cable pulley

Reference Standard: Relevant material and performance testing standards should be applied where appropriate; the supplied catalog evidence does not identify a model-specific testing standard for these pulley items. A Garage Door Cable Pulley request can describe more than one product form. A buyer may need a standalone pulley, or the required scope may extend to a cable pulley with bracket. That distinction should be settled before dimensions, installation details, or interchangeability are discussed. The available catalog records identify three relevant products: BT-901 is a 4-inch pulley with 1.8 mm thickness and galvanized finish, BT-902 is a 3-inch pulley with 1.5 mm thickness and galvanized finish, and BT-904 is designated as … 続きを読む