{"product_id":"lrt455520-s-lrt-series-tapered-bore-needle-roller","title":"LRT455520-S LRT Series tapered bore needle roller inner ring, 45 mm I.D. x 55 mm O.D. x 20 mm width, single bearing unit for NAST45\/NAST45R assemblies, high carbon steel, sealed ball bearing alternative, linear slide unit ready","description":"Tapered bore inner ring 45 mm I.D. single unit\u003cbr\u003e\n✔️ 45 mm I.D. x 55 mm O.D. x 20 mm width; High carbon steel; LRT series\n\n\u003cp\u003eThis single LRT series tapered bore inner ring is an inner race for needle roller bearings, typically used in linear slide units, compact gearboxes and transmission components where a matched NAST45 or NAST45R assembly is required.\u003c\/p\u003e\n\n✅ Tapered inner bore I.D. 45 mm\u003cbr\u003e\n✅ Outer diameter O.D. 55 mm\u003cbr\u003e\n✅ Overall width 20 mm\u003cbr\u003e\n✅ High carbon steel inner ring, LRT metric series\u003cbr\u003e\n✅ Compatible with NAST45 and NAST45R machined type assemblies\u003cbr\u003e\n✅ Single bearing pack, SKU 861522, weight 0.260 lb\u003cbr\u003e\n\n\u003cp\u003e💡 What is a needle roller inner ring used for in linear slide units? A needle roller inner ring acts as the hardened raceway that needle rollers run on, letting compact assemblies carry higher radial loads with less wear.\n\nQuick intro: This part supplies the inner raceway for compact needle roller systems, handy in tight linear slide units and compact transmissions.\n- Provides a precise hardened raceway for needle rollers to improve radial load support and service life.\n- Keeps rollers aligned in linear slide unit setups and small gearboxes for consistent motion.\n- Commonly paired with matched cages like NAST45 or NAST45R and used as an alternative to sealed ball bearing options.\u003c\/p\u003e","brand":"Bearings Canada","offers":[{"title":"Default Title","offer_id":52511267946815,"sku":"861522","price":53.28,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0887\/4750\/8031\/files\/lrt-series-tapered-inner-ring-45mm.jpg?v=1776640471","url":"https:\/\/bearingscanada.com\/products\/lrt455520-s-lrt-series-tapered-bore-needle-roller","provider":"Bearings Canada","version":"1.0","type":"link"}