Modular transforming trolley with adjustable axle mechanism for office use

An adjustable, non-rotating axle device for supporting one or more modular tops, comprising:

• a vertically adjustable axle mechanism including a non-rotating spindle configured to provide height adjustment for ergonomic positioning during seated or standing work;
• a lift assembly coupled to said non-rotating spindle and configured to move vertically through one of a gas-spring lift system or an electric lift system, said lift assembly being independent of any rotational movement of said non-rotating spindle;
• a rotational coupling disposed at an upper end of said non-rotating spindle and configured to mechanically couple at least one modular top to said non-rotating spindle such that said modular top can rotate about said non-rotating spindle independently of a rotation or lack thereof of said non-rotating spindle, and can be locked in a plurality of angular positions;
• and
• a locking system configured to secure said modular top at a selected height and a rotational position;
• wherein said adjustable, non-rotating axle device is adapted to be mounted to another piece of furniture to provide customizable ergonomic and transformable workspace configurations.