REFRIGERANT COMPRESSOR AND REFRIGERATION/COLD STORAGE APPLIANCE IN WHICH SAME IS USED

Inside a sealed container (101) of a refrigerant compressor (100), lubricating oil (103) having a kinematic viscosity at 40 DEG C of 0.1 mm /S to 5.1 mm /S is stored, and an electric element (106)and a compression element (107) are accommodated. The compression element (107) is provided with, as a shaft part, a crankshaft (108) comprising a main shaft (109) and an eccentric shaft (110), and as bearing parts, a main bearing (114) that axially supports the main shaft (109) and an eccentric bearing (119) that axially supports the eccentric shaft (110). At least one surface of the main shaft(109) and the eccentric shaft (110) is subjected to a surface treatment, e.g., formation of an oxide film, having a hardness equal to or greater than that of a bearing part (the main bearing (114) orthe eccentric bearing (119)). Satisfactory reliability in sliding parts can thereby be achieved even if lubricating oil having lower viscosity is used. 一种制冷压缩机(100)，在其密封容器(101)的内部储存具有在40℃下具有动力粘度为0.1至5.1mm/S的润滑油(103)，且容纳电气组件(106)和压缩