{"product_id":"lrt505540-inner-ring-metric-tapered-bore-50-mm-id","title":"LRT505540 Inner Ring, Metric Tapered Bore 50 mm ID x 55 mm OD x 40 mm Width, High Carbon Steel inner race for needle roller bearings, fits RNAFW556840, single bearing replacement","description":"Single LRT505540 inner ring, metric 50 mm ID x 55 mm OD\u003cbr\u003e\n✔️ Metric tapered bore 50 mm ID, 55 mm OD, 40 mm width, HCS\n\n\u003cp\u003eThis is a single metric inner ring (inner race) for needle roller bearing assemblies used in linear slide units, transmissions, and industrial equipment. It provides a precise raceway where compact radial space and accurate motion are needed.\u003c\/p\u003e\n\n✅ Model: LRT505540 inner ring, Metric LRT series\u003cbr\u003e\n✅ Bore type: Tapered bore for matched RNAFW556840\u003cbr\u003e\n✅ Dimensions: 50 mm ID, 55 mm OD, 40 mm width\u003cbr\u003e\n✅ Material: High carbon steel, machined inner race\u003cbr\u003e\n✅ For: Needle roller bearings, linear slide unit guides, and compact drives\u003cbr\u003e\n✅ Pack: Single bearing inner ring, sold as 1 piece\u003cbr\u003e\n\n\u003cp\u003e💡 What is an inner ring for a needle roller bearing used for?\nAn inner ring gives needle rollers a hardened, precise raceway so assemblies run truer and last longer.\n- Improves load capacity and smooth motion in linear slide units and compact roller setups.\n- Enables needle roller bearings to work alongside sealed ball bearing arrangements or ceramic parts.\n- Helps with alignment, reduces wear, and extends service life compared with a bare shaft.\u003c\/p\u003e","brand":"MRO","offers":[{"title":"Default Title","offer_id":47969454129387,"sku":"862135","price":57.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0662\/3268\/0683\/files\/lrt505540-inner-ring-50x55x40mm-steel.png?v=1775239322","url":"https:\/\/vxb.com\/products\/lrt505540-inner-ring-metric-tapered-bore-50-mm-id","provider":"VXB Bearings","version":"1.0","type":"link"}