{"product_id":"inner-ring-lrtz202531-metric-needle-race-20-mm-id","title":"Inner Ring LRTZ202531 Metric needle race, 20 mm ID x 25 mm OD x 31 mm width, high carbon steel for assembly with RNA6904UU, general use in linear slide units and machinery","description":"Metric inner ring LRTZ202531, 20x25x31 mm race\u003cbr\u003e\n✔️ High-carbon steel inner race, machined for RNA6904UU, 1 pc\n\n\u003cp\u003eThis inner ring (metric inner race) is made for needle roller assemblies and is commonly used in linear slide units, machine tools and general industrial machinery. Sold as a single replacement piece for quick repairs.\u003c\/p\u003e\n\n✅ Part: LRTZ202531 metric inner ring \u003cbr\u003e\n✅ Bore (I.D.): 20 mm \u003cbr\u003e\n✅ Outside Diameter (O.D.): 25 mm \u003cbr\u003e\n✅ Width: 31 mm, machined race \u003cbr\u003e\n✅ Material: high carbon steel, precision ground \u003cbr\u003e\n✅ Fits needle roller bearing RNA6904UU; single piece pack \u003cbr\u003e\n\n\u003cp\u003e💡 What is an inner ring used for in needle roller bearings? An inner ring provides the precision raceway that supports needle rollers and restores smooth motion. Here’s why it’s handy:\n- Gives a hardened raceway for needle roller bearing inner ring applications in linear slide units.\n- Restores alignment and load distribution for machine tool guides and bearing assemblies.\n- Ideal for replacement in repair jobs where sealed ball bearing or ceramic options aren’t used.\u003c\/p\u003e","brand":"MRO","offers":[{"title":"Default Title","offer_id":47969374077163,"sku":"861588","price":29.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0662\/3268\/0683\/files\/4602416b4522eeb4d6356477956e90e1.png?v=1775237562","url":"https:\/\/vxb.com\/products\/inner-ring-lrtz202531-metric-needle-race-20-mm-id","provider":"VXB Bearings","version":"1.0","type":"link"}