Machined Caged Needle Roller Bearing RNA4912UU, 68 mm ID x 85 mm OD x 25 mm W, High Carbon Steel, Sealed with Oil Hole, Single Unit, RNA49 Metric Series, High Load Capacity

Caged needle roller bearing RNA4912UU, 68x85x25mm sealed
✔️ ID 68 mm, OD 85 mm, W 25 mm, carbon steel, sealed, oil hole, 1pc

This is a machined caged needle roller bearing (RNA4912UU) designed for tight-space applications like automotive transmissions, industrial gearboxes, and linear slide unit guides. Sold as one single bearing for direct replacement use.

✅ ID: 68 mm
✅ OD: 85 mm
✅ Width: 25 mm
✅ Material: High carbon steel
✅ Type: Caged machined needle roller, 1 row
✅ Series / Model: RNA49 Series, RNA4912UU
✅ Enclosure: With seals (synthetic rubber)
✅ Oil provision: With oil hole
✅ Dynamic load capacity: 54,500 N
✅ Static load capacity: 92,800 N
✅ Max speed: 3,000 rpm
✅ Weight: 0.630 lb

💡 What is a needle roller bearing used for in compact machinery? Needle roller bearings support high radial loads in constrained spaces and are handy where a standard sealed ball bearing may be too bulky. This short intro explains common fits and benefits: - High radial capacity for compact gearboxes, transmissions, and drive trains where space is limited - Common choice for linear slide unit guides, robotics, and automotive shaft supports - Sealed versions protect lubrication; consider sealed ball bearing or ceramic options for specialized corrosion or speed needs