Nabtesco Corporation

Yoshiaki Makizoe

Kazuyoshi Makisumi

Yusuke Nakashima

Takahide Kumagai

John Verzemnieks

Hideshi Shimada

Mamoru Hagane

A power transmission pin relating to the present disclosure includes a shaft portion and an externally threaded portion configured to fixedly attach the shaft portion onto a speed changing mechanism, the externally threaded portion being formed on an end of the shaft portion in an axial direction, the externally threaded portion and the shaft portion being coaxially arranged. At least a surface of the shaft portion has higher hardness than the externally threaded portion.

Power transmission pin for speed changer, speed changer and method of manufacturing power transmission pin for speed changer

An eccentric oscillation gear device includes a casing, a first member supported by the casing via a first bearing, a second member supported by the casing via a second bearing, and a fastening portion fastening the first and second members in an axial direction of the casing. The fastening portion includes an internally threaded portion formed in the first member, and a fastener having an externally threaded portion. The fastener has a Rockwell hardness (HRC) of 44 or higher, and the internally threaded portion has a lower hardness than the fastener.

Eccentric oscillation gear device, robot, industrial machine and method of assembling eccentric oscillation gear device

A speed reducer with a falling-off prevention feature according to an aspect of the disclosure includes: a speed reducer for decelerating rotation from a drive source that generates a rotational force and outputting the decelerated rotation, the speed reducer being mounted to a robot; and a coupling member for coupling the speed reducer to the robot. The coupling member maintains coupling between the speed reducer and the robot irrespective of displacement of the speed reducer relative to the robot.

Transmission with falling-off prevention feature

One object is to provide a speed reducer that can absorb or relieve an impact acting thereon. A speed reducer of the present invention includes: a speed reducing unit a housing that houses the speed reducing unit and a shock absorbing means that allows the speed reducing unit to move with respect to the housing in a direction of a rotary shaft of the speed reducing unit.

Growing community of inventors

Tokyo, Japan

Yoshiaki Makizoe