Note:
Stiff ness values listed above are derived from theoretical formula to the elastic deformation between thread grooves and balls while axial load is 30% dynamic load rating.

Unit:mm
Screw size Ball DIA.

Effeftive turns
circuit x row

 BASIC RATE LOAD(kgf) BALLNUT DIMENSION Nut Model No.
Length Width Height Assembly Hole Position of
Oil Hole		 Height from
Reference
Surface		 STIFFNESS
O.D. Lead Dynamic
(1×106 REV.)
Ca

Static

Co

 L

W

 H A B C JxK E F G U kgf/μm
14 4 2.381 3.5x1 500 1110 35 34 13 22 26 6.5 M4x7 6 2 6 18 15 SSVW1404A-3.5P
5 3.175 2.5x1 515 990 35 34 13 22 26 6.5 M4x7 6 2 6 18 11 SSVW1405B-2.5P
16 5 3.175 2.5x1 590 1210 35 42 16 22 32 6.5 M5x8 6 2 8 21 13 SSVW1605B-2.5P
20 5 3.175 2.5x1 625 1450 35 48 17 22 35 6.5 M6x10 6 3 9.15 22 15 SSVW2005B-2.5P
10 4.762 2.5x1 1100 2220 58 48 18 35 35 11.5 M6x10 10 2 9.5 25 16 SSVW2010D-2.5P
25 5 3.175 2.5x1 720 1830 35 60 20 22 40 6.5 M8x12 7 5 9.5 25 18 SSVW2505B-2.5P
10 6.350 2.5x2 3240 7170 94 60 23 60 40 17 M8x12 10 - 10 30 40 SSVW2510F-5.0P
28 6 3.175 2.5x2 1380 4140 67 60 22 40 40 13.5 M8x12 8 5 10 27 39 SSVW2806B-5.0P
32 10 6.350 2.5x1 1930 4680 64 70 26 45 50 9.5 M8x12 10 - 12 36 25 SSVW3210F-2.5P
2.5x2 3130 9410 94 60 17 49 SSVW3210F-5.0P