ACCURACY

NESTROKEBALLSPLINETOPBALL

The accuracies of the Gonio Way RVF type are represented by mutual dimensional errors of four units, which are measured along the overall length using the procedure as shown in Figure H-36. To maximize the performance of NB's Gonio Way RVF type, it is important to finish the installation surface with high accuracies.Parallelism of plane 1 against plane APerpendicularity of plane 2 against plane A Perpendicularity of plane 5 against plane A Parallelism of plane 3 against plane B Perpendicularity of plane 4 against plane B Perpendicularity of plane 6 against plane B Parallelism of plane 2 against plane C Parallelism of plane 4 against plane C Mutual error between the size of a and b

NB Mark NB MarkNB Mark NB MarkReference edgeReference plane of B-curved tracking baseReference plane of B-curved tracking base PRODUCTS

Table H-15 Accuracy

Part Number Mutual Error between A and B Mutual Error between E and F
SLIDEBUSHSLIDEUNITSTROKEBUSH Mutual Error between C and D Mutual Error between H and I RVF2050-070 RVF2050-087 RVF2050-103 RVF2050-120
Reference plane of A-curved tracking base RVF3070-085 10 10 RVF3070-110 RVF3100-125 RVF3100-160
B AC D EFHI Inside section SLIDEROTARYBUSH

LIFE CALCULATION

rotating angle

The life of an NB miniature slide table can be calculated using the following equations: Travel life:Life Time:

90

310 6

L=CPf

f

L

= 10L 60n

SLIDESHAFT L: travel life (106round trips) :rotating angle (degree)f L h : life time (hr) s: stroke length (m)n T : temperature coefficient fw: load coefficient 1 : number of strokes per minute (cpm) C: basic dynamic load (N) P: applied load (N) Refer to page Eng-5 for the coeffieients.

ACCURACY OF MOUNTING SURFACE

SLIDE WAY/GONIO WAY

Figure H-37 Accuracy of installation surface

SLIDE TABLEMINIATURE SLIDEACTUATORSLIDESCREW A Centerline 1.6 2431435 1.6 1.6 C 1.6 1.6 1.6 1.6 B 6b a

H-59