RWM Casters VIR-0415-08 4" Diameter X 1-1/2" Width Cast Iron V-Groove Wheel with Straight Roller Bearing, 700 lbs Capacity
4" x 1-1/2" V Groove Wheel for Casters or Equipment 1/2" ID Roller Bearing 600 lb Cap
6" x 2" V Groove Wheel for Casters or Equipment 1200 lb Cap
4" x 2" V Groove Wheel for Casters or Equipment 800 lb Cap