FIELD: mechanical engineering.
SUBSTANCE: invention relates to a device for supplying and / or removing a cooling medium to a roller, comprising a journal mounted with a support in a bearing bracket for rotation, and a side recess extending in the axial direction, and at least one roller cooling channel configured to pass on it the cooling medium. The device contains at least one channel for the cooling medium, made with possibility of fluid connection from the side of the journal with the roller cooling channel, and a sealing unit for sealing the fluid connection between the coolant channel and the roller cooling channel, containing an internal unit and an external unit. The inner assembly contains a hollow cylindrical element inserted into the side recess of the journal. In the axial direction, the hollow cylindrical element on the outside of the trunnion is flangeless.
EFFECT: device has a compact design, can be used with trunnions of small diameters and improves maintainability of the roller.
15 cl, 2 dwg
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