This 8-inch by 3-inch 85 series caster sets the standard for durability and precision with its high-quality construction. The yoke and top plate are forged through a drop forged process using C-1045 steel, ensuring exceptional strength and reliability. The kingpin is an integral component of the top plate, providing seamless integration. The top plate is machined to incorporate the raceway, while the threaded kingpin and yoke base raceway are machined to a 5-inch diameter. Although the raceway is not heat treated, a precision tapered load bearing (with dimensions of 3.875 inch ID x 5.00 inch OD) is positioned between the top plate and yoke base, enhancing precision and load-bearing capacity. To complete the assembly, a 1.25-inch precision tapered thrust bearing is pressed over the kingpin, engaging the yoke. This meticulous design results in a swivel section with outstanding load carrying capacity for its class. The 85 Series excels in providing an exceptionally tight tolerance fit, ensuring smooth and precise movements. Moreover, the integrally forged kingpin and slotted adjusting nut significantly contribute to the strength and longevity of the swivel section, further enhancing the caster’s lifespan.
Combined with our 1-inch thick tread, T/R 85A polyurethane wheel, this caster is a versatile solution that brings industrial-strength performance with a softer touch. This specialized formulation is engineered for easy and quiet rolling, making it an ideal choice for a wide range of applications. With its high tear and debris resistance, this wheel ensures exceptional durability and longevity. While offering moderate solvent and oil resistance, it is important to note its lack of water resistance and unsuitability for hot and humid environments due to the risk of microbial attack. Packed with our straight roller bearings, which are most effective for heavy loads, and are a great option when facing excessive thrust loading, these casters are rated for 2500 lbs.