{"product_id":"timken-28521b-bearing-taper","title":"TIMKEN 28521B BEARING TAPER","description":"\u003ch3 data-section-id=\"17lc1ru\" data-start=\"0\" data-end=\"16\" class=\"PDq2pG_selectionAnchorContainer\"\u003eDescription:\u003cspan aria-hidden=\"true\" class=\"PDq2pG_selectionAnchor\"\u003e\u003c\/span\u003e\n\u003c\/h3\u003e\n\u003cp data-start=\"17\" data-end=\"550\"\u003eThe Timken 28521B tapered roller bearing cup is a single-row flanged tapered roller bearing cup (outer race) designed for use with a compatible Timken tapered roller bearing cone to support combined radial and axial loads. Its flanged cup design provides positive axial location and improved seal alignment in through-bored housings. It is commonly used in industrial gearboxes, conveyor systems, mining equipment, agricultural machinery, wheel hubs, and heavy-duty power transmission equipment. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3 data-section-id=\"5ms9th\" data-start=\"552\" data-end=\"569\"\u003eApplications:\u003c\/h3\u003e\n\u003cp data-start=\"570\" data-end=\"1082\"\u003eThe Timken 28521B tapered roller bearing cup is engineered to operate with matching Timken tapered roller bearing cones, providing accurate shaft alignment, reduced friction, and high load capacity. The flanged cup design improves bearing positioning and seal retention, making it suitable for industrial gearboxes, conveyor drives, machine tools, axle assemblies, mining equipment, agricultural machinery, and material handling systems operating under demanding conditions. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3 data-section-id=\"5hg6bl\" data-start=\"1084\" data-end=\"1113\"\u003eTechnical Specifications:\u003c\/h3\u003e\n\u003cp data-start=\"1114\" data-end=\"2153\"\u003e• Manufacturer Part Number (MPN): 28521B\u003cbr data-start=\"1154\" data-end=\"1157\"\u003e• Manufacturer: Timken\u003cbr data-start=\"1179\" data-end=\"1182\"\u003e• Product Type: Tapered roller bearing cup (outer race)\u003cbr data-start=\"1237\" data-end=\"1240\"\u003e• Bearing Type: Single-row flanged tapered roller bearing cup (TSF)\u003cbr data-start=\"1307\" data-end=\"1310\"\u003e• Series: 28500\u003cbr data-start=\"1325\" data-end=\"1328\"\u003e• Component: Outer ring (cup)\u003cbr data-start=\"1357\" data-end=\"1360\"\u003e• Outside Diameter (OD): 3.6250 in (92.075 mm)\u003cbr data-start=\"1406\" data-end=\"1409\"\u003e• Outer Flange Diameter (D1): 3.7772 in (95.941 mm)\u003cbr data-start=\"1460\" data-end=\"1463\" data-is-only-node=\"\"\u003e• Cup Width (C): 0.7813 in (19.845 mm)\u003cbr data-start=\"1501\" data-end=\"1504\"\u003e• Cup Flange Width (C1): 0.1562 in (3.967 mm)\u003cbr data-start=\"1549\" data-end=\"1552\"\u003e• Cage Material (matching assembly): Stamped steel\u003cbr data-start=\"1602\" data-end=\"1605\"\u003e• Maximum Housing Fillet Radius: 0.030 in (0.80 mm)\u003cbr data-start=\"1656\" data-end=\"1659\"\u003e• Housing Frontface Backing Diameter (Da): 3.54 in (89.90 mm)\u003cbr data-start=\"1720\" data-end=\"1723\"\u003e• Weight: 1.5 lb (0.7 kg)\u003cbr data-start=\"1748\" data-end=\"1751\"\u003e• Compatible Cone: Timken 28584 (assembly 28584-28521B)\u003cbr data-start=\"1806\" data-end=\"1809\"\u003e• Function: Supports combined radial and axial loads when paired with a compatible Timken tapered roller bearing cone.\u003cbr data-start=\"1927\" data-end=\"1930\"\u003e• Features: Flanged cup design for positive axial location, precision-ground raceway, separable construction, high load capacity, and suitability for heavy-duty industrial applications. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3 data-section-id=\"1cz0398\" data-start=\"2155\" data-end=\"2179\"\u003eCommon Replacements:\u003c\/h3\u003e\n\u003cp data-start=\"2180\" data-end=\"2349\"\u003e• Timken \u003ca href=\"https:\/\/plgautomation.com\/products\/timken-28521b-bearing-taper?_pos=1\u0026amp;_sid=59847deaf\u0026amp;_ss=r\"\u003e28521B \u003c\/a\u003etapered roller bearing cup\u003cbr data-start=\"2222\" data-end=\"2225\"\u003e• SKF 28521B tapered roller bearing cup\u003cbr data-start=\"2264\" data-end=\"2267\"\u003e• NTN \u003ca href=\"https:\/\/plgautomation.com\/products\/timken-28521b-bearing-taper?_pos=1\u0026amp;_sid=fa25b204a\u0026amp;_ss=r\"\u003e28521B \u003c\/a\u003etapered roller bearing cup\u003c\/p\u003e","brand":"Timken","offers":[{"title":"New","offer_id":51714063270190,"sku":null,"price":0.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0940\/0818\/1038\/files\/Ebay_website_image_709d3c63-b2d8-4c78-8b81-b8f2fcdb853d.jpg?v=1770415372","url":"https:\/\/plgautomation.com\/products\/timken-28521b-bearing-taper","provider":"PLG Automation ","version":"1.0","type":"link"}