{"product_id":"b300","title":"HVAC \u0026 Equipment V-Belt B300, Replaces Timken B300, Timken BP300, Dayco B300GL","description":"\u003cstyle\u003e\n.xp{font-family:Arial,Helvetica,sans-serif;color:#1b1b1b;line-height:1.5;max-width:1100px;margin:auto}.xp *{box-sizing:border-box}.xp .hero{position:relative;overflow:hidden;border-radius:12px;padding:22px 28px;margin-bottom:18px;color:#fff;background:#111;isolation:isolate}.xp .hero:before{content:\"\";position:absolute;inset:0;z-index:-2;background:url('https:\/\/cdn.shopify.com\/s\/files\/1\/0897\/7783\/2225\/files\/4444444444444444.png?v=1777040489') center\/cover no-repeat}.xp .hero:after{content:\"\";position:absolute;inset:0;z-index:-1;background:linear-gradient(135deg,rgba(0,0,0,.86) 55%,rgba(0,0,0,.45))}.xp .label{display:inline-block;background:#e60000;color:#fff;font-weight:800;font-size:11px;letter-spacing:.05em;padding:6px 10px;border-radius:20px;margin-bottom:9px}.xp .hero h2{font-size:clamp(22px,3vw,34px);line-height:1.1;margin:0 0 8px;color:#fff!important}.xp .hero p{margin:0;color:#fff!important}.xp .specs{display:flex;flex-wrap:wrap;gap:7px;margin-top:10px}.xp .specs span{background:rgba(255,255,255,.1);border:1px solid rgba(255,255,255,.25);padding:5px 8px;border-radius:7px;font-size:12px;font-weight:700}.xp h2{font-size:27px;margin:28px 0 10px;color:#111}.xp .grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(210px,1fr));gap:12px;margin:16px 0}.xp .card{border:1px solid #ddd;border-radius:10px;padding:16px;background:#fff}.xp .card strong{display:block;color:#e60000;margin-bottom:3px}.xp ul,.xp ol{padding-left:22px}.xp li{margin:6px 0}.xp .tip{border-left:5px solid #e60000;background:#f6f6f6;padding:16px 18px;border-radius:9px;margin:22px 0}.xp .note{font-size:14px;color:#444;background:#fafafa;border:1px solid #e5e5e5;border-radius:9px;padding:14px}@media(max-width:640px){.xp .hero{padding:19px}.xp .hero h2{font-size:24px}.xp h2{font-size:24px}}\n\u003c\/style\u003e\n\u003cdiv class=\"xp\"\u003e\n\u003csection class=\"hero\"\u003e\n\u003cdiv class=\"label\"\u003eBELT SLIPPING OR WORN?\u003c\/div\u003e\n\u003ch2\u003eHVAC \u0026amp; Equipment V-Belt B300, Fixes Belt Slipping\u003c\/h2\u003e\n\u003cp\u003eWrapped classical B-section drive belt for fans, blowers, pumps, conveyors, mixers and industrial machinery.\u003c\/p\u003e\n\u003cdiv class=\"specs\"\u003e\n\u003cspan\u003ePart B300\u003c\/span\u003e\n\u003cspan\u003eApprox. 303\" Outside Length\u003c\/span\u003e\n\u003cspan\u003e21\/32\" Top Width\u003c\/span\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003cp\u003eThe \u003cstrong\u003eB300 V-belt\u003c\/strong\u003e transfers motor power to a compatible driven sheave. Match the full original belt designation and the equipment manufacturer's specifications before ordering.\u003c\/p\u003e\n\n\u003ch2\u003eCross-Reference Information\u003c\/h2\u003e\n\u003cdiv class=\"grid\"\u003e\n\u003cdiv class=\"card\"\u003e\n\u003cstrong\u003eVerified Classical Numbers\u003c\/strong\u003eB300, Timken B300, Timken BP300, Dayco B300GL\u003c\/div\u003e\n\u003cdiv class=\"card\"\u003e\n\u003cstrong\u003eBelt Profile\u003c\/strong\u003eClassical B section\u003c\/div\u003e\n\u003cdiv class=\"card\"\u003e\n\u003cstrong\u003eTop Width\u003c\/strong\u003e21\/32\" \/ approximately 16.7 mm\u003c\/div\u003e\n\u003cdiv class=\"card\"\u003e\n\u003cstrong\u003eNominal Height\u003c\/strong\u003e13\/32\" \/ approximately 10.3 mm\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cp class=\"note\"\u003e\u003cstrong\u003eLength note:\u003c\/strong\u003e The B number is an industry classical designation. Published inside, datum and outside lengths can differ by manufacturer and measurement method. Use the exact marked part number rather than measuring a loose belt by hand.\u003c\/p\u003e\n\n\u003ch2\u003eCommon Symptoms\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eBelt slips or squeals under load\u003c\/li\u003e\n\u003cli\u003eDriven fan, blower, pump or conveyor runs slowly\u003c\/li\u003e\n\u003cli\u003eBlack belt dust develops around the sheaves\u003c\/li\u003e\n\u003cli\u003eBelt is cracked, glazed, stretched or frayed\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eCheck Before Replacing\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eConfirm the B-section profile and complete original belt marking\u003c\/li\u003e\n\u003cli\u003eInspect sheaves for wear, polishing, rust or dished grooves\u003c\/li\u003e\n\u003cli\u003eCheck shaft alignment and bearing condition\u003c\/li\u003e\n\u003cli\u003eConfirm the required service rating and tension specification\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cdiv class=\"tip\"\u003e\n\u003cstrong\u003ePro Tip:\u003c\/strong\u003e A replacement belt can fail early when sheaves are worn, shafts are misaligned, bearings drag or tension is excessive. Correct the root cause before installation.\u003c\/div\u003e\n\n\u003ch2\u003eInstallation Notes\u003c\/h2\u003e\n\u003col\u003e\n\u003cli\u003eDisconnect and lock out electrical power.\u003c\/li\u003e\n\u003cli\u003eRelieve drive tension according to the equipment service manual.\u003c\/li\u003e\n\u003cli\u003eDo not pry the belt over a pulley; create sufficient slack.\u003c\/li\u003e\n\u003cli\u003eAlign the pulleys and set tension to the equipment manufacturer's specification.\u003c\/li\u003e\n\u003cli\u003eRotate the drive by hand, reinstall guards, restore power and test operation.\u003c\/li\u003e\n\u003c\/ol\u003e\n\n\u003ch2\u003eVerified Compatible Equipment Models\u003c\/h2\u003e\n\u003cp class=\"note\"\u003eNo manufacturer-published model-level fitment was verified for this universal classical belt. Match by the exact belt designation, section and equipment requirements—not equipment type alone.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"XPart Supply","offers":[{"title":"Default Title","offer_id":51222590226721,"sku":"B300","price":70.79,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0897\/7783\/2225\/files\/drive_belts.png?v=1785290132","url":"https:\/\/xpartsupply.com\/products\/b300","provider":"XPart Supply Ltd.","version":"1.0","type":"link"}