Adapter for attachment to a track or other surface or for receiving devices having different shaft spline arrangements

An adapter, comprising:

• a housing;
• a shaft receiving port defined in the housing and having a first opening, wherein the shaft receiving port is compatible with a first shaft of a first device and a second shaft of a second device so that the shaft receiving port is configured to receive, through the first opening, either one of the first shaft of the first device or the second shaft of the second device, wherein the shaft receiving port defines a plurality of grooves arranged around the shaft receiving port and extending at least partway along the shaft receiving port, wherein the plurality of grooves comprises a set of first grooves and a set of second grooves, wherein at least one of the first grooves is different from at least one of the second grooves, wherein the first grooves are arranged to receive the first shaft that has a first pattern of splines disposed along the first shaft to fit into the first grooves and the second grooves are arranged to receive the second shaft that has a second pattern of splines along the second shaft to fit into the second grooves;
• and
• a shaft locking mechanism comprising a lock housing, an actuator defined by the lock housing, and a shaft engagement member defined by the lock housing and configured to be movable using the actuator between a locked position and a disengaged position and to engage the first shaft or the second shaft when the first shaft or the second shaft is in the shaft receiving port and the shaft locking mechanism is in a locked position.