D1733 Material: Nylon Ball bearing roller with adjustable steel housing assembly. Used by Northrop and other glass door manufacturers. Features: -Sliding glass door roller. -Housing height: 1.19". -Material: Plastic ball bearing. -Edge type: Concave. -Diameter: 1.25". -Housing style: F-Tab. Specifications: -Number of wheels: 1. -Housing width: 0.69". -Housing width: 0.88" at dimples. -Housing length: 2.31". -Dimensions: 5.44" H x 3.81" W x 0.88" D. d1733 Installation d1584 Installation