FIELD: machine building.
SUBSTANCE: proposed bed comprises frame (1) with vertical cage (2) arranged above the frame. Said frame and said cage are hollow, their cavities being communicated via through hole (10) made in separation wall (11) separating cage cavity (9) from frame cavity (4). Frame end walls have first and second through coaxial holes (5) and (6). Separation wall has first through channel (12) with inlet located on separation wall surface inside the vertical cage while outlet is located on locating surface of the frame first through hole.
EFFECT: ruled out lubricant inside vertical frame.
11 cl, 4 dwg
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