Food Grade Lubrication For CNC Ball Screw Heavy Load Efficient
Transmission
SEXGL ground ball screws deliver unparalleled accuracy and
durability in high-precision automation systems, trusted by global
leaders like BYD (EV powertrain assembly) and BOE (LCD panel
cutting robots) across North America, Europe, Southeast Asia, and
South Korea.In an era where CNC machines demand increasingly
stringent precision, speed, and reliability, our ball screws serve
as the critical link between precision control and high-efficiency
production through material innovation, structural optimization,
and process enhancement. Whether for micron-level precision
grinding or continuous high-speed, heavy-load machining, they
ensure stable performance of the machine tool's motion
system—empowering our customers to overcome bottlenecks in
machining accuracy and productivity.
Characteristics
Micron-level positioning accuracy is achieved through
precision grinding processes and high-precision lead control,
ensuring positioning errors within ±5 microns (optional C3
precision class per ISO 3408). The unique ball recirculation system
design converts sliding friction to rolling friction for efficient
power transmission, capable of handling heavy loads while
maintaining high-speed performance. Optional configurations include
corrosion-resistant coatings (for wet or corrosive environments)
and food-grade lubrication solutions (suitable for medical/food
processing equipment), making it adaptable to diverse industrial
applications.
Theory
Ball screws operate via recirculating ball bearings that roll
between the screw shaft and nut. As the screw rotates, the balls
circulate through helical grooves, transferring motion linearly.
This rolling-contact mechanism replaces sliding friction with
near-frictionless motion, reducing heat generation and power
consumption. Preload adjustments eliminate axial play, ensuring
zero backlash and enhanced positional accuracy.
Model no. | D | Lead |
Bead diameter | (Nut size) | Dynamic Rating Load(
Ca) | Static Rating
Load
(Coa) |
| D | A | B | L | W | H | X | Y | Z | Q | n |
| SFIR1605-4 | 16 | 5 | 3.175 | 30 | 49 | 10 | 50 | 39 | 34 | 4.5 | 8 | 4.5 | M6×1 | 1×4 | 888 | 1525 |
| SFIR1610-3 | 10 | 3.175 | 34 | 58 | 10 | 57 | 45 | 34 | 5.5 | 9.5 | 5.5 | M6×1 | 1×3 | 716 | 1232 |
| SFIR2005-4 | 20 | 5 | 3.175 | 34 | 57 | 11 | 51 | 45 | 40 | 5.5 | 9.5 | 5.5 | M6×1 | 1×4 | 999 | 1994 |
| SFIR2505-4 | 25 | 5 | 3.175 | 40 | 63 | 11 | 51 | 51 | 46 | 5.5 | 9.5 | 5. | M8×1 | 1×4 | 1119 | 2581 |
| SFIR2510-4 | 10 | 4.762 | 46 | 72 | 12 | 85 | 58 | 52 | 6.5 | 11 | 6.5 | M8×1 | 1×4 | 1903 | 3695 |
| SFIR3205-4 | 32 | 5 | 3.175 | 46 | 72 | 12 | 52 | 58 | 52 | 6.5 | 11 | 6.5 | M8×1 | 1×4 | 1264 | 3402 |
| SFIR3210-4 | 10 | 6.35 | 54 | 88 | 15 | 90 | 70 | 62 | 9 | 14 | 8.5 | M8×1 | 1×4 | 3092 | 6101 |
| SFIR4005-4 | 40 | 5 | 3.175 | 56 | 90 | 15 | 55 | 72 | 64 | 9 | 14 | 8.5 | M8×1 | 1×4 | 1407 | 4341 |
| SFIR4010-4 | 10 | 6.35 | 62 | 104 | 18 | 93 | 82 | 70 | 11 | 17.5 | 11 | M8×1 | 1×4 | 3480 | 7779 |
| SFIR5010-4 | 50 | 10 | 6.35 | 72 | 114 | 18 | 93 | 92 | 82 | 11 | 17.5 | 11 | M8×1 | 1×4 | 3898 | 10325 |
| SFIR6310-4 | 63 | 10 | 6.35 | 85 | 131 | 22 | 98 | 107 | 95 | 14 | 20 | 13 | M8×1 | 1×4 | 4401 | 13611 |
| SFIR8010-4 | 80 | 10 | 6.35 | 105 | 150 | 22 | 98 | 127 | 115 | 14 | 20 | 13 | M8×1 | 1×4 | 4900 | 17366 |
