PURPOSE: To facilitate mounting/dismounting onto a machinery by encapsulating a planetary frictional mechanism in a casing and constructing a first shaft coupling section coupled with a sun roller to have same dimensions as those of a second shaft coupling section coupled with a rotary member.
CONSTITUTION: A planetary frictional mechanism is encapsulated in a casing 10, and rotary input from a first shaft coupling section 32 causes rolling of a planetary roller 40 between a sun roller 31 and a fixed ring 20 and producing rotation of reduced speed which is taken out from a second shaft coupling section 60 through a rotary member 50. First and second shaft coupling sections 32, 60 are formed to have same dimensions and supported on the casing 10 through bearings A1, A2 while being sealed with seal rings B1, B2, and amplified rotation can be outputted when input and output are reversed. Consequently, mounting of power transmission onto a machinery can be facilitated and the power transmission can be mounted reversely, when required.
CHIKAMORI AKIRA
KATO KUNIHIKO
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