Canned linear motor armature and canned linear motor

There are provided a canned linear motor armature and a canned linear motor in which the interface is reduced by decreasing the number of components of an armature winding section, reliable casting and filling can be realized without entraining a bubble by employing low viscosity resin, thereby enhancing workability of casting and filling work, and long term insulation reliability of armature winding is ensured for coolant. In the canned linear motor armature, a coil group consisting of a plurality molded coils (71c) is sandwiched by a connection substrate (71a) and a bathtub-shaped resin frame (71b) and cast with resin. The connection part (71e) is cast or filled with resin having viscosity of 30 Pa s or less under working temperature, an available time of 0.1-24 hours and a modulus of elasticity of 3,000 MPa or less.