Needle Roller Bearing NA4906UU Machined caged type, 30 mm ID x 47 mm OD x 17 mm width, high carbon steel, sealed with oil hole and inner ring, suitable for linear slide unit replacements

Machined caged needle roller bearing NA4906UU
✔️ Single bearing, 30 mm ID x 47 mm OD x 17 mm W, sealed

This machined caged needle roller bearing (single pack) includes an inner ring and oil hole for reliable lubrication. It's commonly used in transmissions, gearboxes, linear slide units, and industrial machinery where space and radial load capacity matter.

✅ Model: NA4906UU, NA49 metric series
✅ Inside diameter: 30 mm, Outside diameter: 47 mm, Width: 17 mm
✅ Material: high carbon steel, machined cage with inner ring
✅ Seals: synthetic rubber, oil hole included for lubrication and serviceability
✅ Dynamic load capacity: 21500 N, Static capacity: 28400 N
✅ Maximum speed: 5500 rpm; caged machined needle rollers for durable operation

💡 What is a needle roller bearing used for in industrial linear slide units? Needle roller bearings are handy when you need compact radial load support in tight spaces. - They deliver high radial load capacity with a slim cross-section, perfect for linear slide unit and shaft guide applications. - For lower loads or higher speeds, a sealed ball bearing or ceramic option might be chosen instead.