{"product_id":"inner-ring-irt4540-metric-45-mm-id-50-mm-od-405-mm","title":"Inner Ring IRT4540 Metric 45 mm ID 50 mm OD 40.5 mm Width Shell Type High Carbon Steel Fits TA5040Z Needle Roller Assembly Race for Linear Slide Units Sealed Ball Bearing Replacement","description":"Single inner ring IRT4540, metric taper race\u003cbr\u003e\n✔️ 45 mm ID x 50 mm OD x 40.5 mm width; high carbon steel; fits TA5040Z\n\n\u003cp\u003eThis single metric inner ring is a precision tapered race for shell type needle roller bearing assemblies, commonly used in linear slide units, conveyors, and automation equipment where an accurate inner race is required.\u003c\/p\u003e\n\n✅ Model: IRT4540 (Metric IRT series)\u003cbr\u003e\n✅ Bore type: Tapered inner race\u003cbr\u003e\n✅ Dimensions: 45 mm ID, 50 mm OD, 40.5 mm width\u003cbr\u003e\n✅ Material: High carbon steel, no oil hole\u003cbr\u003e\n✅ Fits with: TA5040Z shell type needle roller assembly\u003cbr\u003e\n✅ Pack: Single inner ring, weight approx 0.260 lb\u003cbr\u003e\n\n\u003cp\u003e💡 What is an inner ring used for in needle roller bearing assemblies? An inner ring serves as the hardened contact surface for needle rollers, keeping rollers aligned and sharing radial loads, which improves durability and accuracy in compact bearing setups. Handy to know when replacing or rebuilding bearing assemblies.\n- Provides a hardened inner race surface for needle roller bearing performance and extended life.\n- Ensures precise fit with metric tapered bores and shell type roller assemblies for linear slide units.\n- Helps convert a shell type roller into a sealed ball bearing replacement when matched with the correct TA shell for maintenance and repair.\u003c\/p\u003e","brand":"MRO","offers":[{"title":"Default Title","offer_id":47969359659243,"sku":"861995","price":49.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0662\/3268\/0683\/files\/e1760f99a99f9e4ba0ab85ed8d820861.png?v=1775237220","url":"https:\/\/vxb.com\/products\/inner-ring-irt4540-metric-45-mm-id-50-mm-od-405-mm","provider":"VXB Bearings","version":"1.0","type":"link"}