Product Name: Taijing Nut
Core Technology: Structural Active Anti-Loosening
Design Standard: The product strictly complies with the GB/T 6170 national standard. Its structure is not additionally thickened to withstand higher loads, nor does it employ fine-pitch threads to pursue anti-loosening performance, achieving a balance between standardization and high performance.
The Taijing Nut is a high-performance fastener based on the concept of structural active anti-loosening. Its design breaks away from the traditional equal-pitch matching principle of threaded pairs.
Anti-Loosening Principle: Based on the physical phenomenon that “a bolt inevitably undergoes elastic elongation under preload, resulting in an increased pitch.” The Taijing Nut is designed with an initial manufacturing pitch slightly larger than the nominal pitch of a standard bolt, achieving synchronized pitch matching with the elongated bolt after tightening. This structure fundamentally balances the load distribution across each thread turn, eliminating stress concentration and local plastic deformation in the first thread turn. Consequently, it maintains long-term stability of preload under vibration, impact, and cyclic loading, achieving true anti-loosening.
Core Advantages:
Active Anti-Loosening: Maintains preload at the root cause, rather than merely preventing rotation.
High Reliability: Completely resolves issues of loosening and fatigue fracture caused by preload attenuation.
Strong Versatility: Grade 10 Taijing Nuts can be used with Grade 8.8, 10.9, and 12.9 bolts, simplifying selection and inventory management.
Ease of Operation: The installation process is identical to that of conventional nuts, requiring no special tools or complex training.
Standard Compliance: The product strictly adheres to the GB/T 6170 standard, avoiding thickening for load-bearing or fine-pitch threads for anti-loosening, ensuring full compatibility with standard bolts, installation holes, and tools.
This product is particularly suitable for applications with extremely high requirements for anti-loosening reliability, such as:
Wind turbine generators
Engineering machinery and heavy equipment
Rail transit vehicles
Aerospace equipment
High-end industrial robots
Other fields subjected to intense vibration and impact loads
Step 1: Preparation
Check Threads: Inspect the threads of the bolt and connected components to ensure they are clean, undamaged, and free of burrs.
Lubrication Recommendation: To achieve a stable and precise torque-preload relationship, it is recommended to apply a standard lubricating grease evenly to the threaded pair. This reduces friction coefficient variations, ensures accurate and controllable preload, and has been tested to not affect the structural anti-loosening performance.
Step 2: Manual Threading
Hand-thread the Taijing Nut onto the matching bolt.
Rotation should feel smooth with consistent resistance.
Step 3: Tighten to Contact
Use manual or pneumatic tools to rotate the Taijing Nut until it is fully seated against the workpiece surface.
Step 4: Apply Final Torque
Use a calibrated torque wrench for final tightening.
Preload Determination Principle: The target preload magnitude is determined by the performance grade of the selected bolt (e.g., 8.8, 10.9, 12.9). Apply torque according to the standard torque specifications for that bolt grade.
Tightening Method: Use the same pure torque method as with conventional nuts.
Preload Basis: The system preload is determined by the strength grade of the bolt. The Taijing Nut, as a functional component, ensures this preload is maintained persistently.
Strength Matching and Versatility: Grade 10 Taijing Nuts are compatible with Grade 8.8, 10.9, and 12.9 bolts. Selection only requires choosing the Taijing Nut corresponding to the bolt specification.
Standard Compliance and Compatibility: The product is manufactured strictly according to GB/T 6170, with dimensions identical to standard nuts. No changes to existing designs are required—direct replacement is possible.
Usage Consistency: The storage, handling, and installation processes for Taijing Nuts are identical to those for conventional nuts, allowing seamless integration into existing assembly procedures.
Reusability: For general working conditions, Taijing Nuts can be reused. However, for nuts that have been subjected to extreme loads or are used in critical safety applications, technical evaluation is recommended before reuse.
The superior anti-loosening performance of this product is based on correct selection and standardized installation. The company shall not be held liable for any connection failures resulting from non-compliance with this manual (e.g., improper torque application, severe thread damage, etc.).
Technical Consultation: +86-19118187399
