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 50-12-8-6 1 50 12 7,938 44,5 6 106600 236000 1690 1490 130 TSB-S 50-12-8-7 1 50 12 7,938 44,5 7 121500 275300 1950 1730 142 TSB-S 50-12-8-8 1 50 12 7,938 44,5 8 136200 314700 2220 1970 154 TSB-U 50-12-8-2 1 50 12 7,938 43,3 2 48900 90400 760 700 65 TSB-U 50-12-8-3 1 50 12 7,938 43,3 3 69500 146200 1170 1070 77 TSB-U 50-12-8-4 1 50 12 7,938 43,3 4 89200 199400 1550 1430 89 TSB-U 50-12-8-5 1 50 12 7,938 43,3 5 109200 255200 1960 1800 101 TSB-U 50-12-8-6 1 50 12 7,938 43,3 6 128000 308400 2320 2130 113 TSB-U 50-12-8-7 1 50 12 7,938 43,3 7 147100 364300 2690 2470 125 TSB-U 50-12-8-8 1 50 12 7,938 43,3 8 165200 417400 3020 2780 137 TSB-U 50-15-6-2 1 50 15 6,35 44,5 2 35400 70100 680 620 64 TSB-U 50-15-6-3 1 50 15 6,35 44,5 3 49700 111500 1040 950 79 TSB-U 50-15-6-4 1 50 15 6,35 44,5 4 63500 151300 1370 1250 94 TSB-U 50-15-6-5 1 50 15 6,35 44,5 5 77100 191100 1690 1550 109 TSB-U 50-15-6-6 1 50 15 6,35 44,5 6 90800 232500 2020 1850 124 TSB-U 50-15-6-7 1 50 15 6,35 44,5 7 103800 272300 2320 2130 139 TSB-S 50-15-8-2 1 50 15 7,938 44,5 2 44300 78600 600 540 87 TSB-S 50-15-8-3 1 50 15 7,938 44,5 3 59800 117800 870 790 104 TSB-S 50-15-8-4 1 50 15 7,938 44,5 4 75600 157100 1150 1040 120 TSB-S 50-15-8-5 1 50 15 7,938 44,5 5 91100 196400 1410 1280 136 TSB-S 50-15-8-6 1 50 15 7,938 44,5 6 106400 235700 1680 1520 152 TSB-S 50-15-8-7 1 50 15 7,938 44,5 7 121300 274900 1950 1770 167 TSB-U 50-15-8-2 1 50 15 7,938 43,3 2 48800 90300 760 710 70 TSB-U 50-15-8-3 1 50 15 7,938 43,3 3 69400 146000 1170 1090 85 TSB-U 50-15-8-4 1 50 15 7,938 43,3 4 89000 199100 1550 1450 100 TSB-U 50-15-8-5 1 50 15 7,938 43,3 5 108900 254900 1950 1820 115 TSB-U 50-15-8-6 1 50 15 7,938 43,3 6 127700 308000 2310 2160 130 TSB-U 50-15-8-7 1 50 15 7,938 43,3 7 146800 363700 2680 2500 145 TSB-U 50-15-8-8 1 50 15 7,938 43,3 8 164900 416800 3010 2810 160 TSB-U 50-16-6-2 1 50 16 6,35 44,5 2 35300 70000 670 620 66 TSB-U 50-16-6-3 1 50 16 6,35 44,5 3 49600 111400 1040 960 82 TSB-U 50-16-6-4 1 50 16 6,35 44,5 4 63500 151200 1360 1260 98 TSB-U 50-16-6-5 1 50 16 6,35 44,5 5 77000 191000 1690 1560 114 TSB-U 50-16-6-6 1 50 16 6,35 44,5 6 90700 232400 2010 1860 130 TSB-U 50-16-6-7 1 50 16 6,35 44,5 7 103700 272200 2310 2140 146 TSB-S 50-16-8-2 1 50 16 7,938 44,5 2 44300 78500 600 550 86 TSB-S 50-16-8-3 1 50 16 7,938 44,5 3 59800 117800 870 790 104 - 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 44