{"product_id":"castair-replacement-industrial-v-type-belt-section-b-length-47-3-b47","title":"Castair Replacement Industrial V-Type Belt Section B Length 47\" 3-B47","description":"\u003ch2\u003eCastair Replacement Industrial V-Belt — Section B, 47\" Length (3-B47)\u003c\/h2\u003e\n\u003cp\u003eThe Castair 3-B47 is a Section B industrial V-belt at 47 inches outside circumference. Section B belts are wider and deeper than Section A — 21\/32\" top width versus 1\/2\" — which means higher torque capacity. They are used on larger or more demanding drive configurations where the power transfer requirement exceeds what a Section A belt can handle reliably. If your Castair compressor calls for a B-section belt, you cannot substitute a Section A even if the length is close.\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003eManufacturer page data was not available for this listing. Call 866-217-0063 to confirm this is the correct belt for your compressor.\u003c\/em\u003e\u003c\/p\u003e\n\n\u003ch2\u003eSection B Belt Details\u003c\/h2\u003e\n\u003ch3\u003eCross-Section Comparison: A vs. B\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSection A:\u003c\/strong\u003e 1\/2\" top width, 5\/16\" depth — lighter drives, smaller motors\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSection B:\u003c\/strong\u003e 21\/32\" top width, 13\/32\" depth — heavier drives, larger motors, higher torque\u003c\/li\u003e\n\u003cli\u003eThe pulley groove must match the belt section — B-section pulleys have a wider, deeper groove than A-section\u003c\/li\u003e\n\u003cli\u003eDo not run a Section A belt in a Section B pulley or vice versa\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003e3-B47 Specifications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart Number:\u003c\/strong\u003e 3-B47\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBelt Section:\u003c\/strong\u003e B (21\/32\" top width, 13\/32\" depth)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOutside Circumference:\u003c\/strong\u003e 47 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eApplication:\u003c\/strong\u003e Castair compressors requiring Section B, 47\" belt\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePrice:\u003c\/strong\u003e $13.86\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eBelt Maintenance Guidelines\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eInspect belt condition and tension every 250 hours on heavy-duty or continuous-duty compressors\u003c\/li\u003e\n\u003cli\u003eReplace belts showing cracks, glazing, fraying, or cord exposure\u003c\/li\u003e\n\u003cli\u003eAlways check pulley alignment when replacing a belt — misalignment is the number one cause of premature belt failure\u003c\/li\u003e\n\u003cli\u003eOn multi-belt drives, always replace all belts as a set — mixing old and new belts causes uneven load distribution\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eRelated Castair Section B Belt Sizes\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e3-B47\u003c\/strong\u003e — 47\" (this belt)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e3-B52\u003c\/strong\u003e — 52\"\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e3-B112\u003c\/strong\u003e — 112\"\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart Number:\u003c\/strong\u003e 3-B47\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBelt Section:\u003c\/strong\u003e B\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOutside Circumference:\u003c\/strong\u003e 47 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTop Width:\u003c\/strong\u003e 21\/32\" (17mm nominal)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThickness:\u003c\/strong\u003e 13\/32\" (11mm nominal)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePrice:\u003c\/strong\u003e $13.86\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhy Buy From OEM Diagnostic Tools?\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecialist since 2016\u003c\/strong\u003e in air compressor components\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFree shipping\u003c\/strong\u003e on qualifying orders\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eFree tech support at 866-217-0063\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eFull manufacturer warranty\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eCall 866-217-0063 for quick answers and help!\u003c\/strong\u003e\u003c\/p\u003e","brand":"Cast Air","offers":[{"title":"Default Title","offer_id":53342505271509,"sku":"3-B47","price":25.56,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0622\/8466\/0949\/files\/beltb_c713445f-cbbd-45fe-99b8-e74dbf4d4f63.jpg?v=1772652493","url":"https:\/\/aircompressorfactorydirect.com\/products\/castair-replacement-industrial-v-type-belt-section-b-length-47-3-b47","provider":"Air Compressor Factory Direct","version":"1.0","type":"link"}