Machined Caged Needle Roller Bearing RNA4913UU, Single 72 mm ID x 90 mm OD x 25 mm Width, High-Carbon Steel, Oil Hole and Seals, Sealed Roller Bearing for Linear Slide Units, Metric RNA49

Single machined caged needle roller bearing, sealed
✔️ 72 mm ID x 90 mm OD x 25 mm W; high-carbon steel; oil hole; sealed

This is a single machined caged needle roller bearing (RNA4913UU) with seals and an oil hole, built for compact shafts and linear slide units where sealed bearing performance is needed. Typical use includes industrial gearboxes, linear slide assemblies, and compact drivetrain components.

✅ Model: RNA4913UU, RNA49 metric series
✅ Inside diameter: 72 mm
✅ Outside diameter: 90 mm
✅ Width : 25 mm
✅ Material: high-carbon steel, caged machined type
✅ Oil hole: yes; Seals: synthetic rubber
✅ Dynamic load capacity: 56800 N; Static load capacity: 99800 N
✅ Max speed: 2500 rpm; Single-row; Weight: 0.720 lb; Pack: single bearing

💡 What is a needle roller bearing used for in linear slide units and compact shaft assemblies? Needle roller bearings are a handy solution when you need high radial load support in tight spaces. Here are the main practical benefits to consider: - High radial load capacity in narrow housings, great for linear slide unit guides and compact shafts - Sealed designs keep lubricants in and contamination out, similar to sealed ball bearing options for harsher environments - Common in automotive steering racks, transmissions, and industrial gearboxes where slim, high-capacity bearings matter