Abstract: A boat drive is provided for driving a water vehicle. The boat drive includes a drive housing made from a first metallic material and a propeller shaft made from a second metallic material. Moreover, the propeller shaft is designed to receive a drive propeller and the propeller shaft is mounted in the drive housing. In addition, a propeller shaft isolator is provided to electrically isolate the propeller shaft from the drive housing.

Abstract: A shaft profile is provided for an outboard drive. The shaft profile includes a base body extending along a longitudinal axis, the base body including a receiving space configured to receive a shaft of the outboard drive; and at least three support ribs extending in a direction of the longitudinal axis and configured to radially guide the shaft, the at least three support ribs arranged on an inner side of the receiving space.

Abstract: A rear cap is provided for forming a component of a housing of a drive unit. The rear cap includes a cover section that closes the housing at a rear and includes a propeller shaft opening that defines an axial direction and through which a propeller shaft of the drive unit is guided out of the housing; and a hollow-cylindrical mounting section that, as seen in the axial direction, is arranged on a side facing away from the propeller shaft opening. The mounting section has a cylindrical mounting surface with a mounting thread, such that the rear cap is configured to be screwed onto a corresponding housing-side thread of the housing.

Abstract: A boat drive is provided for driving a boat. The boat drive includes a motor nacelle with a housing. At least one attachment retainer is provided on the housing for receiving an attaching part in a form-fitting manner.

Abstract: A boat drive is provided for driving a water vehicle. The boat drive includes a drive housing made from a first metallic material and a propeller shaft made from a second metallic material. Moreover, the propeller shaft is designed to receive a drive propeller and the propeller shaft is mounted in the drive housing. In addition, a propeller shaft isolator is provided to electrically isolate the propeller shaft from the drive housing.

Abstract: An underwater propulsion unit is provided for an outboard motor or a pod drive. The underwater propulsion unit includes a plastic housing designed for water to flow around, and a metal housing in which an electrical drive is received. The electrical drive is received in the metal housing so as to be sealed off from the surroundings in a watertight manner, and the metal housing is arranged inside the plastic housing.

Abstract: The present disclosure relates to a boat drive for driving a boat, comprising a drive unit comprising an electric motor and a mounting connected to the drive unit for connecting the boat drive to the boat, wherein the mounting is provided for distancing the drive unit from a hull of the boat, wherein a decoupling arrangement for decoupling of oscillations (S) generated in the drive unit is arranged between the drive unit and the mounting.

Abstract: The present disclosure relates to a boat drive for driving a boat, comprising a drive unit comprising an electric motor and a mounting connected to the drive unit for connecting the boat drive to the boat, wherein the mounting is provided for distancing the drive unit from a hull of the boat, wherein a decoupling arrangement for decoupling of oscillations (S) generated in the drive unit is arranged between the drive unit and the mounting.

Abstract: A boat drive for a boat having a boat hull with a bottom. The boat drive includes an underwater pod; an electric motor disposed in the underwater pod, the electric motor driving, via a drive shaft, a propeller attached to the underwater pod; and an electrical supply line for supplying energy to the electric motor. The boat drive further includes an inner tube connected to the underwater pod and displaceably disposed in an outer tube, wherein the electrical supply line is routed through the inner tube. The boat drive further includes a mounting body attachable to the bottom of the boat hull, wherein the outer tube is passed through the mounting body. At least one annular sealing element is disposed between the inner and outer tubes, wherein the at least one annular sealing element seals the inner tube and the outer tube in a radial direction relative to the longitudinal axis of the inner tube.