Listing is for 1 (One) V-Grooved Metal Wheel 4" Diameter x 1-1/2" Face x 1-3/4" Hub length with 3/4" Straight Roller Bearing by Hamilton.
Wheel Diameter: 4"
Hub Length: 1-3/4"
Tread Face: 1-1/2"
Roller Bearing: 3/4"
Groove Width: 7/8"
Groove Angle: 90 degrees
Iron wheel provides excellent service on applications using a track. V groove wheels also perform well when used without tracking.