{"product_id":"machined-caged-needle-roller-bearing-rna4922uu-28","title":"Machined caged needle roller bearing RNA49\/22UU, 28 mm ID x 39 mm OD x 17 mm width, single bearing, high carbon steel, with oil hole and seals, one-row for linear slide and sealed ball bearing use","description":"Single sealed caged needle roller bearing, RNA49\/22UU\u003cbr\u003e\n✔️ 28 mm ID x 39 mm OD x 17 mm width, oil hole \u0026amp; seals, 7000 rpm\n\n\u003cp\u003eThis listing is for one single bearing, a machined caged needle roller ideal for high-load, compact assemblies like linear slide units, gearboxes, and actuator shafts. It ships as one sealed unit.\u003c\/p\u003e\n\n✅ Model: RNA49\/22UU, RNA49 Metric Series\u003cbr\u003e\n✅ Inner diameter 28 mm, outer diameter 39 mm, width 17 mm\u003cbr\u003e\n✅ Material: high carbon steel, machined caged design\u003cbr\u003e\n✅ Enclosure: synthetic rubber seals, with oil hole for relubrication\u003cbr\u003e\n✅ Dynamic load capacity 18,300 N, static load capacity 23,700 N\u003cbr\u003e\n✅ Maximum speed 7000 rpm, one-row needle roller configuration\u003cbr\u003e\n✅ Typical uses: linear slide units, actuator shafts, compact gearboxes\u003cbr\u003e\n\n\u003cp\u003e💡 What is a needle roller bearing used for in linear slide units and similar machinery?\nNeedle roller bearings deliver compact, high-radial-load support when space is tight and stiffness matters.\nQuick intro: Practical benefits for machine designers:\n- High radial load capacity in a narrow cross-section for linear slide units and actuator shafts.\n- A handy option when a sealed ball bearing is too large but you still need robust rolling elements.\n- Works well in oil-lubricated setups; an oil hole plus seals help with maintenance and longer service life.\u003c\/p\u003e","brand":"MRO","offers":[{"title":"Default Title","offer_id":47969420837099,"sku":"862406","price":73.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0662\/3268\/0683\/files\/160e17aa7417a50b52f32c546a82b347.png?v=1775238429","url":"https:\/\/vxb.com\/products\/machined-caged-needle-roller-bearing-rna4922uu-28","provider":"VXB Bearings","version":"1.0","type":"link"}