A drive apparatus for sewing machines including a forepart and a motor shaft horizontally projecting out of the forepart is provided with a sleeve releasably secured to the motor shaft; a rotor disposed on the sleeve; and a motor assembly including a housing having an axial passage with the sleeve rotatably disposed through, an inner space disposed on an end of the housing proximate the forepart, and a stator set disposed in the inner space. The rotor is disposed in the inner space. The rotor, the sleeve, and the motor shaft are co-rotated.

A drive apparatus for sewing machines including a forepart and a motor shaft horizontally projecting out of the forepart is provided with a sleeve releasably secured to the motor shaft; a rotor disposed on the sleeve; and a motor assembly including a housing having an axial passage with the sleeve rotatably disposed through, an inner space disposed on an end of the housing proximate the forepart, and a stator set disposed in the inner space. The rotor is disposed in the inner space. The rotor, the sleeve, and the motor shaft are co-rotated.

A heat dissipation apparatus for a sewing machine including a forepart and a motor shaft horizontally projecting out of the forepart includes a sleeve releasably secured to the motor shaft and including a first fan mounted thereon; a stator seat including an axial channel with the sleeve rotatably disposed through, and a plurality of first air inlets; and a guide member fastened between the stator seat and the forepart and including a disc-shaped opening with the first fan rotatably disposed therein. In response to activating the first fan, air is drawn through the first air inlets and a gap between the stator seat and the guide member prior to exiting the forepart.

A heat dissipation apparatus for a sewing machine including a forepart and a motor shaft horizontally projecting out of the forepart includes a sleeve releasably secured to the motor shaft and including a first fan mounted thereon; a stator seat including an axial channel with the sleeve rotatably disposed through, and a plurality of first air inlets; and a guide member fastened between the stator seat and the forepart and including a disc-shaped opening with the first fan rotatably disposed therein. In response to activating the first fan, air is drawn through the first air inlets and a gap between the stator seat and the guide member prior to exiting the forepart.

A tufting machine comprises a needle bar and a needle bar drive mechanism for moving the needle bar towards and away from a backing material passed through a tufting zone by means of a backing material feed mechanism. The machine further comprises at least one controller and a cooling liquid system for cooling at least one controller, the cooling liquid system comprising at least one cooling member having a cooling liquid channel for the passage of a cooling liquid and being in heat transfer contact with at least a part of the electrical components of a controller.

A tufting machine comprises a needle bar and a needle bar drive mechanism for moving the needle bar towards and away from a backing material passed through a tufting zone by means of a backing material feed mechanism. The machine further comprises at least one controller and a cooling liquid system for cooling at least one controller, the cooling liquid system comprising at least one cooling member having a cooling liquid channel for the passage of a cooling liquid and being in heat transfer contact with at least a part of the electrical components of a controller.

A heat dissipation apparatus for a sewing machine including a forepart and a motor shaft horizontally projecting out of the forepart includes a sleeve releasably secured to the motor shaft and including a first fan mounted thereon; a stator seat including an axial channel with the sleeve rotatably disposed through, and a plurality of first air inlets; and a guide member fastened between the stator seat and the forepart and including a disc-shaped opening with the first fan rotatably disposed therein. In response to activating the first fan, air is drawn through the first air inlets and a gap between the stator seat and the guide member prior to exiting the forepart.

A heat dissipation apparatus for a sewing machine including a forepart and a motor shaft horizontally projecting out of the forepart includes a sleeve releasably secured to the motor shaft and including a first fan mounted thereon; a stator seat including an axial channel with the sleeve rotatably disposed through, and a plurality of first air inlets; and a guide member fastened between the stator seat and the forepart and including a disc-shaped opening with the first fan rotatably disposed therein. In response to activating the first fan, air is drawn through the first air inlets and a gap between the stator seat and the guide member prior to exiting the forepart.

A drive apparatus for sewing machines including a forepart and a motor shaft horizontally projecting out of the forepart is provided with a sleeve releasably secured to the motor shaft; a rotor disposed on the sleeve; and a motor assembly including a housing having an axial passage with the sleeve rotatably disposed through, an inner space disposed on an end of the housing proximate the forepart, and a stator set disposed in the inner space. The rotor is disposed in the inner space. The rotor, the sleeve, and the motor shaft are co-rotated.

A drive apparatus for sewing machines including a forepart and a motor shaft horizontally projecting out of the forepart is provided with a sleeve releasably secured to the motor shaft; a rotor disposed on the sleeve; and a motor assembly including a housing having an axial passage with the sleeve rotatably disposed through, an inner space disposed on an end of the housing proximate the forepart, and a stator set disposed in the inner space. The rotor is disposed in the inner space. The rotor, the sleeve, and the motor shaft are co-rotated.