Inner ring for tapered needle roller shell bearing, metric 30 mm ID x 35 mm OD x 12.5 mm width, high carbon steel inner race for assembly with TA3512Z and TLA3512Z, single piece replacement for linear slide units

Single inner ring 30 mm ID x 35 mm OD, 12.5 mm
✔️ Tapered inner ring, high carbon steel; fits TA3512Z, TLA3512Z; single piece

This inner race is a metric tapered inner ring for shell type needle roller bearings, typically used in linear slide unit housings, gearboxes, and compact transmission assemblies where tight radial support is needed.

✅ Inner diameter: 30 mm
✅ Outer diameter: 35 mm
✅ Width: 12.5 mm
✅ Material: High carbon steel inner race
✅ Model: IRT3012, compatible with TA3512Z and TLA3512Z assemblies
✅ Pack: single bearing inner ring, sold individually

💡 What is a needle roller bearing inner ring used for in linear slide units? It provides the smooth race surface for needle rollers and supports compact radial loads in tight spaces. - Helps deliver low-profile radial support for shafts and slides in linear slide unit housings - Works as the inner race for needle roller bearings where a sealed ball bearing or ceramic option might not fit - Keeps roller alignment and reduces wear in transmissions, gearboxes, and industrial actuators