Precision inner ring for shell type bearings with 1/2 inch bore, 11/16 inch outside diameter, and 13.08 mm width in high carbon steel, engineered for dependable fit with BA118Z and BHA118Z assemblies

IRB88 inner ring for BA118Z/BHA118Z - 1/2 in ID
✔️ 1/2 in ID, 11/16 in OD, 13.08 mm width; shell type, single piece

The IRB88 inner ring is a precision inner race used in shell-type needle roller bearing assemblies. It mates with BA118Z and BHA118Z components to deliver compact, high-load performance in automation, conveyors, and equipment that needs precise shaft alignment.

✅ ID: 1/2 in (12.7 mm) inside diameter
✅ OD: 11/16 in (17.46 mm) outside diameter
✅ Width: 13.08 mm (0.515 in)
✅ Shell-type needle roller bearing compatible
✅ Material: high carbon steel
✅ Pairs with BA118Z and BHA118Z for easy assembly

💡 What is the function of an inner ring in a shell-type needle roller bearing system?

It provides a precise seating surface for the rollers and helps retain lubricant. - Provides precise seating for rollers under load - Keeps shaft alignment and reduces wear - Enables quick maintenance with BA118Z and BHA118Z setups