Load holder (1, 200) for a suspension system for suspending loads, comprising: fastening means (30, 30') for releasably fastening a suspension module to and/or a suspension module at a first end of the load holder (1, 200); a load bearing device at a second end of the load holder (1, 200), which faces away from the first end along a longitudinal direction of the load holder (1, 200); a levelling module (20, 20') for adjusting a length (L1, L2) of the load holder (1, 200) in the longitudinal direction; and a measurement module for measuring a tensile load between the load bearing device and the first end; wherein the levelling module (20, 20') comprises: - a central sleeve; - a first winding-out module (25, 25'), which engages with the central sleeve via a first threaded connection and protrudes from the central sleeve at a first side of the central sleeve in the longitudinal direction with a first protruding length, wherein the first protruding length is variable by turning the central sleeve relative to the first winding-out module (25, 25'); and - a second winding-out module, which engages with the central sleeve via a second threaded connection and protrudes from the central sleeve at a second side of the central sleeve in the longitudinal direction, which faces away from the first side, with a second protruding length, wherein the second protruding length is variable by turning the central sleeve relative to the second winding-out module; characterized in that the first winding-out module (25, 25') comprises on a side facing the central sleeve in the longitudinal direction a sleeve engagement element with an external thread for the first threaded connection, wherein the sleeve engagement element of the first winding-out module (25, 25') comprises an unscrewing protection device, which prevents the first winding-out module (25, 25') from being fully unscrewed from the center sleeve; and/or in that the second winding-out module comprises on a side facing the central sleeve in the longitudinal direction a sleeve engagement element with an external thread for the second threaded connection, wherein the sleeve engagement element of the second winding-out module comprises an unscrewing protection device which prevents the second winding-out module from being fully unscrewed from the center sleeve. fastening means (30, 30') for releasably fastening a suspension module to and/or a suspension module at a first end of the load holder (1, 200); a load bearing device at a second end of the load holder (1, 200), which faces away from the first end along a longitudinal direction of the load holder (1, 200); a levelling module (20, 20') for adjusting a length (L1, L2) of the load holder (1, 200) in the longitudinal direction; and a measurement module for measuring a tensile load between the load bearing device and the first end; wherein the levelling module (20, 20') comprises: - a central sleeve; - a first winding-out module (25, 25'), which engages with the central sleeve via a first threaded connection and protrudes from the central sleeve at a first side of the central sleeve in the longitudinal direction with a first protruding length, wherein the first protruding length is variable by turning the central sleeve relative to the first winding-out module (25, 25'); and - a second winding-out module, which engages with the central sleeve via a second threaded connection and protrudes from the central sleeve at a second side of the central sleeve in the longitudinal direction, which faces away from the first side, with a second protruding length, wherein the second protruding length is variable by turning the central sleeve relative to the second winding-out module; - a central sleeve; - a first winding-out module (25, 25'), which engages with the central sleeve via a first threaded connection and protrudes from the central sleeve at a first side of the central sleeve in the longitudinal direction with a first protruding length, wherein the first protruding length is variable by turning the central sleeve relative to the first winding-out module (25, 25'); and - a second winding-out module, which engages with the central sleeve via a second threaded connection and protrudes from the central sleeve at a second side of the central sleeve in the longitudinal direction, which faces away from the first side, with a second protruding length, wherein the second protruding length is variable by turning the central sleeve relative to the second winding-out module; characterized in that the first winding-out module (25, 25') comprises on a side facing the central sleeve in the longitudinal direction a sleeve engagement element with an external thread for the first threaded connection, wherein the sleeve engagement element of the first winding-out module (25, 25') comprises an unscrewing protection device, which prevents the first winding-out module (25, 25') from being fully unscrewed from the center sleeve; and/or in that the second winding-out module comprises on a side facing the central sleeve in the longitudinal direction a sleeve engagement element with an external thread for the second threaded connection, wherein the sleeve engagement element of the second winding-out module comprises an unscrewing protection device which prevents the second winding-out module from being fully unscrewed from the center sleeve.