XPR Ball Screw Quick Reference

Load Rating
Diameter-Lead Nut Dynamic Static Root Dia. (in) Torque to Raise 1 lb (in·lb)
0.631-0.200 PRN* 440 2,110 0.500 0.035
SGN 700 3,360 0.500 0.035
PRN 350 1,690 0.500 0.035
SSN 440 2,110 0.500 0.035
SSN** 450 2,115 0.500 0.035
0.750-0.200 PRN 1,473 9,916 0.602 0.035
SSN 1,473 9,916 0.602 0.035
0.875-0.200 PRN 1.375 10,780 0.735 0.035
SSN 1,375 10,780 0.735 0.035
1.000-0.250 PRN 2,285 15,815 0.820 0.044
SSN 2,285 15,815 0.820 0.044
1.150-0.200 PRN 1,680 14,886 1,015 0.035
SSN 1,680 14,886 1,015 0.035
1.250-0.200 PRN 1,668 17,344 1.115 0.035
SSN 1,668 17,344 1.115 0.035
1.250-0.500 PRN 1,765 11,080 1.050 0.088
SSN 1,765 11,080 1.050 0.088
1.500-0.250 PRN 5,075 27,250 1.320 0.044
SSN 5,075 27,250 1.320 0.044
1.500-0.500 PRN 5,650 35,522 1.174 0.088
2.250-0.500 PRN 20,106 108,325 1.850 0.088
SSN 20,106 108,325 1.850 0.088
*preloaded nut with wipers
**internal return nut

CNC welding machines use precision ground ball screws as seen in the image below.

Figure 1