{"product_id":"browning-1042480-qd-bushed-v-belt-sheave-1-groove-bk57h","title":"Browning 1042480 Qd Bushed V Belt Sheave 1 Groove BK57H","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe BROWNING 1042480 is a single-groove, QD bushed V-belt sheave designed for power transmission applications in HVAC, industrial, and mechanical drive systems. Also identified by the model designation BK57H, this sheave features a 5.45-inch outside diameter and accepts an H-style QD bushing, allowing bore sizes from 3\/8 inch to 1-1\/2 inch to suit a range of shaft dimensions. The A-belt pitch diameter is 4.7 inches and the B-belt pitch diameter is 5.1 inches. Weighing 2.8 pounds, this cast sheave installs with a standard QD bushing system for secure, repeatable mounting without requiring custom machining.\u003c\/p\u003e\n\u003cp\u003eThis sheave is a common replacement component in belt-driven HVAC blower assemblies, fan systems, and light industrial drive trains. The single-groove configuration suits straightforward single-belt drive setups. The QD bushing mount simplifies field installation and removal, making it practical for maintenance technicians servicing rooftop units, air handlers, and belt-driven exhaust or supply fans where drive ratios require a sheave in this diameter range.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eSingle-groove design compatible with standard A-profile and B-profile V-belts\u003c\/li\u003e\n  \u003cli\u003e5.45-inch outside diameter with 4.7-inch A-belt pitch diameter and 5.1-inch B-belt pitch diameter\u003c\/li\u003e\n  \u003cli\u003eBore range from 3\/8 inch to 1-1\/2 inch via H-style QD bushing\u003c\/li\u003e\n  \u003cli\u003eQD bushing mount allows fast field installation and removal without special tooling\u003c\/li\u003e\n  \u003cli\u003eCompact and lightweight at 2.8 pounds for easy handling during service\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as an OEM-style replacement single-groove QD bushed V-belt sheave for belt-driven blower and fan assemblies requiring an H-style QD bushing and a 5.45-inch outside diameter sheave.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation is typically performed by qualified HVAC technicians or millwrights. Disconnect and lock out all power to the drive system before removing or installing the sheave. The H-style QD bushing must be sourced separately and torqued per the bushing manufacturer specifications. After installation, verify belt tension and sheave alignment before returning the system to service.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eModel Designation\u003c\/strong\u003e: BK57H\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eNumber of Grooves\u003c\/strong\u003e: 1\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOutside Diameter\u003c\/strong\u003e: 5.45 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBelt Pitch A Diameter\u003c\/strong\u003e: 4.7 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBelt Pitch B Diameter\u003c\/strong\u003e: 5.1 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMinimum Bore Diameter\u003c\/strong\u003e: 3\/8 inch\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaximum Bore Diameter\u003c\/strong\u003e: 1-1\/2 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBushing Style\u003c\/strong\u003e: H (QD)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 2.8 pounds\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eUNSPSC Code\u003c\/strong\u003e: 31171804\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eStandard Information\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBrand\u003c\/strong\u003e: BROWNING\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 1042480\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"BROWNING","offers":[{"title":"Default Title","offer_id":51543004578098,"sku":"1042480","price":102.94,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/0b25610a513c12f0d4df1992e0efcad4.jpg?v=1785913481","url":"https:\/\/voomisupply.com\/products\/browning-1042480-qd-bushed-v-belt-sheave-1-groove-bk57h","provider":"Voomi Supply","version":"1.0","type":"link"}