渦電流式減速装置用ロータ

Japanese Patent JP7234773

B2

To provide a rotor for an eddy current-type reduction gear capable of suppressing an electric resistance low and maintaining high strength even at 700°C.SOLUTION: A cylinder part 11 of a rotor 10 of the present embodiment is composed of a chemical composition by mass% of 0.05-0.15% of C, 0.10-0.40% of Si, 0.50-1.00% of Mn, 0.030% or less of P, 0.030% or less of S, 0.20-1.00% of Mo, 0.020-0.060% of Nb, 0.040-0.080% of V, 0.030-0.100% of sol. Al, 0.0005-0.0050% of B, 0.003-0.010% of N, 0-0.20% of Cu, 0-0.20% of Ni, 0-0.10% of Cr, and a balance of Fe and impurities, satisfies the formula (1): 0.060≤(51/93)Nb+V≤0.100 (1), and the formula (2): 0.50