Inner Ring IRT2830 Metric 28 mm ID x 32 mm OD x 30.5 mm Width, Shell-Type Needle Roller Bearing Race, High Carbon Steel, Fits TA3230Z, Single Unit

Metric inner ring IRT2830, 28 x 32 x 30.5 mm single unit
✔️ 28 mm ID, 32 mm OD, 30.5 mm width; shell-type inner race, single piece

This single metric inner ring fits shell-type needle roller bearings and is typically used in linear slide units, gearboxes, and compact transmissions where a hardened inner race is needed.

✅ Series: IRT Metric series, model IRT2830
✅ Bore (ID): 28 mm
✅ Outside diameter (OD): 32 mm
✅ Width: 30.5 mm
✅ Material: high carbon steel, hardened inner race
✅ Fits with: TA3230Z cup for shell-type needle roller bearings
✅ Pack: single unit, ready to assemble

💡 What is an inner ring used for in needle roller bearing assemblies? An inner ring provides a hardened raceway and supports roller elements for reliable operation. - Supports rollers and ensures accurate load distribution for reduced wear and longer life - Keeps alignment in compact gearboxes and linear slide units where thin cross-sections are needed - Often chosen over sealed ball bearing parts when space is tight or when a shell-type cup assembly is required