Single NA49/22UU Machined Needle Roller Bearing, 22 mm ID x 39 mm OD x 17 mm Width, High-Carbon Steel, Oil Hole, Sealed with Inner Ring, Caged Metric Series, High Load Capacity

Single NA49/22UU machined needle roller bearing
✔️ 22 mm ID x 39 mm OD x 17 mm width; high-carbon steel; sealed; oil hole

This is a single caged machined needle roller bearing with seals and an inner ring, built for compact, high-load radial support in machinery. Commonly used in linear slide units, gearboxes, and automotive linkages.

✅ NA49 metric series, machined caged type; inner ring included
✅ Inner diameter: 22 mm; Outer diameter: 39 mm; Width: 17 mm
✅ Material: high-carbon steel; seal material: synthetic rubber
✅ Dynamic load capacity: 18,300 N; Static load capacity: 23,700 N
✅ Maximum speed: ~7,000 rpm; oil hole for lubrication access
✅ Sealed bearing design ideal for linear slide unit applications
✅ Caged needle rollers provide compact, high-load radial support
✅ Single bearing pack; a practical alternative to ceramic bearings

💡 What is a needle roller bearing used for in linear slide units? Needle roller bearings deliver slim, high-capacity radial support so slide guides and compact actuators stay accurate and low-profile. Why engineers pick them: - Ideal for sealed bearing applications in tight spaces and confined designs - Provide high load capacity and low friction for precise motion control - Compatible with linear slide unit setups, gearboxes, and linkage systems - Often chosen over ceramic options when cost, toughness, and lubrication access matter