Machined needle roller NA4914UU, 70 mm ID x 100 mm OD x 30 mm width, caged precision type, high-carbon steel sealed unit with inner ring and oil hole, NA49 metric series, single unit

Single machined needle roller bearing NA4914UU
✔️ 70 mm ID x 100 mm OD x 30 mm W, carbon steel, sealed, oil hole

This is a single machined needle roller bearing (model NA4914UU) designed for tight radial spaces and heavy radial loads, commonly used in gearboxes, transmissions, linear slide units, and machine tools.

✅ Model: NA4914UU (NA49 Metric Series)
✅ Internal diameter: 70 mm
✅ Outer diameter: 100 mm
✅ Width: 30 mm
✅ Material: High carbon steel, caged precision type
✅ Seals: Synthetic rubber; includes inner ring and oil hole
✅ Dynamic load capacity: 76900 N; Static capacity: 143000 N
✅ Max speed: 2500 rpm; single bearing pack

💡 What is a sealed needle roller bearing used for in linear slide units and industrial gearboxes? They are handy when you need high load support in limited radial space while keeping lubrication in and contaminants out. - Ideal for compact linear slide unit designs, robotics, and confined shaft supports - Sealed bearing design with oil hole and rubber seals retains lubrication and blocks debris - Common choice for gearboxes, transmissions, machine tools, and high-load precision assemblies