Full ball screw lead-accuracy tables: cumulative representative lead error ±E and variation e by grade C0 / C1 / C2 / C3 / C5 / C7 / C10 and effective thread length (JIS B 1192), plus the ISO / DIN / JIS / MOSIONX e300 comparison, preload grades P0–P4 and maximum axial clearance at P0.
An accuracy grade alone says little: a C5 screw at 800 mm and one at 3000 mm differ by roughly 4× in allowed error, and e300 and e2π control entirely different error shapes. The tables below give the full breakdown by effective thread length, straight from the catalogue — usable for both drawing callouts and acceptance inspection.
| Characteristic | Definition |
|---|---|
| T — target value of cumulative lead | Difference between cumulative reference lead and cumulative nominal lead over the effective thread length — a compensation applied at manufacture for thermal growth and elastic deflection. |
| E — error of cumulative representative lead | Cumulative representative lead minus cumulative reference lead. |
| e — variation (full length) | Maximum width of the actual cumulative lead band measured between two lines parallel to the representative lead, over the whole effective thread length. |
| e300 — variation over any 300 mm | Maximum width over any 300 mm within the effective length. General grades (C7, C10) are specified by e300 only. |
| e2π — variation over one revolution | Maximum deviation of axial displacement over one revolution of the shaft, at any rotation angle. |
| Effective length (mm) over | up to | C0 ±E | C0 e | C1 ±E | C1 e | C2 ±E | C2 e | C3 ±E | C3 e | C5 ±E | C5 e | C7 e | C10 e |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| — | 100 | 3 | 3 | 3.5 | 5 | 5 | 7 | 8 | 8 | 18 | 18 | ±50/300 mm | ±210/300 mm |
| 100 | 200 | 3.5 | 3 | 4.5 | 5 | 7 | 7 | 10 | 8 | 20 | 18 | — | — |
| 200 | 315 | 4 | 3.5 | 6 | 5 | 8 | 7 | 12 | 8 | 23 | 18 | — | — |
| 315 | 400 | 5 | 3.5 | 7 | 5 | 9 | 7 | 13 | 10 | 25 | 20 | — | — |
| 400 | 500 | 6 | 4 | 8 | 5 | 10 | 7 | 15 | 10 | 27 | 20 | — | — |
| 500 | 630 | 6 | 4 | 9 | 6 | 11 | 8 | 16 | 12 | 30 | 23 | — | — |
| 630 | 800 | 7 | 5 | 10 | 7 | 13 | 9 | 18 | 13 | 35 | 25 | — | — |
| 800 | 1000 | 8 | 6 | 11 | 8 | 15 | 10 | 21 | 15 | 40 | 27 | — | — |
| 1000 | 1250 | 9 | 6 | 13 | 9 | 18 | 11 | 24 | 16 | 46 | 30 | — | — |
| 1250 | 1600 | 11 | 7 | 15 | 10 | 21 | 13 | 29 | 18 | 54 | 35 | — | — |
| 1600 | 2000 | — | — | 18 | 11 | 25 | 15 | 35 | 21 | 65 | 40 | — | — |
| 2000 | 2500 | — | — | 22 | 13 | 30 | 18 | 41 | 24 | 77 | 46 | — | — |
| 2500 | 3150 | — | — | 26 | 15 | 36 | 21 | 50 | 29 | 93 | 54 | — | — |
| 3150 | 4000 | — | — | 30 | 18 | 44 | 25 | 60 | 35 | 115 | 65 | — | — |
| 4000 | 5000 | — | — | — | — | 52 | 30 | 72 | 41 | 140 | 77 | — | — |
| 5000 | 6300 | — | — | — | — | 65 | 36 | 90 | 50 | 170 | 93 | — | — |
| 6300 | 8000 | — | — | — | — | — | — | 110 | 60 | 210 | 115 | — | — |
| 8000 | 10000 | — | — | — | — | — | — | — | — | 260 | 140 | — | — |
| 10000 | 12500 | — | — | — | — | — | — | — | — | 320 | 170 | — | — |
Values in μm. C7 and C10 are not graded by length; they are specified only by the maximum width over any 300 mm (C7: ±50 μm/300 mm, C10: ±210 μm/300 mm).
| Standard / maker | C0 | C1 | C2 | C3 | C5 (ground) | C5 (rolled) | C7 | C10 |
|---|---|---|---|---|---|---|---|---|
| ISO / DIN | — | 6 | — | 12 | 23 | 23 | 52 | 210 |
| JIS | 3.5 | 5 | — | 8 | 18 | 18 | 50 | 210 |
| MOSIONX | 3.5 | 5 | 7 | 8 | 18 | 23 | 50 | 210 |
Values in μm. Ground screws cover C0–C5, rolled screws C5–C10; MOSIONX quotes e300 = 18 μm for ground C5 and 23 μm for rolled C5.
| Grade | Axial clearance | Preload |
|---|---|---|
| P0 | Clearance present | None |
| P1 | None | None to minimal |
| P2 | None | Light |
| P3 | None | Medium |
| P4 | None | Heavy |
| Screw diameter | Rolled, max clearance (mm) | Ground, max clearance (mm) |
|---|---|---|
| ⌀04 – ⌀14 miniature | 0.05 | 0.015 |
| ⌀15 – ⌀40 medium | 0.08 | 0.025 |
| ⌀50 – ⌀100 large | 0.12 | 0.05 |