IRT3230 Single Inner Ring for Shell-Type Needle Roller Bearing, Metric 32 mm ID x 37 mm OD x 30.5 mm Width, High Carbon Steel, Fits TA3730Z Assembly, Replacement race for tapered bore and linear slide units

Single IRT3230 inner ring - 32 x 37 x 30.5 mm
✔️ Metric inner ring IRT3230, 32 mm ID, 37 mm OD, 30.5 mm W

This single inner ring is a tapered-bore inner race for shell-type needle roller bearings, commonly used in linear slide units, gearboxes, and sealed ball bearing assemblies. Ideal for onsite maintenance and replacement parts.

✅ Part: IRT3230 - Metric IRT series
✅ Material: High carbon steel
✅ Bore type: Tapered bore, for assembly with TA3730Z
✅ Dimensions: 32 mm ID, 37 mm OD, 30.5 mm width
✅ Pack: Single inner ring for one replacement job
✅ Application: Shell-type needle roller bearings, linear slide units, sealed ball bearing setups

💡 What is an inner ring used for in needle roller bearing assemblies? An inner ring gives the rollers a hardened raceway, supports radial load, and helps maintain alignment. It is handy when doing maintenance or swapping parts. Quick note: this helps you pick the right sealed ball bearing or linear slide unit replacement. - Provides a precision raceway for needle rollers and reduces wear - Keeps axial and radial alignment in shell-type and tapered configurations - Common choice for maintenance, OEM replacement, and compatibility with metric IRT series