{"product_id":"skf-3311-atn9-c3-2-row-ball-bearing-55-mm-id-120-mm-od-49-2-mm-race-width_3311-atn9-c3","title":"SKF 3311 ATN9\/C3 2 Row Ball Bearing - 55 mm ID, 120 mm OD 49.2 mm Race Width_3311 ATN9\/C3","description":"\u003cp\u003eThis ball bearing is a two-row angular contact unit designed to support combined radial and axial loads in machinery. It features steel races and rolling elements, an open configuration for maintenance access, and a non-metallic cage to reduce noise and friction during operation. The design suits rotating assemblies in precision equipment where controlled internal clearance is required.\u003c\/p\u003e\u003ch3\u003e\u003cb\u003eFeatures and Benefits\u003c\/b\u003e\u003c\/h3\u003e\u003cul\u003e\u003cli\u003e30° contact angle provides axial load-carrying capability • C3 internal clearance allows thermal expansion accommodation • Dynamic load capacity 112 kN improves operational durability • Static load capacity 81.5 kN resists static overloads • Limiting speed 5,300 r\/min supports high-speed applications • Grooved raceways enhance accurate load distribution\u003c\/li\u003e\u003c\/ul\u003e\u003ch3\u003e\u003cb\u003eApplications\u003c\/b\u003e\u003c\/h3\u003e\u003cul\u003e\u003cli\u003eSuitable for spindle systems in automation equipment • Ideal for electric motor bearing arrangements • Used for precision gearboxes in industrial machinery • Can be used for rotary assemblies in electronic manufacturing\u003c\/li\u003e\u003c\/ul\u003e\u003ch3\u003e\u003cb\u003eWhat materials contact directly with rolling elements?\u003c\/b\u003e\u003c\/h3\u003e\u003cp\u003eThe rolling elements and raceways are MADE from steel to provide hardened contact surfaces and wear resistance.\u003c\/p\u003e\u003ch3\u003e\u003cb\u003eHow does the open end type affect lubrication options?\u003c\/b\u003e\u003c\/h3\u003e\u003cp\u003eThe open design permits the use of external lubrication methods and simplifies re-lubrication intervals for ongoing maintenance.\u003c\/p\u003e\u003ch3\u003e\u003cb\u003eWhat cage characteristics influence noise and friction?\u003c\/b\u003e\u003c\/h3\u003e\u003cp\u003eThe cage is non-metallic, which typically reduces vibration transmission and lowers friction compared with metal cages.\u003c\/p\u003e\u003ch3\u003e\u003cb\u003eHow does the bearing arrangement manage misalignment or shaft deflection?\u003c\/b\u003e\u003c\/h3\u003e\u003cp\u003eThe double-row angular contact configuration distributes loads across both rows, offering improved stiffness and tolerance to minor shaft deflection.\u003c\/p\u003e\u003ch3\u003e\u003cb\u003eAre there environmental or regulatory considerations for selection?\u003c\/b\u003e\u003c\/h3\u003e\u003cp\u003eThe product meets RoHS requirements, indicating restricted use of certain hazardous substances in its constituent materials.\u003c\/p\u003e\u003ch3\u003eSelection guidance\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eReview the manufacturer specifications for compatibility with your equipment.\u003c\/li\u003e\n\u003cli\u003eConfirm the required dimensions and fitting arrangement before ordering.\u003c\/li\u003e\n\u003cli\u003eCheck the intended operating conditions against the product documentation.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"SKF","offers":[{"title":"Default Title","offer_id":56506604323195,"sku":"SKF-462-755","price":401.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0283\/5408\/4963\/files\/Y0462755-01.jpg?v=1791921043","url":"https:\/\/tiedex.co.uk\/zh\/products\/skf-3311-atn9-c3-2-row-ball-bearing-55-mm-id-120-mm-od-49-2-mm-race-width_3311-atn9-c3","provider":"TIEDEX LIMITED","version":"1.0","type":"link"}