{"product_id":"browning-1033638-two-groove-sheave-1-1-8-bore-4-95-od","title":"Browning 1033638 Two Groove Sheave 1-1\/8 Bore 4.95 Od","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe BROWNING 1033638 is a finished bore two groove sheave designed for V-belt drive systems in HVAC, industrial, and mechanical equipment applications. Built from cast iron, this sheave features a 1-1\/8 inch finished bore and a 4.95 inch outer diameter, making it a direct-mount option that requires no secondary boring or machining. The belt pitch diameter measures 4.6 inches, and the pitch diameter for 4L or A-type belts is 4.2 inches. The overall length through the bore is 1-15\/32 inches. HVAC technicians and mechanical contractors install this type of sheave on blower and fan assemblies where precise belt alignment and consistent drive ratios are critical.\u003c\/p\u003e\n\u003cp\u003eThis two groove sheave is suited for residential and light commercial air handling units, belt-driven blowers, and similar rotating equipment where dual V-belt configurations are used. It accommodates standard B-section and A-section V-belts. The finished bore design means the part is ready for installation onto standard keyed or set-screw shafting without additional machining. It is commonly installed on motor shafts or driven equipment shafts in forced-air HVAC systems and ventilation equipment.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eFinished 1-1\/8 inch bore — no additional machining required\u003c\/li\u003e\n  \u003cli\u003eTwo groove configuration supports dual V-belt drive setups\u003c\/li\u003e\n  \u003cli\u003eCast iron construction for durability and dimensional stability under load\u003c\/li\u003e\n  \u003cli\u003eCompatible with 4L and A-type V-belts with a 4.2 inch pitch diameter\u003c\/li\u003e\n  \u003cli\u003eB-section belt pitch diameter of 4.6 inches\u003c\/li\u003e\n  \u003cli\u003eOverall bore length of 1-15\/32 inches suits standard shaft lengths\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as an OEM-style replacement or direct-install two groove V-belt sheave for belt-driven blower and fan assemblies using standard A-section or B-section V-belts on 1-1\/8 inch shafting.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation should be performed by a qualified HVAC technician or mechanical contractor. Always disconnect and lock out power to the equipment before removing or installing sheaves. Ensure the shaft is clean and free of burrs before sliding the sheave into position, and verify proper belt tension and alignment before returning the system to service. Consult applicable mechanical and HVAC codes for drive system service requirements.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSheave Type\u003c\/strong\u003e: Two Groove Sheave\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBore Diameter\u003c\/strong\u003e: 1-1\/8 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOuter Diameter\u003c\/strong\u003e: 4.95 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBelt Pitch Diameter (B\/A Section)\u003c\/strong\u003e: 4.6 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePitch Diameter (4L or A Belt)\u003c\/strong\u003e: 4.2 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOverall Length Through Bore\u003c\/strong\u003e: 1-15\/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: 4.35 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: 1033638\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"BROWNING","offers":[{"title":"Default Title","offer_id":51541525889330,"sku":"1033638","price":212.59,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/6e55fad486847967e0ac2ea17afae10c.jpg?v=1785878353","url":"https:\/\/voomisupply.com\/products\/browning-1033638-two-groove-sheave-1-1-8-bore-4-95-od","provider":"Voomi Supply","version":"1.0","type":"link"}