A device for capturing and transmitting data of a bearing of a steel mill or rolling mill includes a sensor with a data processing unit arranged in a bearing housing capturing and storing data of a bearing. A data transmission unit in the bearing housing wirelessly transmits data of the sensor to a remote receiver. An energy receiving unit in the bearing housing receives energy wirelessly and transmits it to the data transmission unit and the data processing unit. An energy source with an energy transmitting unit arranged outside the bearing housing supply the energy unit wirelessly. The energy transmitting unit is covered by the bearing housing and is arranged on or in a structural part which adjoins the bearing housing and is part of the supporting structure of mill and remains on the supporting structure of the mill when the bearing housing is removed for maintenance purposes.

A bearing housing is provided with a cooling channel in at least part of the circumference around the bearing. The cooling channel is provided with a flow guide member at least in part of its flow section to construct a tortuous passage whose flow distance is longer than the corresponding circumferential length of the flow section. On the basis of the above-mentioned bearing housing, the present invention also provides a bearing housing unit, a continuous casting roll line and a continuous casting machine that use the bearing housing. The above-mentioned bearing housing adopts an optimized cooling channel design, which can obtain a better cooling effect without changing other structures of the bearing housing. Therefore, it is particularly suitable for upgrading existing equipment and has a huge cost advantage and a wide range of application prospects.

A seal (100) for sealing a lubricant space prevents lubricant (320) escaping. A rolling stand has a seal of this kind. The seal (100) is made at least partially from elastic material. To enable a pressing force FR, with which the bottom face (112) of the seal is pressed against an opposite contact surface (218), for example of a roll journal (212), to be variably set, the seal (100) has at least two cavities, which are separated from each other in the circumferential direction and which are open towards the lubricant space of the bearing.

A device for capturing and transmitting data of a bearing of a steel mill or rolling mill includes a sensor with a data processing unit arranged in a bearing housing capturing and storing data of a bearing. A data transmission unit in the bearing housing wirelessly transmits data of the sensor to a remote receiver. An energy receiving unit in the bearing housing receives energy wirelessly and transmits it to the data transmission unit and the data processing unit. An energy source with an energy transmitting unit arranged outside the bearing housing supply the energy unit wirelessly. The energy transmitting unit is covered by the bearing housing and is arranged on or in a structural part which adjoins the bearing housing and is part of the supporting structure of mill and remains on the supporting structure of the mill when the bearing housing is removed for maintenance purposes.

A device for measuring a wear condition on the plain bearing surface of a sensor plate comprises a measuring apparatus, which has wear sensors of a sensor plate integrated into the plain bearing surface. To capture the material removal at the plain bearing surface due to wear an evaluation apparatus is in signal connection with the wear sensors. The evaluation apparatus is designed, with respect to programming, in such a way that a change, in particular an increase, in the ohmic resistance value of the electrical conductor of a certain wear sensor can be captured in dependence on its own material removal, in order to thereby ensure that the amount of the material removal at the plain bearing surface and/or the remaining thickness of the plain bearing surface at the location of said certain wear sensor can be inferred from the detected change in the resistance value.

A device for measuring a wear condition on the plain bearing surface of a sensor plate comprises a measuring apparatus, which has wear sensors of a sensor plate integrated into the plain bearing surface. To capture the material removal at the plain bearing surface due to wear an evaluation apparatus is in signal connection with the wear sensors. The evaluation apparatus is designed, with respect to programming, in such a way that a change, in particular an increase, in the ohmic resistance value of the electrical conductor of a certain wear sensor can be captured in dependence on its own material removal, in order to thereby ensure that the amount of the material removal at the plain bearing surface and/or the remaining thickness of the plain bearing surface at the location of said certain wear sensor can be inferred from the detected change in the resistance value.

A roller for a roller bearing has a first end surface and a second end surface and a rolling surface between the first and second end surfaces. The first end surface has an at least partially ground profile having a non-constant curvature such as a logarithmic profile. Also, an assembly including a grinding tool and a roller with an end surface having a ground non-constant curvature.

A bearing housing is provided with a cooling channel in at least part of the circumference around the bearing. The cooling channel is provided with a flow guide member at least in part of its flow section to construct a tortuous passage whose flow distance is longer than the corresponding circumferential length of the flow section. On the basis of the above-mentioned bearing housing, the present invention also provides a bearing housing unit, a continuous casting roll line and a continuous casting machine that use the bearing housing. The above-mentioned bearing housing adopts an optimized cooling channel design, which can obtain a better cooling effect without changing other structures of the bearing housing. Therefore, it is particularly suitable for upgrading existing equipment and has a huge cost advantage and a wide range of application prospects.

A roller arrangement includes at least three parallel-axis rollers with a respective nip formed between adjacent rollers. Each of the rollers having a journal at both axial ends and is pivot-mounted via the respective roller journals. At least two bearings being arranged axially adjacent to one another at least on both of a first roller journal of a first, second and third adjacent rollers. A compressive stress is generated between an inner bearing on the first roller journal of the first roller and an outer bearing on the first roller journal of the second roller and a tensile stress is generated between an outer bearing on the first roller journal of the first roller and an inner bearing on the first roller journal of the second roller or vice versa. Similarly, compressive and tensile stresses are generated between the bearings on respective journals of the second and third adjacent rollers.

A roll stand for the rolling of rolling stock, especially metal products. The roll stand includes at least two chocks for mounting at least one roll, the roll being rotatably mounted in the chocks by its two cylindrical roll necks. A cylindrical neck bushing is arranged on the roll neck with radial play. A rotationally fixed annual axial bearing is axially offset from the neck bushing. The bearing arrangement for the roll necks in the chocks is formed as a plain bearing, preferably a hydrodynamic oil film bearing. When subjected to a load in a rolling process, the neck bushing moves and deforms not only in the radial direction, but also in the axial direction.