{"product_id":"timken-mm45bs100duh-ball-screw-support-bearing-set","title":"Timken MM45BS100DUH Ball Screw Support Bearing Set","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=\"1031\"\u003eThe Timken Fafnir MM45BS100 DUH is a matched duplex angular contact ball screw support bearing set consisting of two factory-matched single-row precision angular contact ball bearings arranged with a heavy preload (DUH). Designed specifically for ball screw support applications, this matched bearing set delivers high axial stiffness, precise shaft positioning, and excellent accuracy while supporting combined radial and axial loads. Commonly installed in CNC machine tools, precision automation equipment, industrial gearboxes, conveyors, machine positioning systems, and power transmission systems, the MM45BS100 DUH bearing set provides dependable performance in high-precision motion control applications. Maintenance teams, OEMs, and system integrators specify this matched duplex bearing set for equipment repair, replacement, machine rebuilds, and retrofits where factory-matched precision bearings are essential for maintaining positioning accuracy and service life. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3 data-section-id=\"5ms9th\" data-start=\"1033\" data-end=\"1050\"\u003eApplications:\u003c\/h3\u003e\n\u003cp data-start=\"1051\" data-end=\"1631\"\u003eThe Timken Fafnir MM45BS100 DUH matched duplex ball screw support bearing set is engineered for precision industrial applications requiring high rigidity and accurate axial positioning. It is widely used in CNC machining centers, ball screw assemblies, industrial automation equipment, machine tools, precision positioning systems, and power transmission systems where the heavy-preload duplex arrangement minimizes deflection, improves repeatability, distributes combined radial and axial loads efficiently, and extends bearing service life. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3 data-section-id=\"5hg6bl\" data-start=\"1633\" data-end=\"1662\"\u003eTechnical Specifications:\u003c\/h3\u003e\n\u003cp data-start=\"1663\" data-end=\"2538\"\u003e• Manufacturer: Timken Fafnir\u003cbr data-start=\"1692\" data-end=\"1695\"\u003e• Manufacturer Part Number (MPN): MM45BS100 DUH\u003cbr data-start=\"1742\" data-end=\"1745\"\u003e• Product Type: Matched duplex ball screw support bearing set\u003cbr data-start=\"1806\" data-end=\"1809\"\u003e• Bearing Type: Precision single-row angular contact ball bearings (duplex set)\u003cbr data-start=\"1888\" data-end=\"1891\"\u003e• Series: MM-BS (Ball Screw Support)\u003cbr data-start=\"1927\" data-end=\"1930\"\u003e• Design Series: DUH (Duplex, Heavy Preload)\u003cbr data-start=\"1974\" data-end=\"1977\"\u003e• Bore Diameter: 45 mm\u003cbr data-start=\"1999\" data-end=\"2002\"\u003e• Outside Diameter: 100 mm (3.9370 in)\u003cbr data-start=\"2040\" data-end=\"2043\"\u003e• Width(s): 22.5 mm per bearing; 45.0 mm total set width\u003cbr data-start=\"2099\" data-end=\"2102\"\u003e• Cage Type: Phenolic outer land riding cage\u003cbr data-start=\"2146\" data-end=\"2149\"\u003e• Material: Bearing steel with steel balls\u003cbr data-start=\"2191\" data-end=\"2194\"\u003e• Load Type: Combined radial and axial loads\u003cbr data-start=\"2238\" data-end=\"2241\"\u003e• Dynamic Rating: 16,010 lbf (71,200 N)\u003cbr data-start=\"2280\" data-end=\"2283\"\u003e• Static Rating: 21,000 lbf (93,400 N)\u003cbr data-start=\"2321\" data-end=\"2324\"\u003e• Contact Angle: 60°\u003cbr data-start=\"2344\" data-end=\"2347\"\u003e• Weight: Refer to manufacturer specification\u003cbr data-start=\"2392\" data-end=\"2395\"\u003e• Compatible Configuration: Factory-matched duplex set; not intended to be mixed with unmatched bearings. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3 data-section-id=\"1cz0398\" data-start=\"2540\" data-end=\"2564\"\u003eCommon Replacements:\u003c\/h3\u003e\n\u003cp data-start=\"2565\" data-end=\"2729\"\u003e• Timken Fafnir MM45BS100 DUH matched set\u003cbr data-start=\"2606\" data-end=\"2609\"\u003e• Timken Fafnir MM45BS100 DUL matched set (light preload)\u003cbr data-start=\"2666\" data-end=\"2669\"\u003e• OEM equivalent 45 mm duplex ball screw support bearing set\u003c\/p\u003e","brand":"Timken","offers":[{"title":"New","offer_id":51714034041134,"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_c0a827ce-1783-49b5-b5c5-8467ceddedef.jpg?v=1770414426","url":"https:\/\/plgautomation.com\/products\/timken-mm45bs100duh-ball-screw-support-bearing-set","provider":"PLG Automation ","version":"1.0","type":"link"}