{"product_id":"nart40r-roller-follower-metric-40-mm-inside-diamet","title":"NART40R Roller Follower Metric 40 mm Inside Diameter Non-Separable Caged High-Carbon Chrome Steel Open Crowned Assembly with Oil Hole for Linear Slide Units and Cam Followers","description":"Single Metric 40 mm NART40R caged roller follower\u003cbr\u003e\n✔️ 40 mm ID; 80 mm rollers; caged non-separable; oil hole; -20 to 120°C\n\n\u003cp\u003eThis single bearing is a caged, non-separable metric roller follower used for linear slide units, cam tracking, conveyor guides and heavy-duty machinery.\u003c\/p\u003e\n\n✅ ID: 40 mm\u003cbr\u003e\n✅ Roller diameter: 80 mm, width: 30 mm\u003cbr\u003e\n✅ Overall width: 32 mm; caged retainer, non-separable\u003cbr\u003e\n✅ Material: high-carbon chrome steel, crowned roller surface\u003cbr\u003e\n✅ Open design with oil hole for re-lubrication\u003cbr\u003e\n✅ Dynamic load 44,900 N; Static load 81,500 N\u003cbr\u003e\n✅ Temp range -20 to 120°C; sold as single bearing\u003cbr\u003e\n\n\u003cp\u003e💡 What is a roller follower used for in linear slide units and cam follower applications?\nRoller followers provide low-friction rolling contact to guide cams, rails, and slides.\n- They reduce friction and wear in linear slide units and cam mechanisms, improving smooth motion and lifespan.\n- Commonly used in conveyor systems, indexed mechanisms, and cam tracking where crowned rollers help alignment.\n- A handy choice when you need higher load capacity and impact resistance versus a sealed ball bearing or ceramic option.\u003c\/p\u003e","brand":"Bearings Canada","offers":[{"title":"Default Title","offer_id":52511307039039,"sku":"863266","price":362.65,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0887\/4750\/8031\/files\/roller-follower-40mm-caged-steel.png?v=1776639818","url":"https:\/\/bearingscanada.com\/products\/nart40r-roller-follower-metric-40-mm-inside-diamet","provider":"Bearings Canada","version":"1.0","type":"link"}