The Contact Mechanics of Novikov’s Surface-Hardened Gearing during Running-in Process

Figure 2

Changing the chordal length of the arc L of the active part of the Novikov gear in the process of running-in. L₀: after running-in at the moment on the output shaft T₂=1000 Nm; L₁: as a result of running-in at the time of failure—a breakdown on the tooth of the tooth fillet at T₂ = 3550 Nm with the operating time of 7.2⋅10⁶ loading cycles; ρ_α: radius of curvature of the tooth; α_к: pressure angle at the theoretical contact point; α_ρ: the minimum angle of the profile of the active part of the tooth.