4" x 1-1/4" Semi-Steel Wheel Rigid Caster - 300 lbs. Capacity

4" x 1-1/4" Semi-Steel Wheel Rigid Caster Semi-Steel offers a strong, durable, cost-effective solution for heavy loads. Hard tread rolls easily and offers high abrasion resistance. The Tread face is precisely machined for a smooth, centrical ride, tread edge is machined round. Tread & Core: Steel Alloy Bearing: Plain Bore Rig: Zinc-Plated Rigid Caster, 2-3/8" x 3-5/8" Mounting Plate Capacity: 300 Lbs. Hardness: Brinell 145 Tensile Strength of 30,000 PSI Temperature Range: -45° F to 600° F Load Capacity 300 Lbs. Wheel Diameter 4" Tread Width 1-1/4" Tread Type Steel Alloy Core Type Steel Alloy Bearing Type Plain Bore Wheel Color Silver Overall Height 5-1/4" Plate Size 2-3/8" x 3-5/8" Bolt Hole Pattern 1-3/4" x 2-7/8" slotted to 3" Bolt Hole Diameter 5/16" Tensile Strength 30,000 PSI Temperature Range -45° F to 600° F