Single Machined Needle Roller Bearing NA499 NA49 Metric Series Inner Ring 9 mm ID x 20 mm OD x 11 mm Width High Carbon Steel Caged Open Type With Oil Hole for Linear Slide Units and Shaft Support

Single machined needle roller bearing NA499
✔️ 9 mm ID x 20 mm OD x 11 mm W; high carbon steel; oil hole

This single NA499 machined needle roller bearing is a compact inner-ring caged unit used for shaft support, linear slide units, machine tools and other precision assemblies.

✅ Model: NA499, NA49 Metric Series; caged machined unit
✅ Dimensions: 9 mm ID x 20 mm OD x 11 mm width
✅ Material: high carbon steel; open enclosure with oil holes for lubrication
✅ Load ratings: dynamic 6600 N; static 6310 N; max speed 35000 rpm
✅ Use cases: linear slide unit rails, small-diameter shaft support, precision machinery
✅ Sold as a single bearing; SKU 861951; weight 1.000 lb; UOM each

💡 What is a needle roller bearing used for in linear slide units and shaft support? Needle roller bearings provide high radial load capacity in a low-profile package and are a handy choice when space and stiffness are critical in precision motion systems. Quick intro: Ideal for tight-fit, high-load applications requiring reliable radial support. - High radial load capacity for compact shaft supports and linear slide units, improving rigidity and service life. - Low cross-section design fits tighter housings than many sealed ball bearing setups, saving envelope space in assemblies. - Lubrication features like oil holes and inner rings enable dependable high-speed operation and easier maintenance.