A deflector-type Ball Screw in which a preload is provided via a spacer between the two combined ball screw nuts to achieve a below-zero axial clearance (under a preload).

 
Model No. Screw 
shaft 
outer 
diameter

d
Lead


Ph
Ball 
center-to-
center 
diameter

dp
 
Outer 
diameter

D
g6
Flange 
diameter


D1
Overall 
length


L1
Basic load rating Detail specifications CAD Dimensional drawing
Dynamic 
rating

Ca
Static 
rating

C0a
2D 
(DXF)
3D
mm mm mm mm mm mm kN kN
DKN 4020-3 40 20 41.75 62 104 223 29.4 69.3
DKN 5020-3 50 20 52.25 75 129 243 44.2 108.8
DKN 6320-3 63 20 65.7 95 159 243 83.5 229.3