Product Parameters
1. Reference table of selected accuracy, clearance, preloading grade and nut
| Accuracy | Preservation and clearance | Nut, nut form | Lead screw form |
| C10 | P0 with clearance | Single nut | Cold-rolled lead screw and converted grade rod lead screw |
| C7 | (P1 or P0)DLY standard is (P1) | According to customer requirements | Cold rolled lead screw |
| C5 |
Manufactured according to customer requirements, if not required,The DLY standard is (P2) |
According to customer requirements | Cold-rolled lead screw or grinding grade with lead test table |
| C3 |
Manufactured according to customer requirements, if not required,The DLY standard is (P2) |
According to customer requirements | Grinding grade with lead test table |
2. Clearance (PO) cold rolling (conversion grade) and grinding grade ball screw (PO) maximum axial clearance
| Outer Diameter Dimension Of Lead Screw | Cold Rolled Ball Screw Maximum Axial Clearance |
Grinding Grade Ball Screw Maximum Axial Clearance |
| Φ04 -Φ -14 miniature ball screw | 0.05 | 0.015 |
| Φ15-Φ 40 medium-sized ball screw | 0.08 | 0.025 |
| Φ50 -Φ100 large ball screw | 0.12 | 0.05 |
| Φ100 above for the super large ball screw | 0.18 | 0.08 |
Product Features and Applications
Application Scenario Of DLY Aerospace Ball Screws
Powering Innovation and Safety Across Aerospace Applications
Flight Control System
used to control the control surface of the aircraft (such as aileron, elevator, rudder, etc.) to provide accurate positioning and motion transmission to ensure the control of flight attitude and heading.
01
Engine Regulator
used to control the variable nozzle, intake valve and combustion chamber of the engine to optimize combustion efficiency and thrust output.
02
Landing Gear System
It plays a key role in the expansion, positioning and locking of the aircraft landing gear to ensure the smooth take-off and landing of the aircraft.
03
Airborne Equipment
used in flight control systems, aviation instruments and life-saving equipment and other fields to provide fast response and stable operation.
04
Solar Panels
used for the expansion and folding of spacecraft solar panels to ensure that they achieve optimal energy collection under different lighting conditions.
05
Core Advantages of DLY aerospace ball screws in Aviation Applications
High power density and lightweight
Advantage: Extremely high efficiency means that a smaller and lighter drive motor is required to deliver the same power. At the same time, the screw and nut itself can be optimized with high-strength lightweight materials (such as titanium alloy, special high-strength alloy steel). This is essential to reduce the weight of the aircraft and improve fuel efficiency.
Excellent dynamic response and accuracy
Advantages: The combination of low friction, high stiffness and low backlash allows the system to respond quickly and accurately to control commands. This is essential for high-speed, high-precision flight control systems (such as fly-by-wire control systems), which directly affects the maneuverability and safety of the aircraft.
Withstand high load and harsh environment
Advantages: Aviation ball screws are specially designed to withstand extreme loads (such as aerodynamic loads, impact loads), wide temperature range (low temperature at high altitude, high temperature near the engine), vibration, shock, and potentially corrosive environments (Salt spray, hydraulic oil, etc.). Special materials and surface treatments (e. g. nitriding, coating), seal design and high-performance grease are used to ensure reliable operation under harsh conditions.
High reliability and safety
Advantages: The design, manufacturing, testing and certification process of aerospace ball screws follow extremely strict standards (such as AS9100). Its long life, predictable failure modes and often redundant design in critical systems (such as multi-channel actuators) ensure high mission reliability and flight safety.
Compactness
Advantages: It can achieve high thrust and long stroke movement in a relatively compact space, and adapt to the layout requirements of the limited internal space of the aircraft.
The maintainability
Advantages: Although designed for long life, aviation-grade ball screws are usually designed with lubrication points or interfaces for easy inspection/replacement. Its modular design also facilitates maintenance or replacement when required (although replacement frequency on aircraft is low).
Product Details
| Product Name | Aerospace Ball Screws |
| Raw Material | Bearing steel |
| Brand | DLY |
| Suggest length | 4000mm for export |
| Sample order | Accept |
| Delivery time | 4-20 days normally |
| Whole set | Available |
| Package | Wooden box for large quantity |
| Payment terms | TT, western union, pay by agent, etc. |
Product Evidence
DLY represents one of the mainstream and high-tech levels of the industry.
The successful application on the key system of the star model is the most powerful practical verification.
Passing stringent industry standards (1SO9100) and airworthiness certification is a legal endorsement of safety and reliability.
Compliance with military standards and special material process specifications is the basic guarantee of performance.
Detailed technical specifications, test reports and special designs provide micro-level performance support.
These evidences jointly prove that the aerospace ball screws are not an ordinary industrial product, but a cutting-edge engineering product with the most rigorous design, the most precise manufacturing and the most fully verified. Its excellent performance (high efficiency, high precision, high rigidity, high reliability and long life) is an irrefutable fact that it is successfully applied in the aviation field. Selecting supplier products with a wealth of aviation application cases and complete certification qualifications is the key to ensuring system performance and flight safety.
Quality Control
During production, we will measure the size and specifications of the product. If there is a problem with the product, we will reject it and not send it to the customer. Our quality control department attaches great importance to product quality. The warranty period is one year.
Selection Of Materials
The use of high strength, high purity aviation grade alloy steel (such as S55C), and through smelting control of impurities.
01
Advanced Heat Treatment And Surface Strengthening
Proof: precision controllable nitriding, induction hardening and other processes, the formation of deep, hardness gradient of the surface hardening layer, greatly improve the wear resistance and fatigue strength. The hardness gradient test is proof.
02
Precision Grinding And Testing
Proof: Use nano-precision thread grinding machine and online detection equipment (laser interferometer, profiler) to ensure the accuracy of raceway geometry, surface roughness and lead accuracy. Provide full-size inspection report.
03
Special Grease And Seal
Proof: the use of wide temperature range, long life, low volatile aviation special grease. Multi-stage, low-friction, long-life seals are used to prevent contaminants from entering and grease leakage.
04
Preservation Structure And Anti-Loosening Design
evidence: double nut pre-tightening, with steel ball design to eliminate backlash. Nut flange or special locking structure prevents loosening under high vibration. This can be supported by design drawings and assembly process descriptions.
05
Delivery, Shipping And Serving
For sample order and small quantity order, it need about 4-7 days for delivery. For large quantity order, it need about 7- 20 days for preparing all goods. It is better to pack by wooden box to protect goods on the way. We suggest to send by express or by air for light weight. If the weight heavy it is better to send by sea for save costs.
Choosing DLY means choosing:
- Peace of mind: Airline-grade quality assurance and worry-free after-sales commitment, allowing you to focus on your core tasks.
- Saving: Professional, fast, proactive full-process service, greatly reducing your operation and maintenance burden and risk.
- Confidence: With strong technical backing and global support network, you have more confidence in dealing with challenges.
- Considerate: Customer-centered, in-depth understanding of demand, to provide service experience beyond expectations.
Let the precision transmission, carrying a reliable flight; with attentive service, to protect your every flight!
Payment Methods
Advance Payment + Tail Payment
Advance Payment Ratio: Usually 30% of the contracted amount, which is used for the supplier to start the production or purchase the raw materials.
Tail payment: the remaining 70% of the payment before shipment (or after acceptance), and full payment is required before shipment (especially for the first time customers).
Letter of Credit (L/C)
Method: Through bank guarantee, the buyer opens a letter of credit, and the seller collects the payment with documents after delivery according to the agreed conditions.
Advantage: Protect the rights and interests of both parties and reduce transaction risks.
Other payment tools
T/T: most commonly used, need to confirm the accuracy of account information.
Banker's Acceptance: may be used in domestic transactions, but there is a billing period.
Third-party payment platforms: small transactions or trial orders may be supported.
FAQ
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