High grade liquid cast polyurethane.
90-95 Durometer (Shore A).
50° to +200° F. intermittent; 0° to 180° F continuous. Not damaged by occasional steam cleaning.
traditional anti-friction bearing, best for manual applications where shock loading (but no side thrust) is prevalent.
Souble sealed, maintenance free, superior rollability aids manual applications, not recommended if shock loading is prevalent.
Best for most severe heavy duty and power-towed applications.
For the extra tough jobs requiring protective polyurethane treads, Hamilton manufacturers these top-of-the-line Superlast® Wheels. The extra-thick (1") blue treads (hardness of 90-95 Shore A) are liquid cast and chemically bonded to solid-web, drop forged steel centers.
Precision tapered roller bearings are standard, making these high capacity wheels ideal for towing at limited speeds. Ball-check lubrication fittings are provided in the hubs.