{"product_id":"51300-series-heavy-duty-thrust-ball-bearings-51305-51310-51320-51318","title":"51300 Series ISO Metric Heavy-Duty Thrust Ball Bearings","description":"\u003cp data-path-to-node=\"1\"\u003eThe \u003cb data-path-to-node=\"1\" data-index-in-node=\"4\"\u003e51300 Series\u003c\/b\u003e is an ISO \u003cb data-path-to-node=\"1\" data-index-in-node=\"118\"\u003e\u003cspan style=\"box-sizing: border-box; margin: 0px; padding: 0px;\"\u003emetric-dimension series of single-direction thrust ball bearings designed specifically for \u003cstrong\u003eheavy-duty axial-load\u003c\/strong\u003e\u003c\/span\u003e applications\u003c\/b\u003e. Compared to the 51100 (extra-light series) and 51200 (medium-light series), the 51300 series features significantly larger steel balls and thicker raceway rings, granting it exceptional axial rigidity and high dynamic load capacity under heavy thrust forces.\u003c\/p\u003e\n\u003ch2 data-path-to-node=\"3\"\u003eKey Features \u0026amp; Construction\u003c\/h2\u003e\n\u003cul data-path-to-node=\"4\"\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"4,0,0\"\u003e\u003cb data-path-to-node=\"4,0,0\" data-index-in-node=\"0\"\u003e3-Piece Separable Design:\u003c\/b\u003e Comprises a \u003cb data-path-to-node=\"4,0,0\" data-index-in-node=\"38\"\u003eshaft washer\u003c\/b\u003e (tight fit on the shaft), a \u003cb data-path-to-node=\"4,0,0\" data-index-in-node=\"79\"\u003ehousing washer\u003c\/b\u003e (loose fit in the housing bore), and a \u003cb data-path-to-node=\"4,0,0\" data-index-in-node=\"133\"\u003eguided ball-and-cage assembly\u003c\/b\u003e.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"4,1,0\"\u003e\u003cb data-path-to-node=\"4,1,0\" data-index-in-node=\"0\"\u003ePure Axial Load Capability:\u003c\/b\u003e Designed to accommodate heavy loads parallel to the shaft in a single direction (\u003cspan class=\"math-inline\" data-math=\"90^\\circ\" data-index-in-node=\"109\"\u003e$90^\\circ$\u003c\/span\u003e contact angle). \u003ci data-path-to-node=\"4,1,0\" data-index-in-node=\"134\"\u003eNote: Cannot withstand any radial forces.\u003c\/i\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"4,2,0\"\u003e\u003cb data-path-to-node=\"4,2,0\" data-index-in-node=\"0\"\u003eHigh Load Capacity:\u003c\/b\u003e Thick washers and larger rolling elements absorb heavy operational thrust, shock loads, and peak press forces.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"4,3,0\"\u003e\u003cb data-path-to-node=\"4,3,0\" data-index-in-node=\"0\"\u003eFlat-Seat Mounting:\u003c\/b\u003e Standard 51300 series bearings feature flat seats for direct, rigid mounting against flat shaft steps and housing shoulders.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2 data-path-to-node=\"12\"\u003eCommon Industrial Applications\u003c\/h2\u003e\n\u003cul data-path-to-node=\"13\"\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"13,0,0\"\u003e\u003cb data-path-to-node=\"13,0,0\" data-index-in-node=\"0\"\u003eCrane Hooks \u0026amp; Hoisting Equipment:\u003c\/b\u003e To support heavy suspended loads while allowing smooth rotational swiveling.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"13,1,0\"\u003e\u003cb data-path-to-node=\"13,1,0\" data-index-in-node=\"0\"\u003eScrew Jacks \u0026amp; Mechanical Actuators:\u003c\/b\u003e Transmitting heavy vertical linear thrust.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"13,2,0\"\u003e\u003cb data-path-to-node=\"13,2,0\" data-index-in-node=\"0\"\u003eHeavy Lathe Machine Tailstocks:\u003c\/b\u003e Supporting intense workpiece clamping forces.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"13,3,0\"\u003e\u003cb data-path-to-node=\"13,3,0\" data-index-in-node=\"0\"\u003eVertical centrifuges \u0026amp; Heavy Pumps:\u003c\/b\u003e Absorbing axial fluid\/impeller thrust.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"13,4,0\"\u003e\u003cb data-path-to-node=\"13,4,0\" data-index-in-node=\"0\"\u003eIndustrial Valves \u0026amp; Rotary Tables:\u003c\/b\u003e Operating under high axial seal pressures.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2 data-path-to-node=\"15\"\u003eMounting \u0026amp; Maintenance Instructions\u003c\/h2\u003e\n\u003col start=\"1\" data-path-to-node=\"16\"\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"16,0,0\"\u003e\u003cb data-path-to-node=\"16,0,0\" data-index-in-node=\"0\"\u003eShaft vs. Housing Washer Fit:\u003c\/b\u003e Ensure the \u003cb data-path-to-node=\"16,0,0\" data-index-in-node=\"41\"\u003eshaft washer\u003c\/b\u003e (smaller inner diameter, tight fit) is seated directly against the shaft shoulder. The \u003cb data-path-to-node=\"16,0,0\" data-index-in-node=\"141\"\u003ehousing washer\u003c\/b\u003e (larger inner diameter, loose fit) must sit in the stationary housing bore.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"16,1,0\"\u003e\u003cb data-path-to-node=\"16,1,0\" data-index-in-node=\"0\"\u003eAlignment \u0026amp; Squareness:\u003c\/b\u003e Raceways must sit strictly perpendicular to the axis of rotation (\u003cspan class=\"math-inline\" data-math=\"90^\\circ\" data-index-in-node=\"90\"\u003e$90^\\circ$\u003c\/span\u003e). Misalignment causes concentrated stress on one side of the ring, leading to micro-spalling.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"16,2,0\"\u003e\u003cb data-path-to-node=\"16,2,0\" data-index-in-node=\"0\"\u003eMinimum Preload:\u003c\/b\u003e Maintain a continuous minimum axial force (\u003cspan class=\"math-inline\" data-math=\"F_{a\\text{ min}}\" data-index-in-node=\"60\"\u003e$F_{a\\text{ min}}$\u003c\/span\u003e) to prevent ball skidding or cage distortion during high-speed rotation or dynamic unload cycles.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ol\u003e","brand":"Rajasthan Bearing \u0026 Mill Stores","offers":[{"title":"Default Title","offer_id":67590456246366,"sku":null,"price":0.0,"currency_code":"INR","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0664\/2132\/5918\/files\/51307_BCI.jpg?v=1790594961","url":"https:\/\/rajasthanbearingskolkata.co.in\/products\/51300-series-heavy-duty-thrust-ball-bearings-51305-51310-51320-51318","provider":"Rajasthan Bearing \u0026 Mill Stores","version":"1.0","type":"link"}