A rotary compressor and a refrigerating cycle apparatus

Discharge outlet (22a) of the cylinder chamber (20a, 20b) to the inner diameter of the area A, the main bearing (16a) to the inner diameter dm, the inner diameter of the sub bearing (16b) of the discharge outlet (22b) disposed size DS is, in the formula (1) and (2) the establishment of at least one of the volume of the cylinder chamber (20a, 20b) is set to V, the main bearing (16a) of the discharge valve (23a) of the spring constant of the Km is, the one set up in the sub-bearing (16b) of the discharge valve (23b) when the spring constant Ks is set, the formula (3), (4) at least. Wherein, 4.6 × 10-3 ≦ dm / A ≦ 6.5 × 10-3 ...... (1); 4.6 × 10-3 ≦ ds / A ≦ 6.5 × 10-3 ...... (2); 1.2 × 10-4 ≦ km / V ≦ 3.5 × 10-4 ...... (3); 1.2 × 10-4 ≦ Ks / V ≦ 3.5 × 10-4 ...... (4).