D1729 Diameter: 1.25" Steel ball bearing roller with adjustable steel housing assembly. Used by Viking and other glass door manufacturers. Features: -Sliding glass door roller. -Housing height: 1". -Material: Steel ball bearing. -Edge type: Concave. -Diameter 1.25": 5.44"H x 0.88" W x 3.81" D. -Diameter 1.13": 5.44"H x 3.81" W x 0.88" D. -Housing width: 0.69". Specifications: -Housing width: 0.88" at dimples. -Housing length: 2.31". -Dimensions: 5.44" H x 3.81" W x 0.88" D. -Housing length: 2.13". -Dimensions: 5.44" H x 0.88-3.81" W x 0.88-3.81" D. d1729 Installation d1540 Installation