NS

Model No. Ball screw unit Ball spline Detail 
specifi-
cations		 CAD Dimensional
drawing
Screw 
shaft
outer 
diameter

d		 Lead


Ph		 Ball
center-to-
center 
diameter

dp		 Outer 
diameter

D
g6		 Flange 
diameter


D1		 Length


L1		 Flange 
diameter


D5		 Length


L2		 2D (DXF) 3D
mm mm mm mm mm mm mm mm
NS 1616 16 16 16.65
 
52  
 
  0
–0.007
 68 43.5 51
 
50  
 
  0
–0.2
NS 2020 20 20 20.75
 
62  
 
  0
–0.007
 78 54 58
 
63  
 
  0
–0.2
NS 2525 25 25 26
 
72  
 
  0
–0.007
 92 65 65
 
71  
 
  0
–0.3
NS 3232 32 32 33.25
 
80  
 
  0
–0.007
 105 80 77
 
80  
 
  0
–0.3
NS 4040 40 40 41.75
 
110  
 
  0
–0.008
 140 98 100
 
100  
 
  0
–0.3
NS 5050 50 50 52.2
 
120  
 
  0
–0.008
 156 126 124
 
125  
 
  0
–0.3