Listing is for 1 (One) Steel Single Flanged Track Wheel 4-1/2" Diameter x 1-5/8" Face x 3-1/4" Hub length with 1" Straight Roller Bearing by Hamilton.
Roller Bearing: 1"
Wheel Diameter: 4.5 (4-1/2")
Diameter Including Flange: 5.5" (5-1/2")
Hub Length: 3.25" (3-1/4")
Tread Contact Face: 1.625" (1-5/8")
Load Capacity: 3,000 lbs