A differential assembly is disclosed herein. The differential assembly includes a case, a weld ring and a ring gear. The ring gear and case may comprise dissimilar materials. The case may be overmolded onto the weld ring. The weld ring may be welded to the ring gear such that the ring gear is attached to the case.

A gear device includes an external gear, and an internal gear that meshes with the external gear. The external gear is formed of metal. The internal gear is formed of a carbon fiber reinforced resin.

A gear device includes an external gear, and an internal gear that meshes with the external gear. The external gear is formed of metal. The internal gear is formed of a carbon fiber reinforced resin.

A composite hybrid gear assembly includes a gear hub formed from a composite material and a gear head assembly. The gear hub includes a shaft region having an axially symmetrical external profile and a hub web region having a flared profile extending from the shaft region. The gear head assembly includes a head web region and a teeth region where the gear head assembly is fixed to the gear hub. Additionally, the composite hybrid gear assembly includes a first sleeve fixed to an external surface of the shaft region. An associated method of making a composite hybrid gear assembly is also provided.

A composite hybrid gear assembly includes a gear hub formed from a composite material and a gear head assembly. The gear hub includes a shaft region having an axially symmetrical external profile and a hub web region having a flared profile extending from the shaft region. The gear head assembly includes a head web region and a teeth region where the gear head assembly is fixed to the gear hub. Additionally, the composite hybrid gear assembly includes a first sleeve fixed to an external surface of the shaft region. An associated method of making a composite hybrid gear assembly is also provided.

A high torque sprocket includes a body defining an outer periphery and a hub section defining an inner surface for engaging a bushing. A continuous toothed structure is disposed on the outer periphery of the body, and a textile reinforcement embedded in the body adjacent the inner surface of the hub section. The body is formed of a castable polymer material. In some cases, one or two optional flanges are disposed on side(s) of the body immediately adjacent the continuous toothed structure, in some aspects, a textile reinforcement may be embedded in a surface of the flange(s) immediately adjacent the continuous toothed structure. In some aspects, the high torque sprocket further includes a textile reinforcement embedded in the continuous toothed structure outer surface, and the textile reinforcement is selected from nylon, cotton, aramid, PTFE, and mixtures thereof.

A high torque sprocket includes a body defining an outer periphery and a hub section defining an inner surface for engaging a bushing. A continuous toothed structure is disposed on the outer periphery of the body, and a textile reinforcement embedded in the body adjacent the inner surface of the hub section. The body is formed of a castable polymer material. In some cases, one or two optional flanges are disposed on side(s) of the body immediately adjacent the continuous toothed structure, in some aspects, a textile reinforcement may be embedded in a surface of the flange(s) immediately adjacent the continuous toothed structure. In some aspects, the high torque sprocket further includes a textile reinforcement embedded in the continuous toothed structure outer surface, and the textile reinforcement is selected from nylon, cotton, aramid, PTFE, and mixtures thereof.

A bull gear is provided for a reciprocating pump. The bull gear includes a hub extending around an axis of rotation of the bull gear. The bull gear includes a rim having a plurality of helical gear teeth extending along a circumference of the rim. The rim extends a width along the axis of rotation from a first side portion to a second side portion that is opposite the first side portion. The bull gear includes a web connecting the hub to the rim. The web extends a radial length from the first side portion of the rim to the hub.

Embodiments of the present disclosure relate to a gearbox housing. The gearbox housing has a housing body and an annular gear. The housing body comprises an annular support and a lateral portion provided at a side face of the annular support. The lateral portion has a hole formed thereon for an input shaft to pass through. The annular gear is provided inside of the housing body along a radial direction and adapted to couple to the annular support, wherein a plurality of teeth are circumferentially provided at an inner side of the annular gear. A gear wheel with an output shaft is adapted to couple to the plurality of teeth.

Embodiments of the present disclosure relate to a gearbox housing. The gearbox housing has a housing body and an annular gear. The housing body comprises an annular support and a lateral portion provided at a side face of the annular support. The lateral portion has a hole formed thereon for an input shaft to pass through. The annular gear is provided inside of the housing body along a radial direction and adapted to couple to the annular support, wherein a plurality of teeth are circumferentially provided at an inner side of the annular gear. A gear wheel with an output shaft is adapted to couple to the plurality of teeth.