WHEEL, ROLLER GUIDE, 5 3/4", POLYURETHANE ELPRO # 36SRGWU

Cast aluminum hub
Diameter: 5 1/2″
Long-life, high cushion, oil resistant compound, concentrically ground to .002″ total indicator run-out
Bearings:
Two precision ball bearings per wheel, fully sealed.
Note: Bearing is recessed on one side and flush on the other side.