Single Metric Inner Ring for Shell Type Needle Roller Bearing, 32 mm ID x 37 mm OD x 20.5 mm Width, Tapered Bore, High Carbon Steel, Fits TA3720Z YT3720 IRT3220

Single Metric Inner Ring for Shell Needle Bearings
✔️ 32 mm ID x 37 mm OD x 20.5 mm wide, tapered bore, high carbon steel

This single inner ring is a replacement raceway for shell type needle roller bearing assemblies. Pack of 1, made for compact linear slide unit and rotary setups, and fits TA3720Z and YT3720 shells.

✅ Model: IRT3220, Metric series IRT
✅ Inside diameter: 32 mm; Outside diameter: 37 mm; Width: 20.5 mm
✅ Tapered bore inner race for shell-type needle roller bearings
✅ Material: High carbon steel for wear resistance and rigidity
✅ Fits shell types TA3720Z and YT3720; sold as single inner ring (each)
✅ Weight: 0.090 lb; SKU: 861284; ideal for compact linear slide unit applications

💡 What is an inner ring used for in shell-type needle roller bearing assemblies? A short answer: it provides a hardened raceway for needle rollers and lets you replace worn rings without changing the housing. - Supports high radial loads in tight, compact linear slide unit or rotary setups - Lets needle roller designs work alongside sealed ball bearing arrangements when a hardened raceway is needed - Consider ceramic rolling elements for low-friction or high-temperature demands