The 7700 Caster Series is a line of dual-wheel, solid pneumatic casters designed to cushion loads while providing a carrying capacity of up to 8,400 lb. (3.8 mt) per caster.
All models have drop forged steel mounting plates and CNC machined raceways. Available in six wheel diameters from 10 x 4 in. (25 x 10 cm) to 21 x 6 in. (53 x 15 cm), all wheels are equipped with 1 or 1.25-in. (2.5 or 3.8 cm) precision tapered roller bearings making them well suited for power-towed applications.
The 16, 18, and 21-in. (40, 45, 53 and cm) wheels are comprised of three tread sections: a firm, stable rubber base compound for strong rim adhesion; a very resilient middle section to dampen the shock of uneven rolling surfaces; and a tough low rolling resistance tread to reduce energy consumption. The result is a soft ride that compares with full pneumatic tires, but with much higher capacities than their air-filled cousins.
The 12 and 14-in. (30 and 35 cm) wheels are comprised of two tread sections. The same stable base is found on the other wheels for strong rim adhesion combined with a tough abrasion-resistant outer tread compound.
