The electric motor (11) can rotationally drive the intermediate rotation tube (10).

The motor is configured to rotatably drive the tool shaft unit and tool shaft unit is configured to support and rotatably drive the tool bit.

The at least one thermopile provides energy for driving the at least one motor for rotating the food holding member.

A two wheeled vehicle with a first wheel and a second wheel includes a first electrical motor operable to drivingly rotate the first wheel and a second electrical motor operable to drivingly rotate the second wheel.

A ceiling fan includes a motor for rotating blades.

The device is adapted for rotationally driving the spindle and the nut individually.

The image projecting device has a rotation region set for rotating a predetermined object image.

The invention relates to a design for a rotary drive for both a tool and a workpiece to be rotationally driven.

An actuator is coupled to the drive member for rotatably driving the drive member.

The internal combustion engine drives the worm for rotatably driving the wheel to drive the mechanism.

An inner rotation drive section (10) for rotationally driving the inner rotary shaft (22) is connected to the inner rotary shaft (22).

An outer rotation drive section (40) for rotationally driving the outer rotary shaft (2) is connected to the outer rotary shaft (2).

Each spindle is adapted to secure and rotate a cutting tool.

The rotation joint is provided with an actuator for rotating the lower leg link.

Further provided are a rotation restriction mechanism (15) which restricts the rod member (14) from rotating, and a rotation driving means (16) for driving the rotation of the aforementioned sleeve member (13).