Single ring type locknut assembly

A single ring type locknut assembly, wherein the assembly in its installed state mates with a bolt, the assembly comprising:

• a nut with first internal threads, the nut provided with a frustum-shaped concave cavity with second internal threads;
• a frustum-shaped annular member provided with third internal threads and first external threads, the frustum-shaped annular member being arranged inside the frustum-shaped concave cavity;
• wherein an eccentric value is set between a first central axis of each of the third internal threads and a second central axis of each of the first external threads for eliminating a thread clearance between the first internal threads and second external threads of the bolt, a thread clearances between the second external threads and the third internal threads, and a thread clearance between the second internal threads and the first external threads, and the second external threads of the bolt are configured for mating with the first internal threads and the third internal threads and the eccentric value is greater than zero;
• each of the first internal threads, the second internal threads, the third internal threads, the first external threads and the second external threads is a standard thread.