With this Ball Screw, the shaft diameter is the same as the lead dimension.
 
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
BLK 1510-5.6(Rolled) 15 10 15.75 34 57 44 9.8 25.2
BLK 1616-3.6(Rolled) 16 16 16.65 32 53 38 5.8 12.9
BLK 1616-7.2(Rolled) 16 16 16.65 32 53 38 10.5 25.9
BLK 2020-3.6(Rolled) 20 20 20.75 39 62 45 7.7 22.3
BLK 2020-7.2(Rolled) 20 20 20.75 39 62 45 13.9 44.6
BLK 2525-3.6(Rolled) 25 25 26 47 74 55 12.1 35
BLK 2525-7.2(Rolled) 25 25 26 47 74 55 21.9 69.9
BLK 3232-3.6(Rolled) 32 32 33.25 58 92 70 17.3 53.9
BLK 3232-7.2(Rolled) 32 32 33.25 58 92 70 31.3 107.8
BLK 3620-5.6(Rolled) 36 20 37.75 70 110 78 39.8 121.7
BLK 3624-5.6(Rolled) 36 24 38 75 115 94 46.2 137.4
BLK 3636-3.6(Rolled) 36 36 37.4 66 106 77 22.4 70.5
BLK 3636-7.2(Rolled) 36 36 37.4 66 106 77 40.6 141.1
BLK 4040-3.6(Rolled) 40 40 41.75 73 114 85 28.1 89.8
BLK 4040-7.2(Rolled) 40 40 41.75 73 114 85 51.1 179.6
BLK 5050-3.6(Rolled) 50 50 52.2 90 135 106 42.1 140.4
BLK 5050-7.2(Rolled) 50 50 52.2 90 135 106 76.3 280.7