Spring loaded bearing arrangement

Claim 1

A SPRING LOADED ROLLING MOUNTING ASSEMBLY COMPRISING (A) A FIXED SUPPORT MEMBER HAVING A PLANAR SUPPORTING WALL, (B) A MOVABLE MEMBER HAVING A PLANAR WALL, (C) A RECIRCULATING ROLLER BEARING HAVING A BODY WITH A BACK MOUNTING WALL AND A PLURALITY OF RECIRCULATING CYLINDRICAL ROLLERS DEFINING A PLANAR ROLLING SURFACE OPPOSITE THE BACK MOUNTING WALL, SAID BEARING BEING DISPOSED ON THE FIXED SUPPORT MEMBER WITH THE ROLLERS ON THE PLANAR SUPPORTING WALL, (D) A MECHANICAL SPRING UNIT DISPOSED BETWEEN THE MOVABLE MEMBER AND THE ROLLER BEARING, SAID SPRING UNIT INCLUDING A FIRST MECHANICAL SPRING HAVING A SPRING CONSTANT DEFLECTABLE UNDER INITIAL LOADING AND A PAIR OF COLUMNS EXTENDING PERPENDICULARLY TO THE PLANAR WALL OF THE MOVABLE MEMBER AND HAVING A SPRING BEAM SPANNING AND BEARING UPON SAID PAIR OF COLUMNS, SAID BEAM CONSTITUTING A SPRING HAVING A SUBSTANTIALLY HIGHER SPRING CONSTANT DEFLECTABLE AFTER SUBSTANTIALLY COMPLETE DEFLECTION OF THE FIRST SPRING PORTION, AND (E) SAID SPRING UNIT HAVING A CROWNED FORCE TRANSMITTING SURFACE ESTABLISHING SELF-ALIGNMENT OF THE LOAD FORCES ON THE MOVABLE MEMBER TO ESTABLISH PERPENDICULAR FORCES ON THE SPRING UNIT AND THE ROLLER BEARING.