IKO IRB3016 Inner Ring for shell type bearings, 1 7/8 in ID, 2 1/8 in OD, 25.78 mm wide, high carbon steel, pairs with BA3416Z for precise, durable rotation and extended bearing life

Single IRB3016 inner ring for BA3416Z shell-type bearing
✔️ ID 1.875 in, OD 2.125 in, width 25.78 mm; fits BA3416Z

The IRB3016 inner ring is a precision race component used in shell-type needle roller bearings, typically paired with the BA3416Z housing. Made from high carbon steel for strength and wear resistance, it provides the seated surface for rollers and ensures proper alignment in compact assemblies.

✅ Outer diameter 2 1/8 in (53.98 mm), inner diameter 1 7/8 in (47.63 mm)
✅ Width 25.78 mm; material: high carbon steel
✅ For shell-type needle roller bearing BA3416Z compatibility
✅ Pack size: single unit
✅ Origin: Japan

💡 What is an inner ring in a shell-type bearing used for and how does it impact performance?

Understanding its role helps select compatible housings and maintain accuracy. - Keeps the inner race properly aligned for smooth rotation - Defines seating surface for rolling elements, cages, and preload - Supports consistent load distribution in compact shell-type assemblies