{"product_id":"browning-1028471-single-groove-sheave-4-95-in-od-cast-iron","title":"Browning 1028471 Single Groove Sheave 4.95 in Od Cast Iron","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe BROWNING 1028471 is a finished bore single groove sheave designed for use with B-section and A-section or 4L V-belts in belt-drive power transmission systems. Cast from iron for durability and dimensional stability, this sheave features a 7\/8 inch finished bore and a 4.95 inch outer diameter. The pitch diameter for B-section belts is 4.6 inches, and the pitch diameter for A-section or 4L belts is 4.2 inches. It weighs 2.1 pounds and is a direct drop-in component for single-groove drive configurations. HVAC technicians, millwrights, and mechanical contractors commonly install this type of sheave in blower and fan drive assemblies.\u003c\/p\u003e\n\u003cp\u003eThis sheave is suited for residential and light commercial belt-drive applications including air handling units, furnace blowers, exhaust fans, and other single-groove drive systems where B or A-section belts are used. The finished bore and standard groove profile allow for straightforward installation on standard motor or driven-shaft diameters of 7\/8 inch without secondary machining. The through-bore length of 1-5\/32 inches accommodates standard set screw or bushing retention in typical drive assemblies.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eCast iron construction for rigidity and long service life in continuous-duty drive applications\u003c\/li\u003e\n  \u003cli\u003eFinished bore of 7\/8 inch — no secondary machining required\u003c\/li\u003e\n  \u003cli\u003eSingle groove profile accepts B-section and A-section or 4L V-belts\u003c\/li\u003e\n  \u003cli\u003e4.95 inch outer diameter with 4.6 inch B-belt pitch diameter and 4.2 inch A\/4L pitch diameter\u003c\/li\u003e\n  \u003cli\u003eThrough-bore length of 1-5\/32 inches accommodates standard set screw retention\u003c\/li\u003e\n  \u003cli\u003eLightweight at 2.1 pounds for easy single-technician handling during installation\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as an OEM-style replacement single groove sheave for belt-drive systems using B-section or A-section (4L) V-belts on 7\/8 inch shafts.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation is typically performed by HVAC technicians, millwrights, or mechanical contractors. Always de-energize and lock out the equipment before removing or installing any sheave or belt drive component. Verify shaft diameter and belt section before mounting, and ensure the set screw is properly tightened and the sheave is aligned with the mating sheave before restarting the drive. Belt tension should be set per the belt manufacturer specifications for the applicable belt section.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSheave Type\u003c\/strong\u003e: Single Groove\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOuter Diameter\u003c\/strong\u003e: 4.95 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBore Diameter\u003c\/strong\u003e: 7\/8 inch (finished)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBelt Pitch Diameter (B-section)\u003c\/strong\u003e: 4.6 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBelt Pitch Diameter (A-section \/ 4L)\u003c\/strong\u003e: 4.2 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThrough-Bore Length\u003c\/strong\u003e: 1-5\/32 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaterial\u003c\/strong\u003e: Cast Iron\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 2.1 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: 1028471\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"BROWNING","offers":[{"title":"Default Title","offer_id":51542839787826,"sku":"1028471","price":197.49,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/8244c63a2c97ee39d733750bbf993e5e.jpg?v=1785908896","url":"https:\/\/voomisupply.com\/products\/browning-1028471-single-groove-sheave-4-95-in-od-cast-iron","provider":"Voomi Supply","version":"1.0","type":"link"}