A hollow rack bar and a method of manufacturing the hollow rack bar are provided. The hollow rack bar includes a hollow blank pipe portion having a uniform wall thickness, and a rack toothed portion. The rack toothed portion includes teeth, a flat portion having a flat surface and arranged side by side with the teeth in a direction along a center axis of the blank pipe portion, and a slanted portion provided at an end of the flat portion with respect to a direction perpendicular to the center axis and arranged to be lower than the flat portion. A length of the slanted portion projected on a straight line perpendicular to the center axis and parallel to the surface of the flat portion is longer than zero and equal to or shorter than the wall thickness of the blank pipe portion.

A drive gear for a generally cylindrical imaging component. The drive gear includes a body for engaging the generally cylindrical imaging component; a cylindrical shaft attached to the body, the cylindrical shaft having an end surface; and lobes extending longitudinally outward from the end surface.

Apparatus and associated methods relate to a modular cartridge turret assembly system for quickly exchanging modular cartridges to interact with a ring gear. A modular cartridge may be a brake cartridge, which when inserted into a modular cartridge turret assembly, operably engages with the ring gear to inhibit the rotation of a turret. In an illustrative example, the brake cartridge, when inserted, may prevent damages and injuries caused by the rotation of the turret during transportation. In an exemplary embodiment, the modular cartridge turret assembly system may include a locking mechanism to secure the modular cartridge within the modular cartridge turret assembly. The locking mechanism may safeguard that the brake cartridge remains within the modular cartridge turret assembly system during turbulent situations caused by environmental conditions.

The technology disclosed herein can include a motor unit having a motor with a motor gear to rotate a drive shaft and a drive gear. A manual input shaft can also be configured to transmit rotation to the drive shaft. The motor can have a central axis that forms an angle of less than 90 degrees with a plane substantially defined by an outer surface of a gear box coupled to the motor. A mounting bracket is configured to allow mechanical communication between the motor unit and an internal ring gear. The internal ring gear can be mounted to a vehicle and a turret can be pivotably disposed within the internal ring gear. A motor unit is mounted on the turret and a drive gear is rotatably mounted on the motor unit and in direct engagement with the internal ring gear.

A wave generator of a strain wave gearing has a plug, a wave generator bearing mounted to an outer peripheral surface of the plug, an input shaft protruding from the center of the plug to a first side running along a center axis, and a bearing arrangement on which a support bearing supporting the input shaft is arranged. Relative to an outer ring end surface of the wave generator bearing that faces the first side, a center-side plug end surface of a plug end surface facing the same direction is in a position withdrawn from the first side toward the opposite direction. The bearing arrangement is provided between the center-side plug end surface and the outer ring end surface encircling the input shaft. The input shaft can be fitted within the width dimension of the wave generator, and a strain wave gearing having a short axial length can be achieved.

A method of manufacturing a bar member including a pipe and metal members includes: forming a core member including a metal ring having an outer peripheral face subjected to face roughening and a mandrel; winding glass fibers around the outer peripheral face; winding a carbon fiber prepreg around the core member; forming the pipe externally fitted and fixed to the outer peripheral face by baking and curing the carbon fiber prepreg; pulling the mandrel out of the pipe; and screwing together the metal members and the metal ring.

First and second external tooth gear parts of a strain wave gearing are bent in an elliptic shape by a wave generator to engage with first and second internal tooth gears, respectively. The first and second external tooth gear parts are bent so as to have elliptic shapes the phases of which are rotated 90 degrees from each other about a rotational center line. A coupling external tooth gear part that maintains a circular cross-sectional shape which does not deform is formed in between the first and second external tooth gear parts. The coupling external tooth gear part is maintained so as to be coupled with a coupling internal tooth gear in an engaged manner. The strain wave gearing has high engagement rigidity and is capable of transmitting large torque.

A drive gear for a generally cylindrical imaging component. The drive gear includes a body for engaging the generally cylindrical imaging component; a cylindrical shaft attached to the body, the cylindrical shaft having an end surface; and lobes extending longitudinally outward from the end surface.

A circular wave drive system, and a method for use of a circular wave drive, are provided. In one embodiment, a circular wave drive is provided, the circular wave drive comprising: a substantially enclosed housing having a chamber therein, a ring-shaped wheel residing in the chamber, a wave generator having a wheel-driving portion that is oriented within the hollow central portion of the ring-shaped wheel; and an output element having a wheel-driven portion that is oriented within the hollow central portion of the ring-shaped wheel opposite the wheel-driving portion of the wave generator.

A tapping tool is mountable on an adapter for tapping. The adapter includes a ring gear in which the tapping tool is mountable; and a gear holder in which the ring gear is disposed and which is mountable on a turret of a turret punch press so as to locate the disposed ring gear at a position corresponding to a punch mounting section formed in advance in the turret. The tapping tool includes a cylindrical body and a rotating body.