A shaving unit for use in a shaving device, the shaving unit comprising: a base portion comprising a coupling structure by means of which the shaving unit is releasably couplable to a main housing of the shaving device; at least two hair-cutting units; and a supporting member centrally arranged between the at least two hair-cutting units and having a central axis, wherein each hair-cutting unit is connected to the supporting member and comprises: an external cutting member having a plurality of hair-entry openings; an internal cutting member which is rotatable relative to the external cutting member; a cutting unit housing supporting the external and internal cutting members of the hair-cutting unit and accommodating an individual hair-collecting chamber of the hair-cutting unit which is separate from the hair-collecting chambers of the other hair-cutting units; and a pivot axis about which the cutting-unit housing is pivotable relative to the supporting member independently from the cutting-unit housings of the other hair-cutting units, characterized in that the shaving unit further comprises: a linear guiding structure (22,24) enabling the supporting member to linearly move relative to the base portion in a movement direction parallel to the central axis of the supporting member between a first, retracted, position and a second, extended, position; and a spring member for biasing the supporting member away from the base portion in the movement direction. a base portion comprising a coupling structure by means of which the shaving unit is releasably couplable to a main housing of the shaving device; at least two hair-cutting units; and a supporting member centrally arranged between the at least two hair-cutting units and having a central axis, wherein each hair-cutting unit is connected to the supporting member and comprises: an external cutting member having a plurality of hair-entry openings; an internal cutting member which is rotatable relative to the external cutting member; a cutting unit housing supporting the external and internal cutting members of the hair-cutting unit and accommodating an individual hair-collecting chamber of the hair-cutting unit which is separate from the hair-collecting chambers of the other hair-cutting units; and a pivot axis about which the cutting-unit housing is pivotable relative to the supporting member independently from the cutting-unit housings of the other hair-cutting units, an external cutting member having a plurality of hair-entry openings; an internal cutting member which is rotatable relative to the external cutting member; a cutting unit housing supporting the external and internal cutting members of the hair-cutting unit and accommodating an individual hair-collecting chamber of the hair-cutting unit which is separate from the hair-collecting chambers of the other hair-cutting units; and a pivot axis about which the cutting-unit housing is pivotable relative to the supporting member independently from the cutting-unit housings of the other hair-cutting units, characterized in that the shaving unit further comprises: a linear guiding structure (22,24) enabling the supporting member to linearly move relative to the base portion in a movement direction parallel to the central axis of the supporting member between a first, retracted, position and a second, extended, position; and a spring member for biasing the supporting member away from the base portion in the movement direction. a linear guiding structure (22,24) enabling the supporting member to linearly move relative to the base portion in a movement direction parallel to the central axis of the supporting member between a first, retracted, position and a second, extended, position; and a spring member for biasing the supporting member away from the base portion in the movement direction.