Single Inch-Series IRB68-1 inner ring, tapered I.D. needle roller bearing race for BA108Z/BHA108Z YB108 shell housings, 3/8 in (9.525 mm) bore, 5/8 in (15.88 mm) O.D., 13.08 mm width

Single IRB68-1 inch-series inner ring for needle bearings
✔️ 3/8 in (9.525 mm) bore, 5/8 in (15.88 mm) OD, 13.08 mm (0.515 in) wide

This single IRB68-1 inner ring is a tapered I.D. high carbon steel race for needle roller bearings. It fits BA108Z, BHA108Z and YB108 shell-type housings and is commonly used for shaft support, power transmission and compact linear slide unit setups where a compact bearing solution is handy.

✅ Model IRB68-1 inner ring, Inch Series, tapered I.D.
✅ Bore: 3/8 in (9.525 mm)
✅ Outside diameter: 5/8 in (15.88 mm)
✅ Overall width: 13.08 mm (0.515 in)
✅ Material: high carbon steel inner race
✅ Fits BA108Z, BHA108Z and YB108 shell-type housings
✅ Suited for needle roller bearing assemblies and linear slide units
✅ Pack: single unit, sold each; weight ~0.03 lb

💡 What is a needle roller bearing inner ring used for in shaft support and linear slide unit applications? A needle roller bearing inner ring provides a hardened raceway that supports rollers and protects the shaft. - Improves shaft support and load distribution in needle roller bearing assemblies, preventing wear on the shaft - Works well inside shell-type housings and compact linear slide units as a space-saving raceway option - A handy choice when sealed ball bearing or ceramic options are not appropriate for tight or high-load setups