Knowledge

Accuracy of the ball screw shaft

Accuracy of the ball screw shaft

Accuracy of the ball screw shaft is divided into eight levels
Accuracy class: C0, C1, C2, C3, C4, C5, and the general accuracy: C7 and C10. Larger the number, the lower the accuracy.

Positioning screw

 drive screw

C0

C1

C2

C3

C4

C5

C7

C10

High Accuracy                                                                 Lower accuracy

Accuracy of the ball screw shaft defined by three parameters, namely: Lead accuracy, precision mounting surface, the percentage change in the pre-stress moments. Japanese Industrial Standard JIS customized for each accuracy class data standards.
(For example) a C5 grade ball screws include: Lead accuracy C5, mounting accuracy C5, the percentage change in the pre-stress moments C5.

Precision ball screw mechanical system should be chosen to meet the required positioning accuracy. Kuroda Precision from the practical application experience summed up the following criteria for information.

Machine type

Accuracy class

C0

C1

C2

C3

C4

C5

C7

C10

CNC machines

Machining centers
Milling

XY

 

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Z

 

 

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Lathe

X

 

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Z

 

 

 

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Grinding machine

X

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Z

 

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EDM machining tools

XY

 

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Z

 

 

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Punch

 

 

 

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btn

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Woodworking machines

 

 

 

 

 

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Industrial robots

Cartesian

 

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Articulated arm type

 

 

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SCARA(Facet joint) type

 

 

 

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Semiconductor Manufacturing Equipment

Photoresist exposure system, the mask system

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Etching, ion implantation system

 

 

 

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btn

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Wire welder, welding machine die

 

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Wafer Prober

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PC board assembly systems

 

 

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Printing equipment

Electronic color separation equipment

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Electronic typesetter

 

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Business Equipment

Color printer

 

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XY plotter, auto-mapping system

 

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Injection molding machine

 

 

 

 

 

 

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Delivery and pick and place systems

 

 

 

 

 

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Taian Haishu Machinery Co.,Ltd.

Technology Feed

2013-07-01