A method of producing a drum including providing at least one source of at least one material, producing a preform from the at least one material, bending edges of the preform into a rolled preform and joining the edges to form a tubular member, performing an expansion operation and/or a contraction operation on the tubular member to achieve at least one desired diameter of the drum, heat-treating of the tubular member, forming a plurality of engagement elements in the tubular member, machining the tubular member, heat-treating the drum to achieve a desired hardness, assembling at least one secondary component with the tubular member, and balancing the drum.

A method of producing a drum including providing at least one source of at least one material, producing a preform from the at least one material, bending edges of the preform into a rolled preform and joining the edges to form a tubular member, performing an expansion operation and/or a contraction operation on the tubular member to achieve at least one desired diameter of the drum, heat-treating of the tubular member, forming a plurality of engagement elements in the tubular member, machining the tubular member, heat-treating the drum to achieve a desired hardness, assembling at least one secondary component with the tubular member, and balancing the drum.

The invention relates to a counter for coupling to a measuring mechanism of a fluid meter, wherein an output of measuring mechanism gear is in operative engagement with a gear on the side of the counter, the gear on the counter being designed to adapt to the rotational direction of the measuring mechanism by means of a change wheel. The invention also relates to a counter, which can be connected to a modular base plate system via a mechanical interface, wherein the base plates of this system can be designed having differently arranged detent or engagement elements.

A spur gear includes a radially outer, spur-cut gear rim, a radially inner hub, and a rotationally symmetrical radial connecting structure which integrally connects the gear rim to the hub. The radial connecting structure has mutually spaced struts, which extend between the hub and the gear rim, and axial perforations or holes, which are situated between the struts. The radial connecting structure has a disk-shaped base body, through which the axial holes pass and which has an axial front side and an axial rear side, with the struts being situated on the front side.

A spur gear includes a radially outer, spur-cut gear rim, a radially inner hub, and a rotationally symmetrical radial connecting structure which integrally connects the gear rim to the hub. The radial connecting structure has mutually spaced struts, which extend between the hub and the gear rim, and axial perforations or holes, which are situated between the struts. The radial connecting structure has a disk-shaped base body, through which the axial holes pass and which has an axial front side and an axial rear side, with the struts being situated on the front side.

A method for producing a sintered component, in particular an annular sintered component, with a toothing, having teeth with tooth roots, tooth tips and tooth flanks, includes the steps of pressing a powder to form a green compact, sintering the green compact, and hardening the sintered component, wherein after sintering, the tooth flanks and possibly the tooth tips are post-compacted and subsequently undergo post-processing by machining, and wherein a transition region between the tooth flanks and the tooth roots has an undercut design, and post-compaction of the tooth flanks is carried out only up to this transition region.

A method for producing a sintered component, in particular an annular sintered component, with a toothing, having teeth with tooth roots, tooth tips and tooth flanks, includes the steps of pressing a powder to form a green compact, sintering the green compact, and hardening the sintered component, wherein after sintering, the tooth flanks and possibly the tooth tips are post-compacted and subsequently undergo post-processing by machining, and wherein a transition region between the tooth flanks and the tooth roots has an undercut design, and post-compaction of the tooth flanks is carried out only up to this transition region.

A resin gear includes an annular metal bush, an annular resin member provided around the metal bush and having a tooth profile formed in an outer peripheral portion, and an elastic member provided between the metal bush and the resin member. The elastic member has a first overhanging portion overhanging one end surface of the metal bush and one end surface of the resin member outward in an axial direction of the resin gear.

A resin gear includes an annular metal bush, an annular resin member provided around the metal bush and having a tooth profile formed in an outer peripheral portion, and an elastic member provided between the metal bush and the resin member. The elastic member has a first overhanging portion overhanging one end surface of the metal bush and one end surface of the resin member outward in an axial direction of the resin gear.

Gear drive systems used with a camera comprise a housing with an electric drive gear disposed outside of the housing. A host gear is engaged with the drive gear and is rotatably disposed on a stationary shaft extending from the housing. An adapter is attached to the host gear and extends axially outwardly therefrom. A secondary gear is attached to the adapter and comprises a plurality of teeth disposed along an outside diameter. The secondary gear is releasably attached to the adapter by retaining elements and is fixed rotatably to the adapter by registration elements. The secondary gear is attached to the adapter by a push on snap-fit, and is removed from the adapter by being pulled off, thereby avoiding the need for tools to interchange a secondary gear having a desired configuration of teeth to engage a camera optical adjustment element such as a lens ring.