Machined Caged Needle Roller RNA4902 Bearing, 20 mm ID x 28 mm OD x 13 mm Width, High Carbon Steel, Open Type with Oil Hole, Single Metric RNA49 Series

Single machined caged needle roller RNA4902 model
✔️ 20 mm ID x 28 mm OD x 13 mm width; high carbon steel; oil hole

This single machined caged needle roller bearing (RNA4902) is an open-design bearing for high radial loads in tight spaces, commonly used in automotive gearboxes, industrial actuators, and linear slide units.

✅ Model: RNA4902, RNA49 Metric Series
✅ Type: Machined caged needle roller, open design
✅ Dimensions: 20 mm ID, 28 mm OD, 13 mm width
✅ Material: High carbon steel; includes oil hole for relubrication
✅ Load ratings: Dynamic 10,900 N, Static 13,800 N
✅ Max speed: up to 20,000 rpm; single bearing pack

💡 What is a needle roller bearing used for in linear slide units and compact machinery? This explains why needle roller bearings are handy for tight, load-critical applications. - They provide high radial load capacity in a low-profile package, ideal for linear slide unit guides and compact gearboxes. - They can replace sealed ball bearing options when space is limited or higher load per diameter is needed. - Look for oil hole features for re-lubrication in heavy-duty or high-speed setups; consider ceramic options for specialized low-friction needs.