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Threaded Rod
Stud Bolts
Trapezoidal Threaded Spindles
Main features
Materials
Positioning Accuracy
Straightness
KTS
KUE
KKA
KSR
KQX
KEQ
KRP
KRE
KAM
KAF
Trapezoidal Nuts
Screw and Nuts on drawings
Catalogue Complete
Trapezoidal Threaded Spindles
  Straightness    

CONTI screws are produced with controlled straight lines. Screws straightness is appraised by measuring the variation of the deflection when the screws is supposed at the ends on two constraints and rotated slightly. For example, the screw KKA TR 30 A (threading TR 30x6 with start) has straightness of 0.3 on 3.000 mm. This means that a screw TR 30x6 3000 mm long resting on two constraints at the ends and slightly rotated displays a camber variation D less than 0,3 mm at all point of the screw.

See drawing

A good screw straightness gives operation with load always centred on the axis, hence uniform distribution of surface contact pressure between the screws and nut with resulting smooth running and regular rotation and traversing.

Technical drawings
   
   
 
             
   
 
 

 

 

 

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