Bearing arrangement for a wind turbine and wind turbine

A bearing arrangement for a wind turbine, comprising:

• a bed frame,
• a shaft configured for connecting a rotor with a generator of the wind turbine,
• a front bearing and a rear bearing both supporting the shaft rotatably around a shaft axis,
• a front bearing housing supporting the front bearing, the front bearing housing having one or more feet directly connected to the bed frame,
• a rear bearing housing supporting the rear bearing, the rear bearing housing having one or more feet directly connected to the bed frame, and
• a stiffening element connecting one of the feet of the front bearing housing and one of the feet of the rear bearing housing, wherein the stiffening element extends along an extension direction from a front portion of the stiffening element to a rear portion of the stiffening element, the stiffening element being connected at its front portion to the one foot of the front bearing housing and being connected at its rear portion to the one foot of the rear bearing housing,
• wherein the stiffening element includes a middle portion between the front portion and the rear portion along the extension direction, and wherein a cross-section of the middle portion continuously varies along the extension direction such that an area of the cross-section is smaller than an area of a cross-section at the front portion of the stiffening element and an area of a cross-section at the rear portion of the stiffening element.