{"product_id":"xl-timing-belt-5-08mm-pitch-10mm-wide-70xl-300xl","title":"XL Timing Belt 5.08mm Pitch 10mm Wide — 70XL to 300XL Closed Loop Drive Belt","description":"\u003cscript type=\"application\/ld+json\"\u003e\n{\n  \"@context\": \"https:\/\/schema.org\",\n  \"@type\": \"FAQPage\",\n  \"mainEntity\": [\n    {\n      \"@type\": \"Question\",\n      \"name\": \"How do I choose the right XL timing belt size?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"Match the belt's perimeter to your drive system's center distance and pulley tooth count. Each XL size number corresponds to tenths of an inch of belt perimeter — for example, 100XL has a perimeter of 10.0 inches (254mm). Measure your existing belt or calculate using the formula: Belt Length = 2 × Center Distance + π × (D1 + D2) \/ 2. When in doubt, size up to avoid over-tensioning.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"What does 'XL' mean in timing belt sizing?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"'XL' stands for Extra Light, an industry-standard tooth profile with a 5.08mm (0.200\\\" ) pitch. XL belts are widely used in light-duty power transmission applications such as 3D printers, CNC machines, and small motors.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"How much load can an XL timing belt handle?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"XL series belts are generally rated for light-to-medium duty applications. A 10mm-wide XL belt can typically transmit up to several hundred watts depending on speed and pulley diameter. For heavy industrial loads, consider upgrading to an L or H series belt.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"Can this timing belt be used outdoors or in wet environments?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"Standard XL timing belts are typically made from neoprene rubber with fiberglass cord reinforcement, which offers moderate resistance to moisture and mild chemicals. They are generally not recommended for prolonged outdoor UV exposure or immersion in oils and solvents without confirming material compatibility.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"Will this belt fit my XL pulley?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"Yes — these belts follow the standard XL tooth profile (5.08mm pitch, 40° tooth angle), so they are compatible with any standard XL-series pulley of the same width or wider. Confirm your pulley is rated for 10mm belt width or use a wider pulley with a belt guide.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"How do I convert XL belt size numbers to millimeters?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"Multiply the XL number by 2.54 to get the perimeter in millimeters. For example, 100XL × 2.54 = 254mm. Alternatively, each unit equals 0.1 inch of perimeter, so 100XL = 10.0 inches = 254mm.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"What is the difference between a timing belt and a V-belt?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"Timing belts have teeth that mesh with matching pulley grooves, providing a positive, slip-free drive with precise speed ratios. V-belts rely on friction and can slip under load. For applications requiring synchronized motion — such as CNC axes or stepper motor drives — a timing belt is the correct choice.\"\n      }\n    }\n  ]\n}\n\u003c\/script\u003e\n\n\u003cdiv class=\"hdiy-desc\"\u003e\n\n  \u003cdiv class=\"hdiy-overview\"\u003e\n    \u003ch2\u003eXL Timing Belt 5.08mm Pitch 10mm Wide — Reliable Closed-Loop Drive for Precision Motion Systems\u003c\/h2\u003e\n    \u003cp\u003eWhen a slipping or worn drive belt causes positioning errors in your CNC router, 3D printer, or small-motor assembly, the entire project stalls. Makers, engineers, and repair technicians who need a drop-in XL timing belt replacement — or a spare for a new build — require a belt that matches standard XL pulley geometry exactly, without guesswork.\u003c\/p\u003e\n    \u003cp\u003eEach listing covers one closed-loop XL series timing belt with a 5.08mm (0.200\") tooth pitch and 10mm (≈3\/8\") width. Available in 24 sizes from 70XL to 300XL, with perimeters ranging from 178mm (≈7.0\") to 762mm (≈30.0\"). The belt body is constructed from neoprene rubber with fiberglass tensile cord reinforcement and nylon tooth facing — a construction typical of industry-standard XL drive belts.\u003c\/p\u003e\n    \u003cp\u003eTypical applications include desktop CNC machines and routers requiring synchronized axis motion, FDM 3D printer X\/Y gantry drives, small conveyor systems, and light-duty power transmission setups where a standard XL closed-loop timing belt is specified.\u003c\/p\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"hdiy-compat\"\u003e\n    \u003cspan class=\"hdiy-compat-icon\"\u003e🔗\u003c\/span\u003e\n    \u003cstrong\u003eCompatibility:\u003c\/strong\u003e Fits all standard XL-profile pulleys (5.08mm \/ 0.200\" pitch, 40° tooth angle). Designed for 10mm belt width — use with XL pulleys rated for 10mm or wider. Confirm your size using the perimeter listed in each variant name.\n  \u003c\/div\u003e\n\n  \u003ch2\u003e✅ Key Features of These XL Closed-Loop Timing Belts\u003c\/h2\u003e\n  \u003cul class=\"hdiy-features\"\u003e\n    \u003cli\u003e\n\u003cspan class=\"hdiy-icon\"\u003e⚙️\u003c\/span\u003e\u003cspan\u003e\u003cstrong\u003eStandard XL Tooth Profile\u003c\/strong\u003e — 5.08mm pitch with 40° tooth angle matches any XL-series pulley for a positive, slip-free drive without belt-to-pulley alignment issues.\u003c\/span\u003e\n\u003c\/li\u003e\n    \u003cli\u003e\n\u003cspan class=\"hdiy-icon\"\u003e📏\u003c\/span\u003e\u003cspan\u003e\u003cstrong\u003e24 Sizes in One Listing\u003c\/strong\u003e — Perimeters from 178mm (70XL) to 762mm (300XL) cover the most common XL timing belt sizes used in CNC, 3D printing, and light industrial drives.\u003c\/span\u003e\n\u003c\/li\u003e\n    \u003cli\u003e\n\u003cspan class=\"hdiy-icon\"\u003e🔩\u003c\/span\u003e\u003cspan\u003e\u003cstrong\u003eFiberglass Tensile Cord Core\u003c\/strong\u003e — Fiberglass reinforcement resists stretch under cyclic loading, maintaining consistent center distance and preserving step accuracy in stepper-motor-driven systems.\u003c\/span\u003e\n\u003c\/li\u003e\n    \u003cli\u003e\n\u003cspan class=\"hdiy-icon\"\u003e🛡️\u003c\/span\u003e\u003cspan\u003e\u003cstrong\u003eNeoprene Rubber Body\u003c\/strong\u003e — Neoprene construction provides flexibility across a wide temperature range and offers moderate resistance to oils and moisture compared to natural rubber alternatives.\u003c\/span\u003e\n\u003c\/li\u003e\n    \u003cli\u003e\n\u003cspan class=\"hdiy-icon\"\u003e🧵\u003c\/span\u003e\u003cspan\u003e\u003cstrong\u003eNylon Tooth Facing\u003c\/strong\u003e — The nylon fabric tooth surface reduces friction against pulley grooves, extending belt service life in continuous-duty applications such as conveyor drives and automated feeders.\u003c\/span\u003e\n\u003c\/li\u003e\n    \u003cli\u003e\n\u003cspan class=\"hdiy-icon\"\u003e🔄\u003c\/span\u003e\u003cspan\u003e\u003cstrong\u003eClosed-Loop Construction\u003c\/strong\u003e — Seamless loop design eliminates the splice-point weakness found in cut-to-length belts, making these XL drive belts suitable for high-cycle-count motion systems.\u003c\/span\u003e\n\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003ch2\u003e📐 Technical Specifications — XL Series Closed-Loop Timing Belt\u003c\/h2\u003e\n  \u003cdiv class=\"hdiy-table-wrap\"\u003e\n    \u003ctable\u003e\n      \u003ctbody\u003e\n        \u003ctr\u003e\n\u003cth\u003eBelt Series\u003c\/th\u003e\n\u003ctd\u003eXL (Extra Light)\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003cth\u003eTooth Pitch\u003c\/th\u003e\n\u003ctd\u003e5.08mm (0.200\")\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003cth\u003eTooth Angle\u003c\/th\u003e\n\u003ctd\u003e40°\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003cth\u003eBelt Width\u003c\/th\u003e\n\u003ctd\u003e10mm (≈3\/8\")\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003cth\u003eAvailable Sizes\u003c\/th\u003e\n\u003ctd\u003e70XL – 300XL (24 sizes)\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003cth\u003ePerimeter Range\u003c\/th\u003e\n\u003ctd\u003e178mm (≈7.0\") – 762mm (≈30.0\")\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003cth\u003eBelt Body Material\u003c\/th\u003e\n\u003ctd\u003eNeoprene rubber\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003cth\u003eTensile Cord\u003c\/th\u003e\n\u003ctd\u003eFiberglass\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003cth\u003eTooth Facing\u003c\/th\u003e\n\u003ctd\u003eNylon fabric\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003cth\u003eLoop Type\u003c\/th\u003e\n\u003ctd\u003eClosed loop (endless)\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003cth\u003eCompatible Pulley Profile\u003c\/th\u003e\n\u003ctd\u003eStandard XL (5.08mm pitch)\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003cth\u003eQuantity per Order\u003c\/th\u003e\n\u003ctd\u003e1 piece\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003cth\u003eOperating Temperature\u003c\/th\u003e\n\u003ctd\u003eSee variant options\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003cth\u003eMax Power Rating\u003c\/th\u003e\n\u003ctd\u003eContact us to confirm (varies by speed and pulley diameter)\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003c\/tbody\u003e\n    \u003c\/table\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"hdiy-note\"\u003e\n    \u003cspan class=\"hdiy-note-icon\"\u003e⚠️\u003c\/span\u003e\n    \u003cstrong\u003eSize Tip:\u003c\/strong\u003e The XL number equals the belt perimeter in tenths of an inch. Example: 150XL = 15.0\" = 381mm. Each variant lists the exact perimeter in mm — match this to your drive system before ordering.\n  \u003c\/div\u003e\n\n  \u003ch2\u003e❓ Frequently Asked Questions\u003c\/h2\u003e\n  \u003cdiv class=\"hdiy-faq\"\u003e\n\n    \u003cdetails\u003e\n      \u003csummary\u003eHow do I choose the right XL timing belt size?\u003c\/summary\u003e\n      \u003cdiv class=\"hdiy-faq-body\"\u003e\n        \u003cp\u003eMatch the belt's perimeter to your drive system's center distance and pulley tooth count. Each XL size number corresponds to tenths of an inch of belt perimeter — for example, 100XL has a perimeter of 10.0 inches (254mm). Measure your existing belt or calculate using the formula: \u003cem\u003eBelt Length = 2 × Center Distance + π × (D1 + D2) \/ 2\u003c\/em\u003e. When in doubt, size up slightly to avoid over-tensioning.\u003c\/p\u003e\n      \u003c\/div\u003e\n    \u003c\/details\u003e\n\n    \u003cdetails\u003e\n      \u003csummary\u003eWhat does the 'XL' designation mean?\u003c\/summary\u003e\n      \u003cdiv class=\"hdiy-faq-body\"\u003e\n        \u003cp\u003e'XL' stands for Extra Light — an industry-standard tooth profile with a 5.08mm (0.200\") pitch. XL belts are widely used in light-duty power transmission applications such as 3D printers, CNC machines, and small motors. They are interchangeable across manufacturers as long as the pitch and width match.\u003c\/p\u003e\n      \u003c\/div\u003e\n    \u003c\/details\u003e\n\n    \u003cdetails\u003e\n      \u003csummary\u003eHow much load can a 10mm-wide XL timing belt handle?\u003c\/summary\u003e\n      \u003cdiv class=\"hdiy-faq-body\"\u003e\n        \u003cp\u003eXL series belts are generally rated for light-to-medium duty applications. A 10mm-wide XL belt can typically transmit up to several hundred watts depending on operating speed and pulley diameter. For heavier industrial loads, consider upgrading to an L or H series belt. Contact us if you need to confirm load ratings for your specific application.\u003c\/p\u003e\n      \u003c\/div\u003e\n    \u003c\/details\u003e\n\n    \u003cdetails\u003e\n      \u003csummary\u003eCan this belt be used outdoors or in wet conditions?\u003c\/summary\u003e\n      \u003cdiv class=\"hdiy-faq-body\"\u003e\n        \u003cp\u003eStandard XL timing belts with neoprene construction generally offer moderate resistance to moisture and mild chemicals. They are not typically recommended for prolonged outdoor UV exposure or immersion in petroleum-based oils and solvents without confirming material compatibility. For harsh environments, contact us to discuss material options.\u003c\/p\u003e\n      \u003c\/div\u003e\n    \u003c\/details\u003e\n\n    \u003cdetails\u003e\n      \u003csummary\u003eWill this belt fit my existing XL pulley?\u003c\/summary\u003e\n      \u003cdiv class=\"hdiy-faq-body\"\u003e\n        \u003cp\u003eYes — these belts follow the standard XL tooth profile (5.08mm pitch, 40° tooth angle), making them compatible with any standard XL-series pulley. Confirm your pulley is rated for 10mm belt width or wider. If your pulley is wider than 10mm, a belt guide flange is recommended to keep the belt centered.\u003c\/p\u003e\n      \u003c\/div\u003e\n    \u003c\/details\u003e\n\n    \u003cdetails\u003e\n      \u003csummary\u003eHow do I convert the XL size number to millimeters?\u003c\/summary\u003e\n      \u003cdiv class=\"hdiy-faq-body\"\u003e\n        \u003cp\u003eMultiply the XL number by 2.54 to get the perimeter in millimeters. For example: 100XL × 2.54 = 254mm. Alternatively, each unit equals 0.1 inch of perimeter, so 100XL = 10.0 inches = 254mm. The exact perimeter for each size is also listed in the variant name on this page.\u003c\/p\u003e\n      \u003c\/div\u003e\n    \u003c\/details\u003e\n\n    \u003cdetails\u003e\n      \u003csummary\u003eWhat is the difference between a timing belt and a V-belt for my application?\u003c\/summary\u003e\n      \u003cdiv class=\"hdiy-faq-body\"\u003e\n        \u003cp\u003eTiming belts have teeth that mesh with matching pulley grooves, providing a positive, slip-free drive with precise speed ratios — essential for synchronized motion in CNC axes and stepper motor drives. V-belts rely on friction and can slip under load. If your application requires accurate positioning or a fixed speed ratio, a timing belt is the correct choice.\u003c\/p\u003e\n      \u003c\/div\u003e\n    \u003c\/details\u003e\n\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"hdiy-cta\"\u003e\n    🛒 Select your \u003cstrong\u003ewidth and size\u003c\/strong\u003e above, then add to cart — ships from our US warehouse.\n  \u003c\/div\u003e\n\n\u003c\/div\u003e","brand":"HomeDIYer","offers":[{"title":"10mm \/ 70XL【perimeter 178mm】 \/ 1pcs","offer_id":52367960965394,"sku":"LFLKKMX3147x1","price":2.75,"currency_code":"USD","in_stock":true},{"title":"10mm \/ 80XL【perimeter 203mm】 \/ 1pcs","offer_id":52367960998162,"sku":"LFLKKMX3148x1","price":2.92,"currency_code":"USD","in_stock":true},{"title":"10mm \/ 90XL【perimeter 229mm】 \/ 1pcs","offer_id":52367961030930,"sku":"LFLKKMX3149x1","price":3.07,"currency_code":"USD","in_stock":true},{"title":"10mm \/ 100XL【perimeter 254mm】 \/ 1pcs","offer_id":52367961063698,"sku":"LFLKKMX3150x1","price":3.39,"currency_code":"USD","in_stock":true},{"title":"10mm \/ 110XL【perimeter 279.4mm】 \/ 1pcs","offer_id":52367961096466,"sku":"LFLKKMX3151x1","price":3.47,"currency_code":"USD","in_stock":true},{"title":"10mm \/ 120XL【perimeter 305mm】 \/ 1pcs","offer_id":52367961129234,"sku":"LFLKKMX3152x1","price":3.54,"currency_code":"USD","in_stock":true},{"title":"10mm \/ 130XL【perimeter 330mm】 \/ 1pcs","offer_id":52367961162002,"sku":"LFLKKMX3153x1","price":3.54,"currency_code":"USD","in_stock":true},{"title":"10mm \/ 140XL【perimeter 356mm】 \/ 1pcs","offer_id":52367961194770,"sku":"LFLKKMX3154x1","price":3.62,"currency_code":"USD","in_stock":true},{"title":"10mm \/ 150XL【perimeter 381mm】 \/ 1pcs","offer_id":52367961227538,"sku":"LFLKKMX3155x1","price":3.69,"currency_code":"USD","in_stock":true},{"title":"10mm \/ 160XL【perimeter 406mm】 \/ 1pcs","offer_id":52367961260306,"sku":"LFLKKMX3156x1","price":3.84,"currency_code":"USD","in_stock":true},{"title":"10mm \/ 170XL【perimeter 432mm】 \/ 1pcs","offer_id":52367961293074,"sku":"LFLKKMX3157x1","price":3.84,"currency_code":"USD","in_stock":true},{"title":"10mm \/ 180XL【perimeter 457mm】 \/ 1pcs","offer_id":52367961325842,"sku":"LFLKKMX3158x1","price":3.93,"currency_code":"USD","in_stock":true},{"title":"10mm \/ 190XL【perimeter 483mm】 \/ 1pcs","offer_id":52367961358610,"sku":"LFLKKMX3159x1","price":4.0,"currency_code":"USD","in_stock":true},{"title":"10mm \/ 200XL【perimeter 508mm】 \/ 1pcs","offer_id":52367961391378,"sku":"LFLKKMX3160x1","price":4.15,"currency_code":"USD","in_stock":true},{"title":"10mm \/ 210XL【perimeter 533mm】 \/ 1pcs","offer_id":52367961424146,"sku":"LFLKKMX3161x1","price":4.15,"currency_code":"USD","in_stock":true},{"title":"10mm \/ 220XL【perimeter 559mm】 \/ 1pcs","offer_id":52367961456914,"sku":"LFLKKMX3162x1","price":4.23,"currency_code":"USD","in_stock":true},{"title":"10mm \/ 230XL【perimeter 584mm】 \/ 1pcs","offer_id":52367961489682,"sku":"LFLKKMX3163x1","price":4.3,"currency_code":"USD","in_stock":true},{"title":"10mm \/ 240XL【perimeter 610mm】 \/ 1pcs","offer_id":52367961522450,"sku":"LFLKKMX3164x1","price":4.3,"currency_code":"USD","in_stock":true},{"title":"10mm \/ 250XL【perimeter 635mm】 \/ 1pcs","offer_id":52367961555218,"sku":"LFLKKMX3165x1","price":4.39,"currency_code":"USD","in_stock":true},{"title":"10mm \/ 260XL【perimeter 660mm】 \/ 1pcs","offer_id":52367961587986,"sku":"LFLKKMX3166x1","price":4.46,"currency_code":"USD","in_stock":true},{"title":"10mm \/ 270XL【perimeter 686mm】 \/ 1pcs","offer_id":52367961620754,"sku":"LFLKKMX3167x1","price":4.46,"currency_code":"USD","in_stock":true},{"title":"10mm \/ 280XL【perimeter 711mm】 \/ 1pcs","offer_id":52367961653522,"sku":"LFLKKMX3168x1","price":4.54,"currency_code":"USD","in_stock":true},{"title":"10mm \/ 290XL【perimeter 737mm】 \/ 1pcs","offer_id":52367961686290,"sku":"LFLKKMX3169x1","price":4.54,"currency_code":"USD","in_stock":true},{"title":"10mm \/ 300XL【perimeter 762mm】 \/ 1pcs","offer_id":52367961719058,"sku":"LFLKKMX3170x1","price":4.61,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0884\/8936\/1682\/files\/Picture1of8_2718aaec-6f1d-4e0b-9dce-15c6e5b25155.jpg?v=1781501410","url":"https:\/\/homediyer.com\/de\/products\/xl-timing-belt-5-08mm-pitch-10mm-wide-70xl-300xl","provider":"HomeDIYer","version":"1.0","type":"link"}