Abstract: The disclosure relates to a high-speed radial fan and to a rotor assembly (10) for a high-speed radial fan, comprising a bearing tube (20) which is axially open in the interior and in which a shaft (40) carrying a fan wheel (30) is mounted with a rotor (50), wherein the rotor (50) of the rotor assembly (10) is mounted in a cylindrical separating can (3).

Abstract: The disclosure relates to a high-speed radial fan and to a rotor assembly (10) for a high-speed radial fan, comprising a bearing tube (20) which is axially open in the interior and in which a shaft (40) carrying a fan wheel (30) is mounted with a rotor (50), wherein the rotor (50) of the rotor assembly (10) is mounted in a cylindrical separating can (3).

Abstract: The disclosure relates to a rotor assembly (10) having an integrated heat conducting channel for a high-speed radial ventilator, comprising a bearing tube (20) which is axially open on the inside and in which a shaft (40) that supports a ventilator wheel (30) is mounted on bearings (24, 25). Shaft comprises a rotor (50) of a canned motor, wherein the bearing tube (20) has an outwardly protruding radial projection (21), a heat dissipation portion (23) of which at least partially extends beyond the outer circumference (31) of the ventilator wheel (30), and which provides an integrated heat conducting channel that extends from the bearing (24) to the heat dissipation portion (23).

Abstract: The disclosure relates to a rotor assembly (10) for a high-speed radial fan, comprising an inner, axially open bearing tube (20) in which a shaft (40), carrying a fan wheel (30), is mounted, with a rotor (50) of a canned motor. The bearing tube (20) comprises an outwardly protruding radial projection (21) that extends at least partially beyond the outer circumference (31) of the fan wheel (30).