{"product_id":"sk-style-qd-bushing-ductile-iron","title":"SK-Style QD Bushing for Sheaves \u0026 Pulleys — Ductile Iron, Keyed","description":"\u003cp\u003eThe SK-style QD (Quick-Disconnect) bushing provides a fast, secure way to mount SK-bored sheaves, sprockets, and pulleys onto a drive shaft. Its tapered, flange-split design draws tight as the cap screws are torqued, locking the component concentrically to the shaft for true running and easy removal — no pullers required.\u003c\/p\u003e\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eDuctile iron construction for high strength and long service life\u003c\/li\u003e\n\u003cli\u003eTapered, flange-split design for a secure, concentric grip on the shaft\u003c\/li\u003e\n\u003cli\u003eSupplied with three Grade-5 cap screws plus a set screw over the keyway for added holding power\u003c\/li\u003e\n\u003cli\u003eStandard keyway machined to each bore size\u003c\/li\u003e\n\u003cli\u003eInterchangeable with SK-series QD-bushed sheaves, sprockets, and pulleys\u003c\/li\u003e\n\u003cli\u003eQuick installation and removal to minimize drive downtime\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eStandard SK-Series Dimensions\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eOutside diameter: 3.875\"\u003c\/li\u003e\n\u003cli\u003eLength through bore: 1.8125\"\u003c\/li\u003e\n\u003cli\u003eCap screws: three 5\/16\" x 2\" (Grade 5)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eAvailable Bores\u003c\/h3\u003e\n\u003cp\u003e5\/8\", 3\/4\", 7\/8\", 1\", 1-1\/8\", 1-3\/8\", 1-5\/8\", 1-7\/8\", 2-1\/8\", and 2-3\/8\". Select your required bore above.\u003c\/p\u003e\n\u003ch3\u003eApplications\u003c\/h3\u003e\n\u003cp\u003eIdeal for belt and chain drives on air compressors, conveyors, blowers, pumps, agricultural equipment, and general industrial power-transmission systems.\u003c\/p\u003e\n\u003cp\u003eThe SK-style QD bushing is the standard, field-proven mounting solution for SK-bored components — delivering reliable torque transmission and hassle-free maintenance.\u003c\/p\u003e","brand":"Warthog Air Compressor Store","offers":[{"title":"5\/8\"","offer_id":54385669374227,"sku":"SKx5\/8","price":46.0,"currency_code":"USD","in_stock":true},{"title":"3\/4\"","offer_id":54385669406995,"sku":"SKx3\/4","price":46.0,"currency_code":"USD","in_stock":true},{"title":"7\/8\"","offer_id":54385669439763,"sku":"SKx7\/8","price":46.0,"currency_code":"USD","in_stock":true},{"title":"1\"","offer_id":54385669472531,"sku":"SKx1","price":46.0,"currency_code":"USD","in_stock":true},{"title":"1-1\/8\"","offer_id":54385669505299,"sku":"SKx1-1\/8","price":46.0,"currency_code":"USD","in_stock":true},{"title":"1-3\/8\"","offer_id":54385669538067,"sku":"SKx1-3\/8","price":46.0,"currency_code":"USD","in_stock":true},{"title":"1-5\/8\"","offer_id":54385669570835,"sku":"SKx1-5\/8","price":46.0,"currency_code":"USD","in_stock":true},{"title":"1-7\/8\"","offer_id":54385669603603,"sku":"SKx1-7\/8","price":46.0,"currency_code":"USD","in_stock":true},{"title":"2-1\/8\"","offer_id":54385669636371,"sku":"SKx2-1\/8","price":46.0,"currency_code":"USD","in_stock":true},{"title":"2-3\/8\"","offer_id":54385669669139,"sku":"SKx2-3\/8","price":46.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0825\/3141\/8387\/files\/QD-Bushing-MDS-of-Michigan.webp?v=1783367252","url":"https:\/\/aircompressorstore.com\/products\/sk-style-qd-bushing-ductile-iron","provider":"Warthog Air Compressor Store","version":"1.0","type":"link"}