CS Ball Screw FSE & FSB Series - High Precision Linear Motion Components
CS Ball Screw FSE & FSB Series - Taiwan-manufactured precision ball screws with both external and internal circulation options. High-quality linear motion components featuring high rigidity, low noise, and DN values up to 140,000. Available in multiple models with customization options for precision machinery applications.
Ball Screw FSE & FSB
Ball screw is a mechanical device consisting of a screw shaft and a nut which contain steel ball that rolls between their matching helical grooves. The primary function of ball screws is to convert rotational motion to linear motion. The use of nut provides high efficiency, high load capacity, and positioning accuracy.
Material
High Carbon Steel with medium frequency induction treatment
Hardness: HRC58-62
Variation per 300mm (e300) (JIS B 1192)
| Grade | C0 | C1 | C2 | C3 | C5 | C7 | C10 |
|---|---|---|---|---|---|---|---|
| e300 | 0.0035 | 0.005 | 0.007 | 0.008 | 0.018 | 0.05 | 0.21 |
Selection of Nut
1. Series: When making selection of series, please take into consideration of demanded accuracy, dimensions, and preload, etc.
2. Circulation Type:
(a) External Circulation Type
● Economy ● Suitable for mass production ● Applicable to those with larger lead or larger outside diameter of screw shaft
(b) Internal Circulation Type
● With nuts of finely crafted outside diameter (occupying small space)
● Applicable to those with small lead or small outside diameter of the screw
(c) High Lead Type
● High Speed, High DN Value ● Low noise, Green product ● Small Size, Space saving
3. Number of Loop Circuits: Performance and life service should be considered when selecting number of loop circuits.
4. Shape of Flanges: Please make selection based on the available space for the installation of nuts.
5. Oil Hole: Oil holes are provided for the precision Ball Screws, it can be used during machine assembling and regular maintenance.
External Ball Circulation Nuts
* Feature:
1. Provide Smoother Ball Running
2. Provides better quality for long lead or large diameter of ball screws
Internal Ball Circulation Nuts
* Feature:
It is suitable for the machine with limit space for Ball Screw installation. And it is strictly required the screw shaft must contain min one end with complete threads. In order to assemble successfully, the rest area next to this complete thread must be with smaller diameter than the nominal diameter of the screw shaft.
High Lead Ball Screw
* Feature:
1. High DN Value
● The DN value can be 130,000 in normal case. For some special cases, for example, in a fixed ends case, the DN value can be as high as 140,000.
2. High Speed
● High speed ball screws provide 100 m/min and even higher speed for machine tools.
3. High Rigidity
● Screw shaft and nut are both surface hardened to a specific hardness and case depth to maintain high rigidity and durability.
● Multiple thread starts are available to make more steel balls loaded in the nut for higher rigidity and durability.
4. Low Noise
● Special design of ball circulation tubes which provide smooth ball circulation inside the nut. It also makes steel ball running into the tubes without damaging the tubes.
● Accurate ball circle diameter through whole threads for consistent drag torque and low noise.
Model
FSE: 1616-2, 2020-2, 2520-2, 2525-2, 3232-2, 4040-2, 5050-2
FSB: 1404-3, 1405-3, 1605-3, 2005-3, 2505-3, 2510-3, 2510-4, 3210-3, 3210-4, 4010-4
Drawing
Ball Screw FSE Drawing
Ball Screw (FSE)
| Model No. | Dimension | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| d | I | Da | D | A | B | L | W | X | H | Q | n | Ca (Kgf) | Coa (kgf) | |
| 1616-2 | 16 | 16 | 3.175 | 32 | 53 | 10 | 10.5 | 48 | 42 | 4.5 | 38 | M6 | A2 | 1512 |
| ★2020-2 | 20 | 20 | 3.175 | 39 | 62 | 10 | 10.8 | 55 | 50 | 5.5 | 46 | M6 | A2 | 1659 |
| 2520-2 | 25 | 20 | 3.5 | 47 | 74 | 12 | 11 | 65 | 60 | 6.6 | 49 | M6 | A2 | 2106 |
| 2525-2 | 25 | 25 | 3.969 | 47 | 74 | 12 | 11.2 | 67 | 60 | 6.6 | 56 | M6 | A2 | 2481 |
| 3232-2 | 32 | 32 | 4.762 | 58 | 92 | 15 | 14 | 82 | 74 | 9 | 68 | M6 | A2 | 3585 |
| 4040-2 | 40 | 40 | 6.35 | 73 | 114 | 17 | 17 | 100 | 93 | 11 | 84 | M6 | A2 | 5778 |
| 5050-2 | 50 | 50 | 7.938 | 90 | 135 | 20 | 21.5 | 125 | 112 | 14 | 92 | M6 | A2 | 8819 |
★ Can be produced left-hand thread.
Ball Screw FSB Drawing
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Spec. of Ball Screw FSE / FSB
Spec. of 1616-2, 2020-2, 2520-2, 2525-2, 3232-2, 4040-2, 5050-2 / Spec. of 1404-3, 1405-3, 1605-3, 2005-3, 2505-3, 2510-3, 2510-4, 3210-3, 3210-4, 4010-4
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How can high DN value ball screws improve your machine's performance and longevity?
Our high lead ball screws achieve DN values up to 140,000, allowing your machinery to operate at significantly higher speeds (up to 100 m/min) without compromising accuracy or lifespan. This exceptional performance is achieved through precision-engineered ball circulation systems and surface-hardened components that maintain high rigidity even under demanding conditions. Contact us to learn how our high DN value ball screws can reduce cycle times and increase throughput in your precision applications.
Our FSE series (models 1616-2 through 5050-2) and FSB series (models 1404-3 through 4010-4) offer versatile solutions for various industrial applications. The external circulation design provides smoother ball running and superior quality for long lead or large diameter applications, while the internal circulation option is ideal for space-constrained installations. The high lead ball screw variant achieves impressive DN values up to 140,000, speeds of 100 m/min or higher, enhanced rigidity through surface hardening, and significantly reduced noise levels through special circulation tube design. All models are manufactured to strict JIS B 1192 standards, ensuring consistent quality and performance.