Abstract: A fan clutch is provided to which a fan may be removably attached with the aid of a flange ring, the fan clutch having a housing that comprises a first front housing part and a second rear housing part to which the flange ring is attachable with the aid of connecting elements. The housing has circumferential attachment niches which are situated in an offset manner in the circumferential direction on both the front and the back of the housing and into which attachment tabs situated on the flange ring are insertable either from the front of the fan clutch or from the rear thereof.

Abstract: A fan clutch is provided to which a fan may be removably attached with the aid of a flange ring, the fan clutch having a housing that comprises a first front housing part and a second rear housing part to which the flange ring is attachable with the aid of connecting elements (8). The housing has circumferential attachment niches which are situated in an offset manner in the circumferential direction on both the front and the back of the housing and into which attachment tabs situated on the flange ring are insertable either from the from of the fan clutch or from the rear thereof.

Abstract: The invention relates to a fluid friction coupling comprising a drive shaft (2) and a drive disk (4) which is rotationally fixed thereon, in addition to a drive housing (5) which is rotationally arranged on the drive shaft (2). The drive disk forms a working area (7) and a storage area (9) enabling a fluidic connection for a viscous medium via a feed hole (11) and a return channel (8). The feed hole (11) is controlled by a valve lever (12) with an anchor plate (14) by means of an electromagnet (19) arranged on the near side of the coupling. According to the invention, the valve lever (12) is arranged between the drive disk (4) and the electromagnet (19) and the anchor plate (14) is arranged in the magnetic flow area of the electromagnet (19, 20).