Puller tool and adapter

An adapter configured to be attached to a cross bar of a puller tool, the cross bar having a central portion, the central portion having a through hole for a forcing screw, the forcing screw configured to extend through the through hole and the through hole defining a first axis, the central portion having a first minimal radial dimension perpendicular to the first axis, the adapter comprising:

• a threaded hole configured to receive the forcing screw and defining a second axis, wherein the first axis and second axis are substantially alignable;
• a base portion containing the threaded hole and arrangeable adjacent a first axial side of the cross bar;
• at least a first wall portion extending away from the base portion and arrangeable adjacent to a first lateral side of the central portion of the cross bar,
• wherein the at least first wall portion has at least a first distance from the second axis, and
• wherein the first distance is at least half as big as the first minimal radial dimension of the central portion,
• wherein the adapter is detachably attachable to the cross bar,
• wherein the adapter has a second wall portion extending away from the base portion and arrangeable adjacent to a second lateral side of the central portion of the cross bar opposite from the first lateral side, wherein the second wall portion has at least a second distance from the second axis, wherein the second distance is as big as the first distance so that the central portion is receivable within the adapter, wherein the adapter is configured to transmit torque from the threaded hole through the base portion and at least one side wall to at least one lateral side of the cross bar,
• wherein the adapter is attachable to the cross bar with at least one attachment device selected from a group consisting of ball detents, thumb screws, clamps, straps, springs, and magnets, wherein the at least one attachment device is arranged at least in the second wall portion,
• wherein the first and second wall portions are curved around the central portion,
• wherein the first wall portion and the second wall portion extend along the lateral sides of the cross bar away from the central portion with first and second outer wall segments, and wherein the outer wall segments are flat and parallel to each other.