Abstract: A motor includes a motor body, a first cover covering at least one part of the motor body on the radial outer side of the motor body, and a second cover covering at least one part of the motor body on one axial side and the radial outer side of the motor body. The first and second covers make contact on the radial outer side of the motor body. The second cover includes first and second parts, the first part is in a disk shape, the second part is located on the radial outer side of at least one part of the first part and includes a wall part and an eave part, the wall part is formed in the axial direction, and the eave part is formed in the radial direction from one axial end of the radial outer side of the wall part.

Abstract: A deceleration device includes a reduction assembly that reduces speed, a motor attached to the reduction assembly, the motor being rotatable about a central axis line, and a heat insulator having a heat conduction coefficient of about 0.04 W/mK or less, the heat insulator being positioned between the motor and the reduction assembly. A surface temperature of an exposed portion of the motor is maintained at a low level, with a simple structure, that prevents burns to human skin in contact with the motor.

Abstract: A motor includes a motor body, a first cover covering at least one part of the motor body on the radial outer side of the motor body, and a second cover covering at least one part of the motor body on one axial side and the radial outer side of the motor body. The first and second covers make contact on the radial outer side of the motor body. The second cover includes first and second parts, the first part is in a disk shape, the second part is located on the radial outer side of at least one part of the first part and includes a wall part and an eave part, the wall part is formed in the axial direction, and the eave part is formed in the radial direction from one axial end of the radial outer side of the wall part.

Abstract: A deceleration device includes a reduction assembly that reduces speed, a motor attached to the reduction assembly, the motor being rotatable about a central axis line, and a heat insulator having a heat conduction coefficient of about 0.04 W/mK or less, the heat insulator being positioned between the motor and the reduction assembly. A surface temperature of an exposed portion of the motor is maintained at a low level, with a simple structure, that prevents burns to human skin in contact with the motor.