Machined Caged Needle Roller Bearing, Single Unit, 265 mm ID x 320 mm OD x 80 mm W, High Carbon Steel, With Oil Hole, RNA49 Metric Series for Heavy-Duty Linear Slide Units

Single machined caged needle roller bearing, RNA49
✔️ 265 mm ID x 320 mm OD x 80 mm W, high carbon steel, oil hole

This single machined caged needle roller bearing is built for heavy-duty linear slide units, gearboxes, and industrial machinery that need compact radial support and high load capacity. Sold as one bearing (single unit).

✅ Model: RNA4948, RNA49 Metric Series
✅ Type: Caged machined needle roller, open enclosure
✅ Inner diameter (ID): 265 mm
✅ Outer diameter (OD): 320 mm
✅ Width: 80 mm
✅ Material:
✅ Oil hole: With oil holes for relubrication
✅ Dynamic load capacity: 565000 N
✅ Static load capacity: 1320000 N
✅ Maximum speed: 1300 rpm, single row
✅ Typical use: linear slide unit, gearboxes, automation equipment

💡 What is a needle roller bearing used for in heavy-duty linear slide units?

Needle roller bearings are handy when you need high radial load capacity in a tight space. Below are key points to help you decide:

- Ideal for compact radial support in linear slide units and machine tools, compared to sealed ball bearing alternatives - Preferred where small cross-section bearings must carry large dynamic loads; oil holes help with maintenance and relubrication - Consider ceramic or sealed ball bearing options for low-friction or corrosion-resistant needs, but needle rollers excel in tight, heavy-load setups