DLY SFU2010 Ball Screw Description
20mm Diameter, 10mm Lead - Precision Ball Screw for CNC and Automation Axes
The SFU2010 is a single-nut, flanged ball screw with a 20mm nominal shaft diameter and 10mm lead. It is commonly specified in CNC routing, laser cutting, and general automation axes where a larger lead is needed for higher linear speed at a given motor RPM, compared to the 5mm-lead SFU2005 in the same diameter.
Understanding the SFU2010 Designation
The model number follows the standard SFU naming convention: the first two digits indicate the nominal shaft diameter, and the last two digits indicate the lead.
SFU 20 10 = 20mm diameter + 10mm lead
A 10mm lead means the nut travels 10mm along the shaft for every full revolution of the screw - twice the linear travel per revolution compared to the 5mm-lead SFU2005 at the same diameter. This makes SFU2010 the better choice when axis speed is the priority and the application load falls within its rated capacity.
| Item | SFU2010 Ball Screw |
| Model | SFU2010 / 2010 Ball Screw |
| Nominal Diameter | 20mm |
| Lead | 10mm |
| Accuracy Grade | C7 Rolled / C5 Ground Available |
| Screw Shaft Material | S55C Steel |
| Nut Material | 20CrMo |
| Hardness | HRC58–62 |
| Nut Type | Flange Ball Nut |
| Dynamic Load Rating | 830 kgf |
| Static Load Rating | 1680 kgf |
SFU2010 Ball Screw – Technical Specifications
| Parameter | Value |
|---|---|
| Shaft diameter (d) | 20mm |
| Lead (l) | 10mm |
| Ball diameter (Da) | 3.175mm |
| Number of circuits (N) | 3 |
| Flange outer diameter (D) | 36mm |
| Flange bolt circle (A) | 58mm |
| Flange thickness (B) | 10mm |
| Nut length (L) | 47mm |
| Nut width (W) | 47mm |
| Nut height (H) | 44mm |
| Mounting hole thread (Q) | M6 |
| Dynamic load rating (Ca) | 830 kgf |
| Static load rating (Coa) | 1,680 kgf |
| Axial stiffness (K) | 20 kgf/μm |
SFU2010 Ball Screw and Nut
The DLY SFU2010 Ball Screw is manufactured using cold-rolled technology for C7 and C10 precision grades, and ground technology for C5 precision grade. The length is customizable, with a typical maximum of 4000mm.
The end machining options are also customizable, including:
- Threaded ends
- Keyed ends
- Plain ends for coupling
- Flanged ends
DLY SFU2010 ball screw nut is crafted from high-quality 20CrMo steel, boasting excellent wear resistance and mechanical strength for long-lasting reliability.
Preload levels are fully customizable-we accommodate customer samples for precise setup or provide custom samples for confirmation.
Additionally, laser marking is available: choose to print our brand logo, product model, or your company logo as required. Tailored to your unique needs, our nuts deliver both performance and brand alignment.
Applications of SFU2010 Ball Screw
Used for fast X/Y/Z axis movement in woodworking, engraving and furniture processing equipment.
CNC Router Machines
Suitable for medium-load linear transmission where travel speed and stable operation are required.
Laser and Plasma Cutting
Applied in conveying, positioning and material handling equipment.
Automatic Feeding Systems
Supports efficient linear movement in repetitive automation cycles.
Packaging Machinery
Can be matched with guide rails, supports and couplings for complete motion systems.
Industrial Linear Modules
The 10mm lead helps improve travel efficiency for longer stroke applications.
Long Travel Axes
For applications requiring higher load capacity at the same 20mm diameter, see SFU2005-4 (5mm lead, 1,130 kgf Ca). If your application requires zero backlash at direction reversal - important for precision CNC machining or applications with frequent direction changes - consider the DFU double-nut series in a comparable diameter.
Get Wholesale SFU2010 Ball Screw Price
How SFU2010 Compares to Other 20mm Diameter Options
When specifying a 20mm diameter ball screw, the choice between a 5mm and 10mm lead depends on whether your axis prioritizes thrust or speed:
| Model | Diameter | Lead | Ca (kgf) | Coa (kgf) | Stiffness K (kgf/μm) | Best suited for |
|---|---|---|---|---|---|---|
| SFU2005-3 | 20mm | 5mm | 860 | 1,710 | 22 | Lighter duty, 5mm lead |
| SFU2005-4 | 20mm | 5mm | 1,130 | 2,380 | 25 | Higher thrust, standard duty |
| SFU2010-3/2 | 20mm | 10mm | 830 | 1,680 | 20 | Higher speed, moderate duty |
At the same 20mm shaft diameter, SFU2010-3/2 has a lower dynamic load rating (830 kgf) than SFU2005-4 (1,130 kgf). This reflects the difference in circuit configuration between the two leads - for applications where load capacity is the priority within the 20mm diameter range, SFU2005-4 provides higher Ca. For applications where rapid traverse speed is the priority and the load falls within SFU2010's rated capacity, the larger lead delivers double the linear speed for the same motor RPM.
Selection guidance: If your application needs maximum thrust or load capacity at 20mm diameter, specify SFU2005-4. If your application prioritizes faster linear speed and the load is within 830 kgf dynamic rating with an adequate safety margin, SFU2010-3/2 is the appropriate choice.
About DLY
DLY – Professional Ball Screw Manufacturer
DLY has over 20 years of experience in the research, development, and production of high-precision ball screws. As a factory manufacturer, we control the entire process from raw materials to finished products, ensuring consistent quality, precision, and reliability. Unlike trading companies, all our products are made in-house at DLY.
At DLY, every SFU2010 Ball Screw is produced with strict quality control and advanced manufacturing technology, including CNC grinding and cold-rolling processes. Our skilled team ensures high precision, low backlash, and long service life for every ball screw, making DLY a trusted choice for industrial automation and precision machinery.
Factory Area
years experience
Employees
patents
DLY Honors & Certifications
Since its founding in 2005, DLY has steadily grown into a leading manufacturer of high-precision ball screws and linear motion systems.
Key Certifications & Patents:
- ISO 9001 Quality Management Certification – ensuring consistent product quality and reliability.
- 60+ Patents – including invention patents, utility model patents, and appearance patents.
- National High-Tech Enterprise – recognized for technological innovation and R&D excellence.
Industry Honors & Recognition:
- "Top 10 Advanced Enterprise" – awarded by China Machine Tool & Tool Builders' Association.
- "Excellent Enterprise in Dual-City Creation" – recognizing outstanding business performance.
- "Five-Star Party Organization" – reflecting organizational and management excellence.
With advanced production facilities and a highly skilled workforce, DLY continues to set benchmarks in precision manufacturing and linear motion technology, serving clients worldwide with reliable, world-class products.
DLY Precision Manufacturing Workshops Overview
At DLY, every ball screw and ball nut is produced within our own precision workshops, equipped with advanced grinding machines, rolling mills, heat-treatment lines, and automated inspection systems.
These workshop photos showcase our integrated manufacturing environment-from raw material processing to precision grinding, quenching, polishing, and final assembly.
By keeping all major processes in-house, DLY ensures stable quality, consistent accuracy, and reliable delivery for SFU and other ball screw series.
Why B2B Buyers Trust DLY – Packaging, Delivery & Service Assurance
📦 Reliable Packaging
- Anti-rust oil immersion
- Sealed plastic bag + foam protection
- Extra end protection for machined ends
- Carton or wooden case for final packing
- 0 packaging complaints in 20+ years
⏱️ Fast Lead Time
- Standard SFU2010: 3–7 days
- Custom lengths & end machining: 5–12 days
📉 Flexible MOQ
- No strict MOQ for standard models
- Small orders welcome
💳 Payment Options
- T/T
- L/C (large orders)
- Western Union (samples)
🚚 Global Shipping
- DHL / FedEx / UPS / TNT
- Air freight / Sea freight
- FOB, CIF, DDP available
Why Choose DLY
- 20+ years manufacturing experience
- 100% in-house ball screw production
- Trusted by global distributors & project buyers
FAQ
FAQ
Q: Is DLY a factory or a trading company?
A: DLY is a real manufacturing factory with over 20 years of experience in producing ball screws and linear motion components, and all SFU2010 ball screws are fully made in-house to ensure stable quality, consistent accuracy, and factory-direct pricing.
Q: Are DLY's SFU2010 ball screws interchangeable with TBI or HIWIN?
A: Yes, DLY's SFU2010 ball screws follow international standard dimensions and can be directly interchangeable with brands such as TBI, HIWIN, and PMI, including nut type, lead, and mounting interfaces, making them suitable replacements for most industrial machines.
Q: What materials are used for the SFU2010 screw shaft and nut?
A: The SFU2010 screw shaft is made from S55C steel and the ball nut is made from 20CrMo alloy steel, both treated with precision heat-treatment and grinding or rolling processes to achieve high strength, high wear resistance, and long operating life.
Q: What accuracy grades does DLY offer for SFU2010?
A: DLY provides C5, C7, and C10 accuracy grades for SFU2010; the C5 version is ground and offers P2 preload, while the C7 and C10 versions are rolled types with P1 and P0 preload levels respectively, allowing customers to choose the right precision level based on their application requirements.
Q: What is the maximum length available for SFU2010?
A: DLY supports customized lengths and can produce SFU2010 ball screws up to 4000 mm for rolled types, and both ends can be machined according to customer drawings or standard machining codes.
Q: Does DLY support custom end machining?
A: Yes, DLY provides full end-machining services based on customer drawings, and all machined ends receive additional protective caps during packaging to ensure safe international transportation.
Q: What are the dynamic and static load ratings of DLY SFU2010?
A: The dynamic load rating is 830 kgf and the static load rating is 1680 kgf, making the SFU2010 suitable for CNC machinery, automation equipment, woodworking machines, and other precision motion systems.
Q: How does DLY pack the SFU2010 ball screw for export?
A: Each SFU2010 ball screw is fully immersed in anti-rust oil, sealed in a protective plastic bag, wrapped with foam for impact absorption, protected with end caps if machining is included, and finally packed in a strong carton or wooden case; DLY has never received a packaging complaint in more than 20 years, and our packaging quality has consistently received full scores in various tender evaluations.
Q: What is the production lead time?
A: Standard SFU2010 ball screws usually require 3 to 7 days, while custom lengths or machining orders typically take 5 to 12 days, and urgent scheduling can be arranged depending on production capacity.
Q: What payment methods does DLY support?
A: DLY accepts T/T bank transfer, L/C for large orders, Alibaba Trade Assurance, and Western Union for sample orders, providing flexible payment solutions for global buyers.
Q: What shipping methods are available?
A: DLY ships worldwide using DHL, FedEx, UPS, TNT, air freight, and sea freight, and supports trade terms including FOB, CIF, and DDP to meet different logistics requirements.
Q: Why is DLY's SFU2010 considered high cost-performance?
A: Because DLY is a true factory with integrated production lines, we control every step from raw material to final inspection, eliminate middle-man costs, maintain stable precision quality, offer flexible MOQ, and provide highly competitive pricing while keeping international-level manufacturing standards.
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