{"product_id":"martin-4b124sk-4-b-124-sk-msg-power-arm-spoke-type-a-3-replacement-mpn","title":"Martin 4B124SK 4 B 124 SK MSG Power Arm\/Spoke Type A-3 Replacement MPN","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe Martin 4B124SK is an Arm\/Spoke Type A-3 conventional sheave designed for reliable performance. This sheave features a QD® bushed bore ranging from half inch to two and five-eighth inches and an outside diameter of twelve and three-fourths inches. With a pitch diameter of twelve and four-tenths inches, it accommodates four grooves and a face width of three and one-fourth inches.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eManufactured from class 30 gray iron\u003c\/li\u003e\n\u003cli\u003eMaximum speed of six thousand five hundred feet per minute\u003c\/li\u003e\n\u003cli\u003eDynamic balancing is recommended for speeds over five thousand feet per minute\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eProduct Highlights\u003c\/h4\u003e\u003cp\u003eThis conventional sheave is statically balanced and provides high quality with precise machining. It is equipped for use with AB cross-section V-belts and is suitable for various applications.\u003c\/p\u003e\u003ch3\u003eProduct Information\u003c\/h3\u003e\u003ch4\u003eStandard Information\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand\u003c\/strong\u003e: Martin\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer\u003c\/strong\u003e: Martin Sprocket \u0026amp; Gear\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial\u003c\/strong\u003e: Cast Iron\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBore Type\u003c\/strong\u003e: QD® Bushed\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFace Width\u003c\/strong\u003e: 3-1\/4 in\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBushing Type\u003c\/strong\u003e: SK\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBore Diameter\u003c\/strong\u003e: 1\/2 to 2-5\/8 in\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 3-1\/4 in\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePitch Diameter\u003c\/strong\u003e: 12.4 in\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOutside Diameter\u003c\/strong\u003e: 12-3\/4 in\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCountry of Origin\u003c\/strong\u003e: US\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNumber of Grooves\u003c\/strong\u003e: 4\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSuitable For Use With\u003c\/strong\u003e: AB Cross Section V-Belts\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"MARTIN SPROCKET \u0026 GEAR","offers":[{"title":"Default Title","offer_id":50433530626354,"sku":"4B124SK","price":14.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/251639364.jpg?v=1758434050","url":"https:\/\/voomisupply.com\/products\/martin-4b124sk-4-b-124-sk-msg-power-arm-spoke-type-a-3-replacement-mpn","provider":"Voomi Supply","version":"1.0","type":"link"}