Machined Needle Roller Bearing NA4911 Single, 55 mm ID x 80 mm OD x 25 mm Width, High Carbon Steel Inner Ring, Oil Hole Caged Type for Linear Slide Units and Industrial Applications

Machined needle roller bearing NA4911, single unit
✔️ 55 mm ID x 80 mm OD x 25 mm width, oil hole, inner ring

This is a machined, caged needle roller bearing (sold as a single bearing) for compact machinery and linear slide units where high radial load capacity is needed. It fits tight shafts and gearboxes.

✅ Model: NA4911, caged machined type (NA49 Metric Series)
✅ Dimensions: 55 mm ID x 80 mm OD x 25 mm width
✅ Material: High carbon steel with inner ring and oil holes
✅ Dynamic load capacity: 57,600 N; Static load capacity: 97,200 N
✅ Max speed: 6,500 rpm; enclosure: Open, oil lubrication points present
✅ Common uses: linear slide unit guidance, compact shafts, gearboxes
✅ Pack: single bearing (each), sold individually; check SKU for fit

💡 What is a needle roller bearing used for in linear slide units and compact shafts? Needle roller bearings provide high radial load support in narrow spaces and are handy for machines with tight envelopes. - Ideal for linear slide unit guidance and cam followers where space is limited - Often selected over sealed ball bearing designs when higher load capacity per size is needed - Chosen instead of ceramic options when shock resistance and fatigue strength are priorities