Single Inner Ring LRTZ222831 Metric Bearing Race 22 mm ID x 28 mm OD x 31 mm W, High-Carbon Steel, General Use, Fits RNA69/22UU Needle Roller Assembly, Replacement for Linear Slides and Sealed Ball Setups

Single metric inner ring 22 x 28 x 31 mm for needle rollers
✔️ LRTZ222831, High-Carbon Steel, Fits RNA69/22UU, 22/28/31 mm

This single inner ring is a precision metric bearing race used in needle roller assemblies and linear slide units for light to medium industrial machines and sealed ball bearing applications.

✅ 22 mm inside diameter (ID)
✅ 28 mm outside diameter (OD)
✅ 31 mm width, machined type
✅ High-carbon steel for general usage
✅ Fits RNA69/22UU needle roller bearing

💡 What is an inner ring used for in a needle roller bearing assembly? An inner ring provides the mating surface for rollers and keeps alignment under load. - Helps support radial loads and guides needle rollers for smooth rotation - Works with outer rings and cages in linear slide units and sealed ball bearing setups - Common choice for shafts, gearboxes, and machinery where compact handy parts are needed