IRT5212 Single Inner Ring Metric Race 52 mm ID 62 mm OD 12.5 mm Width for Shell-Type Needle Roller Units High Carbon Steel Fits TA6212Z Compatible with sealed ball bearing setups

Single IRT5212 Metric inner ring 52x62x12.5 mm
✔️ Fits TA6212Z shell; 52 mm ID, 62 mm OD, 12.5 mm width, carbon steel

This single inner ring (IRT5212) is a metric inner race for shell-type needle roller units, commonly used in linear slide units, sealed ball bearing assemblies, and precision machinery where a hardened raceway is needed.

✅ Part: IRT5212 (IRT Metric Series)
✅ Bore type: Tapered bore for shell-type needle roller units
✅ Dimensions: 52 mm ID x 62 mm OD x 12.5 mm width
✅ Material: High carbon steel; no oil hole
✅ Fits with: TA6212Z and compatible shell-type assemblies

💡 What is an inner ring used for in needle roller bearing assemblies? An inner ring provides a precision, hardened raceway for rollers to reduce wear and keep alignment under radial load. Quick rundown: - Provides a hardened race surface for needle rollers, improving life in sealed ball bearing and linear slide unit setups. - Makes assembly with matching shafts and shells easier; handy for repairs and swaps. - Helps manage radial loads and keeps rollers guided inside shell-type units.