PLANEVEYOR Original Spherical Structure | Product Design Overview This reference sheet summarizes the structural design and engineering principles behind Planeveyor's original spherical ball-transfer mechanism (PAT.P), for use in customer-facing product introductions and technical discussions. ULTIMATE TRANSFER — The Final Evolution of the Ball Transfer Atec conducted extensive experiments on static load ratings while developing the original spherical Planeveyor from the conventional spherical design. Results showed that the original spherical structure keeps stress on the small balls and ball-receiving surface at a critically lower level than the conventional spherical type. As a result, Atec revised the traditional load notation of “Load capacity,” replacing it with two new definitions: Static Rated Load and Load Rating.

Conventional (Atec's old type) Since the conventional spherical took the load with small balls directly below the main ball, fewer small balls shared the load, resulting in higher compression on each ball. Planeveyor (Original Spherical) The original spherical surface takes the load through small balls arranged around the circumference beneath the main ball — six times more balls than the previous type — distributing the load far more evenly. Load Displacement (Deflection) — Planeveyor PV20B *Measurements by Aichi Industrial Technology Institute Contact pressure on main / small balls by spherical...

The maximum load for Planeveyor when the main ball contact surface is made of SS material, while keeping startup friction resistance at 3/100 or less. Use this as a guide for simple positioning of a workpiece. For products whose spherical shape, material, or structure do not fit the Static Rated Load / Load Rating definitions above, a recommended load capacity is derived individually for each intended use. Because of body and mounting-surface tolerances, Planeveyor units are not guaranteed to receive perfectly uniform loads. Select Planeveyor as a guide using: • Cutting (machined) products: workpiece...

Industrial Revolution! Atec Original Spherical Surface (PAT.P) Planeveyor adopts an original spherical surface (PAT.P) with a mechanism completely different from conventional ball transfers. Rather than taking the full workpiece load on small balls directly beneath the main ball, Planeveyor distributes the load across small balls arranged around the circumference. Rotation of the main ball, driven by the movement of a heavy object, circulates smoothly to the surrounding small balls — and changing the ball material also enables rust prevention, heat resistance, or non-magnetic properties. *Applies...

Under the same workpiece load, Planeveyor's original spherical structure distributes contact across roughly six times more small balls than the conventional design, reducing surface pressure by about 40% and greatly improving durability. Starting frictional resistance measures 3/100 or less, even under the static rated load (using an SS400 contact surface). This overwhelming load-bearing performance is expressed through the Static Rated Load and Load Rating notations. Because the same original-spherical unit serves both upward- and downward-facing applications, Atec was able to rationalize manufacturing...