{"product_id":"black-pulley-bore-5mm-width-6mm-by-runice","title":"Black 20T Pulley Bore 5mm Width 6mm by Runice","description":"\u003cp\u003e\u003cstrong\u003eBlack Runice GT2 20-tooth timing pulley for 5 mm motor shafts and 6 mm belts.\u003c\/strong\u003e This is the black-finished Runice RLA20-2GT-6-C-P5-H16 pulley used in precise belt-driven motion systems such as Voron-style 3D printers.\u003c\/p\u003e\n\u003ch3\u003eWhy this pulley\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e2GT \/ GT2, 20-tooth profile\u003c\/strong\u003e for common 3D-printer XY and motion drives.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e5 mm bore\u003c\/strong\u003e fits the standard shaft size on many NEMA 17 stepper motors.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e6 mm belt width\u003c\/strong\u003e matches common Gates and GT2 belt layouts.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTwo M4 set screws\u003c\/strong\u003e clamp the pulley to the shaft; the flanged body helps keep the belt tracked.\u003c\/li\u003e\n\u003cli\u003eBlack finish for builds where the visible motion hardware should stay dark.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eManufacturer: \u003cstrong\u003eRunice\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eManufacturer drawing \/ MPN: \u003cstrong\u003eRLA20-2GT-6-C-P5-H16\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eTooth profile: \u003cstrong\u003e2GT \/ GT2\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eTooth count: \u003cstrong\u003e20T\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eBore: \u003cstrong\u003e5.000 mm H7\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eBelt width: \u003cstrong\u003e6 mm\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eOverall length: \u003cstrong\u003e16.0 mm\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eSet screws: \u003cstrong\u003e2 × M4 × 0.7\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eFinish: \u003cstrong\u003eblack\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eFitment and pairing\u003c\/h3\u003e\n\u003cp\u003eThis pulley is listed in the \u003ca href=\"https:\/\/dfh.fm\/products\/voron-2-4-motion-kit-1\"\u003eVoron 2.4 Motion Kit\u003c\/a\u003e BOM as the 20T B5W6 Runice RLA20-2GT-6-C-P5-H16 pulley. For nearby options, compare the \u003ca href=\"https:\/\/dfh.fm\/products\/20t-pulley-bore-5mm-width-6mm-by-runice\"\u003estandard 20T 5 mm bore \/ 6 mm width Runice pulley\u003c\/a\u003e or the \u003ca href=\"https:\/\/dfh.fm\/products\/black-pulley-bore-5mm-width-9mm-by-runice\"\u003eblack 20T 5 mm bore \/ 9 mm width Runice pulley\u003c\/a\u003e.\u003c\/p\u003e\n\u003ch3\u003eGotchas\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eThis is for \u003cstrong\u003e6 mm GT2\/2GT belt\u003c\/strong\u003e; do not use it where the build calls for a 9 mm or 10 mm belt pulley.\u003c\/li\u003e\n\u003cli\u003eIt is a drive pulley, not a free-spinning idler.\u003c\/li\u003e\n\u003cli\u003eCheck pulley height and belt path against your specific motion system before ordering replacements for non-Voron machines.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cblockquote\u003e“They fulfill their purpose and the paint seems to be fine.”\u003c\/blockquote\u003e","brand":"Runice","offers":[{"title":"Default Title","offer_id":42908218949854,"sku":"9420152248","price":6.5,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0556\/9767\/0313\/products\/IMG_1968.png?v=1654443033","url":"https:\/\/formosissima.myshopify.com\/products\/black-pulley-bore-5mm-width-6mm-by-runice","provider":"dfh.fm","version":"1.0","type":"link"}