Poly II Rubber wheels are injection co-molded from a dark gray thermoplastic soft rubber tread molded mechanically locked to a light gray polypropylene plastic core (13/16" wide wheels have a black core). Two-inch tread width wheels have a black tread and light gray core. Recommended for light for medium loads on carpeted and hard surfaced floors. Poly II Rubber wheels provide excellent floor protection, abrasion resistance, good impact strength, quiet operation and rolling ease. They are non-marking, and resistant to water, oil, and most acids and chemicals. Recommended operating temperature range is -20° F to 160° F. Poly Il Rubber wheels are available with plain, delrin, boll or roller bearing. Available with optional black color decorative wheel hub caps. Special colors available in quantity. Tread Durometer: 90-100 Shore A.
Mold-on rubber wheels consist of a soft black rubber tread permanently bonded to an aluminum core. Recommended for light to medium loads on hard surfaced floors. Mold-on rubber wheels provide excellent floor and load protection, quiet operation, and absorb shock and vibration. Recommended operating temperature range is -20°F to 160°F. Tread Durometer: 70-85 Shore A.