{"product_id":"browning-1025808-single-groove-sheave-0-5-in-bore-cast-iron","title":"Browning 1025808 Single Groove Sheave 0.5 in Bore Cast Iron","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe BROWNING 1025808 is a finished bore single groove sheave designed for use in V-belt drive systems. Manufactured from cast iron, this sheave features a 0.5 inch bore diameter and a 1.75 inch outside diameter, making it suited for compact drive arrangements. The groove accommodates Type 4L or A belts at a 1.5 inch pitch diameter and Type 3L belts at a 1.16 inch pitch diameter. The through-bore length measures 15\/16 inch and the face width is 21\/32 inch. Licensed HVAC technicians, millwrights, and mechanical contractors install these sheaves on fan shafts, blower assemblies, and light-duty power transmission applications where precise belt alignment is required.\u003c\/p\u003e\n\u003cp\u003eThis sheave is appropriate for residential and light commercial HVAC blower drives, small conveyor systems, and general power transmission setups. Its finished bore means the bore is machined to final dimension at the factory, eliminating the need for additional boring before installation. The compact outer diameter makes it a practical fit in tight equipment envelopes where clearance around the pulley is limited. Install with a matching V-belt and mating sheave to complete the drive assembly.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eFinished bore at 0.5 inch — ready to install without additional machining\u003c\/li\u003e\n  \u003cli\u003eCast iron construction for durability in belt drive applications\u003c\/li\u003e\n  \u003cli\u003eSingle groove design accepts Type 4L or A and Type 3L V-belts\u003c\/li\u003e\n  \u003cli\u003e1.5 inch pitch diameter for Type 4L or A belt; 1.16 inch pitch diameter for Type 3L belt\u003c\/li\u003e\n  \u003cli\u003eCompact 1.75 inch OD suits space-constrained drive assemblies\u003c\/li\u003e\n  \u003cli\u003eFace width of 21\/32 inch with a through-bore length of 15\/16 inch\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 light-duty V-belt drive systems requiring a 0.5 inch bore and compatibility with Type 3L, 4L, or A V-belts.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation of this sheave is typically performed by a licensed HVAC technician or qualified millwright. Disconnect and lock out all power to the drive system before removing or installing any sheave. Confirm shaft diameter matches the 0.5 inch finished bore before pressing or sliding the sheave onto the shaft, and use a suitable keyed shaft or set screw arrangement as required by the equipment design. After installation, verify proper belt tension and sheave alignment using a straightedge or laser alignment tool before returning the system to service.\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\u003eBore Diameter\u003c\/strong\u003e: 0.5 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOutside Diameter\u003c\/strong\u003e: 1.75 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePitch Diameter (Type 4L or A Belt)\u003c\/strong\u003e: 1.5 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePitch Diameter (Type 3L Belt)\u003c\/strong\u003e: 1.16 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFace Width\u003c\/strong\u003e: 21\/32 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOverall Length Through Bore\u003c\/strong\u003e: 15\/16 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: 0.35 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: 1025808\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"BROWNING","offers":[{"title":"Default Title","offer_id":51540725727538,"sku":"1025808","price":53.48,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/c2f40dbcc76f544aa3f641ccbb802fac.jpg?v=1785863063","url":"https:\/\/voomisupply.com\/products\/browning-1025808-single-groove-sheave-0-5-in-bore-cast-iron","provider":"Voomi Supply","version":"1.0","type":"link"}