FIELD: mechanical engineering. SUBSTANCE: small width radial cuts are made in rim of one of train gears. Pockets for liquid lubricant are made on end face surfaces of each tooth. Spaces of pockets are covered by strips with channels for liquid lubricant at root of each tooth. Pockets are divided by partition with hole at head of tooth. EFFECT: increased load-carrying capacity and service life of gear train. 3 dwg
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