Wheel diameter: 4"

Tread width: 1-1/4"

Hub length: 1-1/2"

Bearing ID: 3/8"

Wheel bearing: Annular

Durometer: 75 Shore A (+/-5)

Temperature range: -20F to 160F

Load capacity: 250 lbs

Construction: Soft rubber tread chemically bonded to a strong aluminum core

Non marking and floor protective

Annular berings on smaller diameters