FIELD: mechanical engineering. SUBSTANCE: proposed bearing is used for units performing nutation motion, such as high- intensity grinding units including grinding chamber; block bearing is provided with pairs of supporting antifriction surfaces. Each pair of contact trajectories described by pairs of supporting surfaces has similar ratio of trajectory length on fixed supporting surface to trajectory length on supporting surface performing nutation motion. EFFECT: enhanced efficiency and reliability at low losses of energy. 15 cl, 7 dwg
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