IRT metric needle roller inner ring, tapered I.D. 17 mm, O.D. 22 mm, W 15.5 mm, pack of 2, compatible with TA2215Z shell bearing, high-carbon steel, for linear slide units

IRT metric needle roller inner ring, pack of 2
✔️ Tapered I.D. 17 mm, O.D. 22 mm, W 15.5 mm, high-carbon steel

This pack of 2 IRT series inner rings is the tapered-bore inner race used in shell-type needle roller bearings and linear slide units, common in transmissions, gearboxes, and industrial machinery.

✅ Bore type: tapered I.D. 17 mm
✅ Outer diameter: 22 mm, overall width 15.5 mm
✅ Material: high-carbon steel for strength in bearing applications
✅ Compatible with TA2215Z shell type needle roller bearing
✅ Use case: inner race for linear slide units, sealed ball bearing systems, and setups with ceramic rollers

💡 What is an inner ring for needle roller bearings used for in linear slide units and related machinery? An inner ring provides the raceway for needle rollers, ensuring precise rolling contact, load distribution, and correct axial positioning. Quick explanation for maintenance and selection: - Provides the raceway surface for needle rollers to reduce friction and wear in linear slide units and gearboxes. - Keeps rollers aligned and handles radial loads in sealed ball bearing assemblies and shell-type bearings. - When replacing parts, match tapered I.D., O.D., and width, and consider ceramic roller compatibility for high-speed or low-friction needs.