This wheel has a polyurethane tread permanently molded and mechanically locked to an aluminum hub. It provides easy rolling, high load capacity, good floor protection and long service life. Sold with a roller bearing. Tread hardness: 55 Shore D.
Finish is yellow zinc chromate twice as corrosion-resistant as clear zinc
Roller wheel bearings
Upper raceway grease seal retains lubricant and excludes contaminants
Grease zerk fitting in upper raceway and axle for easy maintenance
Mold-on polyurethane wheels are molded to an aluminum hub
Swivel caster has durable, heat-treated, factory lubricated, double ball raceways for high performance
Top Plate Dimensions
Overall Size: 4" x 4-1/2"
Hole Spacing: 2-5/8" x 3-5/8" to 3" x 3"
Hole Size: 3/8" x 3/4" slots
Bolt Dia.: 3/8"
Applications include trucks and hoppers, carts and racks, dollies and other mobile equipment