Abstract: A method and apparatus for contactlessly determining the temperature of stranded and/or granular objects in a stream of conveyed material, in which infrared sensors are used to capture the radiation field of the stream of conveyed material flowing past against a background, and the temperature of the stranded or granular objects is determined from the measurement signal from the infrared sensors, wherein the temperature of the background, against which the stream of conveyed material to be measured flows past, is varied in terms of time and/or location by means of a temperature control apparatus, wherein degrees of fluctuation are determined from the measurement signal from the infrared sensors for different background temperatures and the position of a minimum fluctuation is determined from these degrees of fluctuation, wherein the object temperature is determined from the value of the measurement signal at the time/location of the minimum fluctuation.

Abstract: The invention concerns a roller arrangement for a product to be coated in a molten metal bath, having a roller (1) which rotates in the metal bath and is retained at the ends rotatably on support arms (2) by way of rolling bearings (4), the rolling bearings (4) each being arranged in a bearing housing (5) sealed with respect to the metal bath (M), which is characterized in that in order to seal the bearing housing (5) with respect to the roller (1), sealing surfaces (15, 16) extending transversely to the roller axis (X) are configured [on a radially projecting shoulder (14) of the roller (1)] and on the bearing housing (5), and are retained under pressure against one another or against an interposed seal element (20).