4" x 2" Semi-Steel Wheel Swivel Caster - 700 lbs. Capacity

4" x 2" Semi-Steel Wheel Swivel CasterSemi-Steel / Cast iron offers a strong, durable, cost effective solution for heavy loads. Hard tread rolls easily and offers high abrasion resistance. Tread face is precisely machined for a smooth, centered ride, tread edge is machined round. Tread & Core: Steel Alloy Bearing: Roller Bearing Rig: Zinc-Plated Swivel Caster, 4" x 4-1/2" Mounting Plate Capacity: 700 Lbs. Color: Silver Hardness: Brinell 145 Tensile Strength: 30,000 PSI Temperature Range: -45° F to 600° F Load Capacity 700 Lbs. Wheel Diameter 4" Tread Width 2" Tread Type Steel Alloy Core Type Steel Alloy Bearing Type Roller Bearing Wheel Color Silver Overall Height 5-5/8" Swivel Radius 3-1/4" Mounting Plate Size 4" x 4-1/2" Bolt Hole Pattern 2-5/8" x 3-5/8" slotted to 3" x 3" Bolt Hole Diameter 3/8" Tensile Strength 30,000 PSI Temperature Range -45° F to 600° F