Interlocking Strength: Interlocking Strength (链牙咬合力)
The ability of adjacent teeth to stay engaged when the closed chain is loaded. It depends on tooth profile, engagement depth, pitch accuracy and material stiffness. Good interlocking strength keeps the chain closed under pressure and reduces the chance of splitting at stress points. It is assessed together with burst strength and inspected visually for partial engagement, tooth deformation and gaps along the closed chain.