XT CATALOG

Ball screw reference Number of starts Nominal diameter (mm) Lead (mm) Ball Diameter (mm) Root diameter (mm) Circuits Dynamic load capacity Static load capacity Rigidity of ball contact zone Rigidity of nut, with Fext: 20%Ca Nut length 1/2 d 0 P h D w d 2 i C a [N] C oa [N] R b/t [N/μm] R nut [N/μm] L n,std [mm] TSB-S 50-16-8-4 1 50 16 7,938 44,5 4 75600 157000 1140 1040 122 TSB-S 50-16-8-5 1 50 16 7,938 44,5 5 91100 196300 1410 1290 138 TSB-S 50-16-8-6 1 50 16 7,938 44,5 6 106300 235500 1680 1530 155 TSB-S 50-16-8-7 1 50 16 7,938 44,5 7 121200 274800 1950 1770 171 TSB-U 50-16-8-2 1 50 16 7,938 43,3 2 48800 90200 760 710 72 TSB-U 50-16-8-3 1 50 16 7,938 43,3 3 69300 145900 1160 1090 88 TSB-U 50-16-8-4 1 50 16 7,938 43,3 4 88900 199000 1550 1450 104 TSB-U 50-16-8-5 1 50 16 7,938 43,3 5 108900 254700 1950 1830 120 TSB-U 50-16-8-6 1 50 16 7,938 43,3 6 127600 307800 2310 2170 136 TSB-U 50-16-8-7 1 50 16 7,938 43,3 7 146700 363500 2670 2510 152 TSB-U 50-16-8-8 1 50 16 7,938 43,3 8 164700 416600 3000 2820 168 TSB-U 50-20-6-2 1 50 20 6,35 44,5 2 35200 69800 670 630 73 TSB-U 50-20-6-3 1 50 20 6,35 44,5 3 49500 111100 1030 970 93 TSB-U 50-20-6-4 1 50 20 6,35 44,5 4 63200 150800 1360 1270 113 TSB-U 50-20-6-5 1 50 20 6,35 44,5 5 77200 192100 1690 1590 133 TSB-U 50-20-6-6 1 50 20 6,35 44,5 6 90400 231700 2000 1880 153 TSB-U 50-20-6-7 1 50 20 6,35 44,5 7 103700 273000 2310 2170 173 TSB-S 50-20-8-2 1 50 20 7,938 44,5 2 44100 78300 600 550 98 TSB-S 50-20-8-3 1 50 20 7,938 44,5 3 59600 117500 870 800 122 TSB-S 50-20-8-4 1 50 20 7,938 44,5 4 75300 156600 1140 1060 143 TSB-S 50-20-8-5 1 50 20 7,938 44,5 5 90800 195800 1410 1300 164 TSB-U 50-20-8-2 1 50 20 7,938 43,3 2 49600 92600 780 740 79 TSB-U 50-20-8-3 1 50 20 7,938 43,3 3 69100 145500 1160 1100 99 TSB-U 50-20-8-4 1 50 20 7,938 43,3 4 89400 201100 1560 1480 119 TSB-U 50-20-8-5 1 50 20 7,938 43,3 5 108500 254000 1940 1840 139 TSB-U 50-20-8-6 1 50 20 7,938 43,3 6 127900 309600 2310 2200 159 TSB-U 50-20-8-7 1 50 20 7,938 43,3 7 146200 362500 2660 2530 179 TSB-U 50-25-6-2 1 50 25 6,35 44,5 2 35600 71100 680 650 82 TSB-U 50-25-6-3 1 50 25 6,35 44,5 3 49200 110600 1020 970 107 TSB-U 50-25-6-4 1 50 25 6,35 44,5 4 63300 151700 1360 1290 132 TSB-U 50-25-6-5 1 50 25 6,35 44,5 5 76800 191200 1680 1590 157 TSB-U 50-25-6-6 1 50 25 6,35 44,5 6 90300 232300 2000 1900 182 TSB-U 50-25-8-2 1 50 25 7,938 43,3 2 49300 92200 770 740 87 TSB-U 50-25-8-3 1 50 25 7,938 43,3 3 68700 144900 1150 1100 112 TSB-U 50-25-8-4 1 50 25 7,938 43,3 4 88900 200300 1540 1480 137 TSB-U 50-25-8-5 1 50 25 7,938 43,3 5 108600 255600 1940 1860 162 TSB-U 50-25-8-6 1 50 25 7,938 43,3 6 127200 308300 2290 2200 187 - Ca and Coa: Modified static and dynamic load capacities, calculated according to DIN 69051/4 standard and ISO3408/5. See Technical description catalogue (pg. 39-43). - Rb/t: Rigidity of the balls contact zone for an external force 10% of Ca. See page 46. For a different preload force, multiply by - Rnu: Total rigidity of the complete nut. It must be multiplied by the factor f ar which depends on the manufacturing tolerance. See Technical description catalogue (pg. 48). F pr /0,1 C a 3 TMBS, Single nut 46