IKO RNA4905UU Machined Needle Roller Bearing 25x42x17mm Double Sealed Needle Bearing for High Load Applications

IKO RNA4905UU Machined Needle Roller Bearing 25mm x 42mm x 17mm Pack of 1
✔️ Double Sealed Heavy Duty Needle Bearing

This pack of 1 IKO RNA4905UU machined needle roller bearing is designed for compact assemblies that require strong radial load capacity. With a rigid machined outer ring and dual seals, it helps keep grease inside while protecting the rollers from dust and contamination in industrial machinery and gear systems.

✅ Pack size: 1 bearing
✅ Model: RNA4905UU machined needle roller bearing
✅ Inner diameter: 25mm
✅ Outer diameter: 42mm
✅ Width: 17mm
✅ Brand: IKO
✅ Closures: double rubber seals
✅ High radial load capacity design
✅ Suitable for gearboxes, transmissions, and industrial equipment

Dimensions (mm)

d      D      B
25     42     17

💡 Why are machined needle roller bearings used instead of drawn cup bearings in high load industrial applications?
They offer stronger structure and better load handling:

• Machined outer ring increases rigidity under load

• Needle rollers distribute force across a larger surface

• Seals retain grease and block contaminants

• Suitable for higher load and shock conditions

If you need a durable needle bearing that handles serious radial loads, this IKO RNA4905UU is a reliable choice for demanding machinery.