Preloaded Nut, High Stiffness Ball Screw for Laser Cutting Machines
Designed for extreme conditions, our ball screws deliver
exceptional load-bearing capacity and superior corrosion resistance
for demanding industrial environments. On the load side, we
engineer these screws for high thrust loads and continuous
heavy-duty operation. Manufactured from select alloy steels and
reinforced through specialized heat treatment, the screw shaft and
nut achieve high surface hardness and core toughness. The gothic
arch groove design maximizes ball contact, distributing radial and
axial loads evenly. This translates to high rigidity, minimal
elastic deformation under full load, and extended service life even
in stamping presses, heavy lifting systems, and large-scale
automation equipment.
For corrosion resistance, we offer multiple protection strategies
tailored to harsh operating conditions. Our standard options
include electroless nickel plating and hard chrome coating, forming
a dense barrier that effectively resists moisture, coolants, and
mild chemicals. For marine environments or food processing
applications requiring frequent washdowns, we provide stainless
steel screws (such as 420C or 304) combined with anti-corrosion
nuts. Additionally, we can integrate specialized wipers and seals
to prevent particle ingress, ensuring long-term reliability in
cleanrooms or outdoor installations. By combining high load
capacity with robust corrosion protection, our ball screws maintain
consistent precision and smooth motion in the toughest
settings—from offshore platforms to chemical processing lines. This
dual-performance design reduces maintenance intervals and maximizes
uptime for your critical machinery.
| Unit:mm |
| Model no. | d | I | >> Bead diameter | (Nut size) | Dynamic Rating Load (Ca) | Static Rating Load (Coa) |
| D | A | B | L | W | H | X | Q | n |
| DFUR1604-3 | 16 | 4 | 2.381 | 28 | 48 | 10 | 80 | 38 | 40 | 5 | M6×1 | 1×3 | 488 | 940 |
| ☆ ☆ ☆ ☆ ☆ ☆ | DFUR1605-4 | 5 | 3.175 | 28 | 48 | 10 | 100 | 38 | 40 | 5 | M6×1 | 1×4 | 885 | 1525 |
| DFUR1610-3 | 10 | 3.175 | 28 | 48 | 10 | 118 | 38 | 40 | 5 | M6×1 | 1×3 | 716 | 1232 |
| DFUR2004-3 | 20 | 4 | 2.381 | 36 | 58 | 10 | 80 | 47 | 44 | 6.6 | M6×1 | 1×3 | 541 | 1187 |
| DFUR2005-4 | 5 | 3.175 | 36 | 58 | 10 | 101 | 47 | 44 | 6.6 | M6×1 | 1×4 | 999 | 1994 |
| DFUR2504-3 | 25 | 4 | 2.381 | 40 | 62 | 10 | 80 | 51 | 48 | 6.6 | M6×1 | 1×3 | 605 | 1534 |
| DFUR2505-4 | 5 | 3.175 | 40 | 62 | 10 | 101 | 51 | 48 | 6.6 | M6×1 | 1×4 | 1119 | 2581 |
| DFUR2510-4 | 10 | 4.762 | 40 | 62 | 12 | 145 | 51 | 48 | 6.6 | M6×1 | 1×4 | 1927 | 2771 |
| DFUR3205-4 | 32 | 5 | 3.175 | 50 | 80 | 12 | 102 | 65 | 62 | 6 | M6×1 | 1×4 | 1264 | 3402 |
| DFUR3210-4 | 10 | 6.35 | 50 | 80 | 12 | 162 | 65 | 62 | 9 | M6×1 | 1×4 | 3092 | 6101 |
| DFUR4005-4 | 40 | 5 | 3.175 | 63 | 93 | 14 | 105 | 78 | 70 | 9 | M8×1 | 1×4 | 1407 | 4341 |
| DFUR4010-4 | 10 | 6.35 | 63 | 93 | 14 | 165 | 78 | 70 | 6 | M8×1 | 1×4 | 3480 | 7979 |
| DFUR5010-4 | 50 | 10 | 6.35 | 75 | 110 | 16 | 171 | 93 | 85 | 11 | M8×1 | 1×4 | 3898 | 10325 |
| DFUR6310-4 | 63 | 10 | 6.35 | 90 | 125 | 18 | 182 | 108 | 95 | 11 | M8×1 | 1×4 | 4401 | 13611 |
| DFUR6320-4 | 20 | 9.525 | 95 | 135 | 20 | 290 | 115 | 100 | 13.5 | M8×1 | 1×4 | 7404 | 19008 |
| DFUR8010-4 | 80 | 10 | 6.35 | 105 | 145 | 20 | 182 | 125 | 110 | 13.5 | M8×1 | 1×4 | 4900 | 17366 |
| DFUR8020-4 | 20 | 9.525 | 125 | 165 | 25 | 295 | 145 | 130 | 13.5 | M8×1 | 1×4 | 8403 | 25345 |
| Note: Those marked with ☆ can produce left-hand thread. |
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