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Slewing Bearing
Slewing Drive
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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

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Shambon Type Selection Calculation
Source :    Publication date: 2014/4/29    Read the number: 1364

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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