Abstract: A brushless synchronous motor includes a stator disposed about a rotational axis and defining radially inwardly extending teeth about which conductors are wound in a distributed winding layout to define multiple motor phases. Each tooth defines a shoe at a radially inner end spaced from a circumferentially adjacent shoe by a stator shoe gap. A rotor within the stator rotates relative to the stator about the rotational axis and includes a shaft and magnet tiles supported on the shaft and covered with a magnet tile retention sleeve. Each magnet tile is spaced from a circumferentially adjacent magnet tile by a magnet tile gap. The magnet tile gap tapers moving from a radially outer end to a radially inner end of the gap and a width of the gap at the radially outer end of the gap is less than or equal to a width of the stator shoe gap.

Abstract: A gear motor includes a motor having a housing with first and second endbells and a wall extending therebetween defining a housing interior and a stator and a rotor disposed within the housing interior. The rotor defines a tubular motor shaft extending through the first endbell. A gearhead is driven by the motor shaft and defines a gearhead output shaft coaxial with the motor shaft. A rod has a first end coupled to the gearhead output shaft and extends through a bore in the motor shaft. A magnetized disc is coupled to a second end of the rod and is disposed within the housing interior. A position sensor disposed outside of the housing interior generates signals responsive to rotation of the magnetized disc. The motor and gearhead output shafts may be supported on aligned bearings in the second endbell.

Abstract: A gear motor includes a motor having a housing with first and second endbells and a wall extending therebetween defining a housing interior and a stator and a rotor disposed within the housing interior. The rotor defines a tubular motor shaft extending through the first endbell. A gearhead is driven by the motor shaft and defines a gearhead output shaft coaxial with the motor shaft. A rod has a first end coupled to the gearhead output shaft and extends through a bore in the motor shaft. A magnetized disc is coupled to a second end of the rod and is disposed within the housing interior. A position sensor disposed outside of the housing interior generates signals responsive to rotation of the magnetized disc. The motor and gearhead output shafts may be supported on aligned bearings in the second endbell.