,tunnel borer,metallurgy crane,offshore platform crane
          1.45~1.70

           

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          Tel:+86-516-83406186 Fax:+86-516-80296010 E-Mail:info@xzshangbang.com
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