Patent ID: 7611169

Claim:
A device for coupling a coolant supply to a roller, the roller being mounted in a pillow block by means of roller bearings via a roller journal and being able to be supplied with a coolant via an axial roller borehole guided through the roller journal, having a sealing unit, which can be fixed to the roller journal to couple it to the roller borehole in a pressure-tight manner; and a pillow block cover, which can be fixed to the pillow block in order to cover the roller bore and which has at least first and second pillow block cover coolant ducts connectable to the coolant supply; wherein an insert, which supports the sealing unit in the fitted state, is insertable into the pillow block cover; wherein the insert has a first coolant duct and a second coolant duct which, in the fitted state, are coupled to the first and second pillow block cover coolant ducts in the pillow block cover, respectively; and wherein said first coolant duct and said second coolant duct of said insert, in order to couple the pillow block coolant ducts via the sealing unit in a pressure-tight manner to the roller bore, are coupled in the fitted state to the sealing unit.