4" x 1-1/4" Poly-Pro Wheel Gray/Gray - 350 lbs. Capacity

4" x 1-1/4" Poly-Pro Wheel The poly-pro wheel is one of our caster staples, providing plenty of durability with a firm tread. The polyurethane tread protects surfaces, and the annular bearings roll very smoothly. These wheels work best for indoor applications; for outdoor use, please take a look at our Polymadic wheel casters with UV-resistant materials. Tread:Polyurethane, Non-Marking, Mechanically Locked To Core Core:Solid Polyolefin Bearing:Annular Ball Bearing Capacity: 350 Lbs. Color: Gray on Gray Durometer: Shore D 55 (+/-5) Temperature Range: -20°F to 180°F Load Capacity 350 Lbs. Wheel Diameter 4" Tread Width 1-1/4" Tread Type Polyurethane, Non-Marking, Mechanically Locked To Core Core Type Polyolefin Core Axle / Bore Diameter 3/8" Hub Length 1-9/16" Bearing Type 3/8" Annular Bearing With Full Thread Guards Color Gray/Gray Durometer 55 Shore D (+/-5) Temperature Range -20°F to 180°F