SRT Ball Screw Quick Reference

Load Rating
Diameter-Lead Nut Screw Material Dynamic Static Root Dia. (in) Torque to Raise 1 lb (in·lb)
0.375-0.125 SBN 4150 136 1,415 0.300 0.022
SBN SS 24 255 0.300 0.022
SBN* 4150 272 2,830 0.300 0.022
SBN* SS 50 509 0.300 0.022
0.500-0.200 SBN 4150 973 7,071 0.405 0.035
0.500-0.500 SBN 4150 786 4,131 0.350 0.088
SBN SS 141 744 0.350 0.088
0.631-0.200 SBN 4150 815 6,384 0.500 0.035
SBN SS 140 1,149 0.500 0.035
SBN** 4150 712 5,250 0.500 0.035
SEL 4150 815 6,384 0.500 0.035
0.631-0.500 SBN 4150 960 5,565 0.500 0.088
SEL 4150 960 5,565 0.500 0.088
0.631-1.000 SBN 4150 620 2,580 0.500 0.177
0.750-0.200 SBN 4150 1,100 8,569 0.602 0.035
SBN* 4150 2,200 17,138 0.602 0.035
SEL 4150 2,200 17,138 0.602 0.035
0.750-0.500 SBN 4150 2,723 17,425 0.602 0.088
0.875-0.200 SBN 4150 1,942 18,063 0.735 0.035
1.000-0.250 SBN 4150 1,612 13,913 0.820 0.044
SBN SS 290 2,504 0.820 0.044
SBN* 4150 3,224 27,826 0.820 0.044
SEL 4150 1,612 13,913 0.820 0.044
SAR 4150 1,612 13,913 0.820 0.044
1.000-0.500 SBN 4150 3,440 25,250 0.820 0.088
SEL 4150 3,440 25,250 0.820 0.088
1.000-1.000 SBN 4150 2,142 11,925 0.820 0.177
1.150-0.200 SBN 4150 2,142 11,925 1.015 0.035
SEL 4150 2,142 11,925 1.015 0.035
1.171-0.413 SBN 4150 3,894 22,917 0.870 0.073
1.250-0.200 SBN 4150 3,336 34,688 1.115 0.035
1.250-0.500 SBN 4150 2,745 17,235 1.050 0.088
1.500-0.250 SBN 4150 4,198 44,030 1.320 0.044
SEL 4150 4,198 44,030 1.320 0.044
SAR 4150 4,198 44,030 1.320 0.044
1.500-0.473 SBN 4150 10,050 57,770 1.140 0.084
1.500-0.500 SBN 4150 12,320 97,696 1.174 0.088
1.500-1.000 SBN 4150 7,560 34,662 1.140 0.176
SEL 4150 7,560 34,662 1.140 0.176
1.500-1.875 SBN 4150 7,242 29,895 1.188 0.332
2.250-0.500 SBN 4150 21,306 142,660 1.850 0.088
SAR 4150 21,306 142,660 1.850 0.088
2.250-1.000 SBN 4150 26,538 142,660 1.850 0.177
SAR 4150 26,538 142,660 1.850 0.177
2.500-0.250 SBN 4150 6,135 81,938 2.320 0.044
SAR 4150 6,135 81,938 2.320 0.044
2.500-0.500 SBN 4150 21,200 186,660 2.320 0.088
3.000-0.660 SBN 4150 44,316 271,733 2.480 0.117
3.000-1.500 SBN 4150 53,646 253,617 2.480 0.266
4.000-1.000 SBN 4150 85,758 476,970 3.338 0.177
6.000-1.000 SBN 4150 115,507 443,548 5.232 0.177
*double circuit
**internal return
Figure 1