{"product_id":"khk-sw0-5-r2-module-0-5-double-lead-right-hand-carbon-steel-worms","title":"KHK SW0.5-R2, Module 0.5, Double Lead, Right Hand, Carbon Steel Worms","description":"\u003cp\u003e\u003cstrong\u003eKHK SW0.5-R2 is a compact, double-start right-hand steel worm for small worm-drive extruder and motion projects that specify the KHK SW series.\u003c\/strong\u003e Module \u003cstrong\u003e0.5\u003c\/strong\u003e, \u003cstrong\u003e2 starts\u003c\/strong\u003e, \u003cstrong\u003e5 mm bore\u003c\/strong\u003e, and \u003cstrong\u003e18 mm overall length\u003c\/strong\u003e make it a very small precision drive part—not a generic hobbed pulley or printed substitute.\u003c\/p\u003e\n\u003ch3\u003eWhy this part\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eExact KHK catalog part:\u003c\/strong\u003e SW0.5-R2, the right-hand, double-start version of KHK’s SW carbon-steel worm series.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFine module drive:\u003c\/strong\u003e module \u003cstrong\u003e0.5\u003c\/strong\u003e with a nominal lead angle of \u003cstrong\u003e5°13′\u003c\/strong\u003e for compact worm gear reductions.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMachined steel body:\u003c\/strong\u003e S45C \/ AISI 1045 carbon steel with black oxide coating except on ground areas.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eServiceable mounting:\u003c\/strong\u003e \u003cstrong\u003e5 mm\u003c\/strong\u003e bore with an \u003cstrong\u003eM3\u003c\/strong\u003e set-screw hole.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eManufacturer \/ MPN: \u003cstrong\u003eKHK SW0.5-R2\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eGear type: \u003cstrong\u003eworm gear \/ worm\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eModule: \u003cstrong\u003e0.5\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eStarts: \u003cstrong\u003e2\u003c\/strong\u003e \/ double lead\u003c\/li\u003e\n\u003cli\u003eHand of thread: \u003cstrong\u003eright hand\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eMaterial: \u003cstrong\u003eS45C carbon steel\u003c\/strong\u003e (AISI 1045 equivalent)\u003c\/li\u003e\n\u003cli\u003ePrecision grade: \u003cstrong\u003eKHK W 001 grade 4\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003ePressure angle: \u003cstrong\u003e20°\u003c\/strong\u003e, normal plane, standard full-depth teeth\u003c\/li\u003e\n\u003cli\u003eBore: \u003cstrong\u003e5 mm\u003c\/strong\u003e; pitch diameter: \u003cstrong\u003e11 mm\u003c\/strong\u003e; outside diameter: \u003cstrong\u003e12 mm\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eFace width: \u003cstrong\u003e10 mm\u003c\/strong\u003e; total length: \u003cstrong\u003e18 mm\u003c\/strong\u003e; set screw: \u003cstrong\u003eM3\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eApprox. weight: \u003cstrong\u003e0.01 kg\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eFitment and pairing\u003c\/h3\u003e\n\u003cp\u003eUse this where your BOM or project notes call out \u003cstrong\u003eKHK SW0.5-R2\u003c\/strong\u003e specifically. Community listings call out Kyro-style extruder use and Annex DFA fitment, but worm gears are geometry-sensitive—match module, starts, hand, bore, and the mating worm wheel before ordering.\u003c\/p\u003e\n\u003cp\u003eLooking at the adjacent KHK family? The live store also has the \u003ca href=\"https:\/\/dfh.fm\/products\/khk-dg0-5-40r1-module-0-5-40-tooth-single-start-right-hand-acetal-worm-wheels\"\u003eKHK DG0.5-40R1 module 0.5 acetal worm wheel\u003c\/a\u003e; treat it as a related KHK module 0.5 part, not an automatic mate for this R2 worm.\u003c\/p\u003e\n\u003ch3\u003eWhat it is not\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eNot a complete extruder kit.\u003c\/li\u003e\n\u003cli\u003eNot a generic brass worm or printed gear.\u003c\/li\u003e\n\u003cli\u003eNot interchangeable with single-start R1 worms unless your design explicitly allows it.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"KHK","offers":[{"title":"Default Title","offer_id":43508389282014,"sku":"5138827686","price":16.5,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0556\/9767\/0313\/products\/SW_lg.jpg?v=1665357177","url":"https:\/\/formosissima.myshopify.com\/products\/khk-sw0-5-r2-module-0-5-double-lead-right-hand-carbon-steel-worms","provider":"dfh.fm","version":"1.0","type":"link"}