Machined needle roller bearing single unit with inner ring and oil holes, 320 mm ID x 400 mm OD x 80 mm width, high carbon steel, caged NA4864 metric series

Machined needle roller bearing, single unit, inner ring
✔️ 320 mm ID, 400 mm OD, 80 mm width, caged, oil holes, high carbon steel

This machined needle roller bearing is a single heavy-duty unit with an inner ring and oil holes, built for compact, high-load shaft and cam applications where space is tight.

✅ Model: NA4864 (NA48 Metric Series)
✅ Inner diameter: 320 mm
✅ Outer diameter: 400 mm
✅ Width: 80 mm
✅ Material: High carbon steel, caged machined type
✅ Oil holes: yes (with oiling provision)
✅ Dynamic load capacity: 635000 N
✅ Static load capacity: 2040000 N
✅ Max speed: 750 rpm, open enclosure
✅ Sold as: single bearing (1 each), weight ~1.000 lb, SKU 864056

💡 What is a metric needle roller bearing used for in heavy-load, compact shaft applications? This bearing is handy when you need high radial load capacity in a tight package. - Supports high radial loads in limited radial space, ideal for cam shafts and gearboxes - Works well where sealed ball bearing or ceramic options are impractical due to space - Often paired with linear slide unit or shaft assemblies needing thin cross-sections - Choose caged machined types for easier handling, oil holes for routine lubrication