Single inner ring IRT3020 for shell-type needle roller bearings, metric 30 mm ID x 35 mm OD x 20.5 mm width, high carbon steel raceway, fits TA3520Z and TLA3520Z, ideal for linear slide units

Single IRT3020 inner ring, 30 mm ID x 35 mm OD
✔️ High carbon steel inner ring, 20.5 mm wide, fits TA3520Z TLA3520Z

This single inner ring (IRT3020) is a precision raceway for shell-type needle roller bearings, typically used in tight radial spaces like linear slide units, gearboxes, and compact rotary assemblies.

✅ Model: IRT3020, metric inner ring for shell-type needle roller bearings
✅ Bore (ID): 30 mm; Outside diameter (OD): 35 mm; Width: 20.5 mm
✅ Material: high carbon steel raceway for improved wear resistance and life
✅ Fits assemblies: TA3520Z and TLA3520Z; sold as a single piece for replacements
✅ Ideal for compact linear slide unit installs, sealed ball bearing housing alignment, and ceramic conversion projects

💡 What is a needle roller bearing inner ring used for? It supplies the hardened raceway that guides needle rollers in shell-type bearings, keeping low-profile radial clearance and stable rotation under load. Quick overview: - Supports needle rollers in compact linear slide unit and rotary systems, maintaining alignment under radial load. - Used for replacement raceways, fit tuning in sealed ball bearing setups, or upgrading to ceramic rollers for reduced friction. - Handy when space is tight and a low-profile, high-capacity raceway is required.