This 12-inch by 4-inch 91 Series Extra Heavy Duty Kingpinless caster, is a highly acclaimed industrial solution that excels in rugged applications while minimizing maintenance costs. This caster is valued for its simplicity and ability to withstand industrial environments with prevalent shock loading. The top plate and yoke base are aligned using high-quality 3/4 inch hardened ball bearings, providing stability and reliability. The ingenious swivel section construction places the ball bearings in a sheer load position, ensuring exceptional strength and smooth operation even under heavy loads. With effortless swiveling capabilities, the 91 Series offers extended lifecycles and years of cost-effective operation. Constructed from hot forged C-1045 steel, this caster features a single ball race design with 7/8 inch diameter load/thrust ball bearings in a precision-machined 7-inch diameter raceway. This caster delivers durability, strength, and efficiency, making it the ideal choice for demanding industrial applications.
The wheels are constructed of premium Class 30 gray iron for maximum load capacity and impact strength. They feature heavy cross section castings for heavy duty use, abrasion resistance and a long service life. Each wheel is precision machined with rounded edges to finished tolerance. 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 8400 lbs.