Power Screw Ball Screw Specs: roller_screw
Lead screw and ball screw specifications including diameter, lead, starts, efficiency, dynamic/static load capacity, max speed, backlash, accuracy class, and L10 life — covers acme, buttress, square thread, ball screw, and planetary roller screw types from 3/8-in to 4-in nominal diameter
| screw type | size key | accuracy class | backlash in (in) | critical speed rpm at 24in unsupported (rpm) | drag torque in lb (in·lbf) | dynamic load capacity lb (lbf) | efficiency pct (%) | lead in (in) | life L10 revolutions at rated load (rev) | max speed rpm (rpm) | nominal diameter in (in) | notes | pitch in (in) | preload type | root diameter in (in) | starts | static load capacity lb (lbf) |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| roller_screw | 1.0000#0.1000#precision_C3#preload_oversized_ball | precision_C3 | 0 | 2,000 | 4 | 22,000 | 75 | 0.1 | 5,000,000 | 1,500 | 1 | Planetary roller screw; highest load density; Exlar/SKF roller screw line | 0.1 | preload_oversized_ball | 0.75 | 1 | 66,000 |
| roller_screw | 1.5000#0.1000#precision_C3#preload_oversized_ball | precision_C3 | 0 | 1,560 | 9 | 56,000 | 75 | 0.1 | 5,000,000 | 1,200 | 1.5 | 1.5-in planetary roller screw; very high load capacity; Exlar series | 0.1 | preload_oversized_ball | 1.188 | 1 | 168,000 |
| roller_screw | 2.0000#0.1000#precision_C3#preload_oversized_ball | precision_C3 | 0 | 1,250 | 16 | 104,000 | 75 | 0.1 | 5,000,000 | 1,000 | 2 | 2-in planetary roller screw; servo press/injection mold applications | 0.1 | preload_oversized_ball | 1.625 | 1 | 312,000 |
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