Patent ID: 7566293

Claim:
A device for recirculating oil from the area of the end face (ST) of the barrel (WB) and the peripheral surface of the roll neck (WZ) of rolling mill rolls (W), which roll neck (WZ) is supported in the bearing of a bearing chock (LES), wherein a sealing race (DLR), which is arranged between the bearing elements and the end face (ST) of the roll barrel (WB), is mounted on the roll neck (WZ), and wherein a first conical ring body (KRK 1 ) with a conical outer surface and a cylindrical inner surface that is seated on the outer surface of the sealing race (DLR) and is sealed from said race, such that the inclination of the conical outer surface towards the end face (ST) of the barrel (WB) runs towards the roll axis (x-x), and a second conical ring body (KRK 2 ) that is rigidly mounted in the bearing housing and has a conical inner surface are provided, which conical inner surface is arranged some distance opposite the conical surface of the first conical ring body (KRK 1 ), such that the two conical surfaces form a hydraulic pump gap (PS) that conveys oil away from the end face (ST) of the roll barrel (WB), wherein an admission end of the pump gap (PS) that faces the roll barrel (WB) opens in an annular admission chamber (EK), which is formed by lateral surfaces of the first conical ring body (KRK 1 ), which run in the radial direction relative to the axis and inclined thereto, by the radial lateral surface of a flange-like annular shoulder (RA) of the second conical ring body (KRK 2 ), which radial lateral surface is arranged some distance opposite the lateral surfaces of the first conical ring body (KRK 1 ), and by an outer surface section of the sealing race (DLR 1 ).