This 8-inch by 4-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.
Paired with our general-purpose, Standard Polyurethane (Shore 95A Hardness) wheel, this caster becomes good for numerous industrial applications. It is non-marking with high tear strength and resistance to flat spotting, as well as a good solvent and water resistance. Featuring our precision tapered bearings, the wheels are capable of absorbing excessive side thrust loading and can be used where high speed operation is essential, all with a load rating of 3800 lbs.