Patent ID: 7360977

Claim:
A machine tool transmission in which at least one of force and torque is transmitted from an output shaft ( 3 ) of the transmission ( 1 ) directly to a spindle ( 15 ) via a sealed rotary feed-through ( 24 ), the spindle ( 15 ) having a cooling fluid passage and co-axially surrounding one end of the output shaft ( 3 ), the sealed rotary feed-through ( 24 ) being located between the output shaft ( 3 ) and the spindle ( 15 ) and serving as a transfer device for facilitating flow of a cooling fluid between the transmission output shaft ( 3 ) and the spindle ( 15 ), the sealed rotary feed-through ( 24 ) including a first gasket ( 16 ), on an engine facing side of the sealed rotary feed-through, which faces an engine when the transmission is installed, and a second gasket ( 17 ), on a spindle facing side of the sealed rotary feed-through, which faces the spindle ( 15 ) when the machine tool transmission is installed, wherein the gasket ( 16 ), on the engine facing side of the sealed rotary feed-through ( 24 ), is connected via a tube ( 18 ) with the output shaft ( 3 ), and the gasket ( 17 ) on the spindle facing side of the sealed rotary feed-through ( 24 ) is directly located radially within one of the spindle ( 15 ) and a connection part.