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
WHF 1530-3.4(Rolled) 15 30 15.75 32 53 64.5 8 14.4
WHF 2020-3.4(Rolled) 20 20 20.75 42 64 47.1 9.6 21
WHF 2040-3.4(Rolled) 20 40 20.75 37 62 82.7 9.6 20.3
WHF 2525-3.4(Rolled) 25 25 26 50 77 58.8 14.5 33.1
WHF 2550-3.4(Rolled) 25 50 26 45 69 103.3 14.4 31.9