{"product_id":"roller-follower-nart20r-single-metric-20-mm-id-non","title":"Roller follower NART20R single metric 20 mm ID non-separable caged high-carbon chrome steel open crowned with oil hole for linear slide units sealed ball bearing alternative","description":"Single metric 20 mm roller follower NART20R\u003cbr\u003e\n✔️ Non-separable caged, high-carbon chrome steel, open, oil hole\n\n\u003cp\u003eThis single roller follower is a non-separable, caged metric bearing (20 mm ID) designed for linear slide units, cam followers, automation equipment, conveyors and machine-tool applications. It provides smooth contact with a crowned roller profile and an oil hole for easy re-lubrication.\u003c\/p\u003e\n\n✅ Model NART20R, single unit, NART Metric Series\u003cbr\u003e\n✅ Inside diameter (ID): 20 mm\u003cbr\u003e\n✅ Roller diameter: 47 mm, roller width: 24 mm\u003cbr\u003e\n✅ Overall width: 25 mm, caged retainer\u003cbr\u003e\n✅ Material: high carbon chrome steel, crowned roller surface\u003cbr\u003e\n✅ Type: caged non-separable, open design with oil hole\u003cbr\u003e\n✅ Dynamic load capacity: 23000 N, static load: 30700 N\u003cbr\u003e\n✅ Temperature rating: -20 to 120 °C, for linear slide unit duty\u003cbr\u003e\n\n\u003cp\u003e💡 What is a roller follower used for in linear slide units?\nA roller follower supports radial loads and tracks cams or guide rails to convert motion while minimizing friction and wear. It’s a handy component for precise motion control in automated systems.\nQuick summary:\n- Supports radial and moderate axial loads for linear slide units and cam-following tasks\n- Crowned roller profile reduces edge loading for smoother motion and longer life\n- Caged design limits roller-to-roller contact for higher speeds and better reliability\n- Often chosen over sealed ball bearing or pillow block bearing when cam contact and relubrication access are needed\u003c\/p\u003e","brand":"Bearings Canada","offers":[{"title":"Default Title","offer_id":52511404982591,"sku":"862725","price":203.11,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0887\/4750\/8031\/files\/roller-follower-nart20r-20mm-chrome-steel.png?v=1776637792","url":"https:\/\/bearingscanada.com\/products\/roller-follower-nart20r-single-metric-20-mm-id-non","provider":"Bearings Canada","version":"1.0","type":"link"}