A scroll compressor comprising: a compression mechanism unit that compresses a refrigerant and includes a fixed scroll, an orbiting scroll, and a rotary shaft that has an eccentric shaft to drive the orbiting scroll to orbit; a motor mechanism unit that drives the compression mechanism unit; and a hermetic container accommodating the compression mechanism unit and the motor mechanism unit, wherein the fixed scroll includes a fixed scroll end plate having a disk shape and a fixed spiral wrap erecting from the fixed scroll end plate, the orbiting scroll includes an orbiting scroll end plate having a disk shape, an orbiting spiral wrap erecting from one surface of the orbiting scroll end plate, a boss portion having a cylindrical shape and disposed on another surface of the orbiting scroll end plate, and an orbiting bearing that is fit in the boss portion and receives the eccentric shaft, the fixed spiral wrap and the orbiting spiral wrap mesh with each other to form a plurality of compression chambers between the fixed spiral wrap and the orbiting spiral wrap, the orbiting scroll is pressed against the fixed scroll by a back pressure from a side of the other surface of the orbiting scroll end plate, the orbiting bearing has a first end on a side of the orbiting scroll end plate and a second end on an opposite side of the first end, the eccentric shaft being inserted in the orbiting bearing from the second end, and the scroll compressor is configured that an inner wall of the orbiting bearing has a first tapered shape of which diameter increases from a first end side toward a second end side or an outer periphery of the eccentric shaft inserted in the orbiting bearing has a second tapered shape of which diameter decreases from the first end side toward the second end side, characterized in that in a sectional view in a plane including an axis of the orbiting bearing, the first tapered shape or the second tapered shape is configured that an angle θ between a surface of the first tapered shape or the second tapered shape and the axis is larger than an angle at which the rotary shaft is allowed to tilt, and satisfies a relational expression expressed below where L is a distance between the first end of the orbiting bearing and a start point of the first tapered shape or the second tapered shape, d is a diameter of the eccentric shaft, and D is a diameter of the inner wall of the orbiting bearing, L tan θ + d / cosθ < D. a compression mechanism unit that compresses a refrigerant and includes a fixed scroll, an orbiting scroll, and a rotary shaft that has an eccentric shaft to drive the orbiting scroll to orbit; a motor mechanism unit that drives the compression mechanism unit; and a hermetic container accommodating the compression mechanism unit and the motor mechanism unit, wherein the fixed scroll includes a fixed scroll end plate having a disk shape and a fixed spiral wrap erecting from the fixed scroll end plate, the orbiting scroll includes an orbiting scroll end plate having a disk shape, an orbiting spiral wrap erecting from one surface of the orbiting scroll end plate, a boss portion having a cylindrical shape and disposed on another surface of the orbiting scroll end plate, and an orbiting bearing that is fit in the boss portion and receives the eccentric shaft, the fixed spiral wrap and the orbiting spiral wrap mesh with each other to form a plurality of compression chambers between the fixed spiral wrap and the orbiting spiral wrap, the orbiting scroll is pressed against the fixed scroll by a back pressure from a side of the other surface of the orbiting scroll end plate, the orbiting bearing has a first end on a side of the orbiting scroll end plate and a second end on an opposite side of the first end, the eccentric shaft being inserted in the orbiting bearing from the second end, and the scroll compressor is configured that an inner wall of the orbiting bearing has a first tapered shape of which diameter increases from a first end side toward a second end side or an outer periphery of the eccentric shaft inserted in the orbiting bearing has a second tapered shape of which diameter decreases from the first end side toward the second end side, characterized in that in a sectional view in a plane including an axis of the orbiting bearing, the first tapered shape or the second tapered shape is configured that an angle θ between a surface of the first tapered shape or the second tapered shape and the axis is larger than an angle at which the rotary shaft is allowed to tilt, and satisfies a relational expression expressed below where L is a distance between the first end of the orbiting bearing and a start point of the first tapered shape or the second tapered shape, d is a diameter of the eccentric shaft, and D is a diameter of the inner wall of the orbiting bearing, L tan θ + d / cosθ < D.