CRL D1506SB 1-1/2" Diameter Sealed Ball Bearing Rollers - pack of 2

This CRL Patio Door Roller has a nylon outer wheel with steel ball bearings which are encased in a sealed inner race to improve performance and extend the life of the bearing. Similar to the more common nylon rollers with a concave outer wheel and a 1/4" (6.4 mm) inner diameter, the overall width of the inner race is 5/16" (7.9 mm). This roller package does not include bolts or nuts.