Protection device with electrical conductivity

The invention relates to a protective device (1) for reducing induced electric voltages and / or to the potential equalization in a rolling bearing (10) with an electrically conductive bridge member (2), wherein at least one fastening region (3) of the bridge element (2) for connection to a first bearing ring (4) is material and / or geometric prepared and connected with an electrically conducting manner to the bridge element (2) sliding member (5). According to the invention, the sliding element (5) is electrically conductive and for sliding contact with a surface (6) of a relative to the first bearing ring (4) rotatable second bearing ring (7) material and / or geometric prepared, wherein the bridge element (2) is resiliently deformable , Moreover, the invention relates to a rolling bearing (10) with such a protective device (1) and a housing-shaft arrangement (13) with a rolling bearing (10).