Special detecting label for chain ring

The utility model relates to a special detecting label for a chain ring, which is technically characterized in that a body of the detecting label is respectively provided with a chain ring outer length detecting groove for measuring the outer length of the chain ring, a chain ring diameter detecting groove for measuring the diameter of the chain ring and a chain ring pitch detecting ruler for measuring the pitch of the chain ring. The special detecting label has simple structure, reasonable design, quick operation, and comprehensive detection, and loading can be carried out in a binding reinforcement device for detecting whether deformation and abrasion of the outer length, the diameter and the pitch of the chain ring in the binding reinforcement device for railroad transportation surpass the limit, thereby effectively improving the security of chains in use.