Single Inner Ring LRTZ121623 12x16x23 mm Metric Race for Needle Roller Bearing Fits RNA6901UU, High Carbon Steel Replacement for Linear Slide Unit, sealed ball bearing, ceramic upgrades

Single 12x16x23 mm inner ring for needle bearings
✔️ High carbon steel, bore 12 mm, OD 16 mm, width 23 mm, single piece

This single inner ring (pack of 1) is a metric inner race for needle roller bearings, designed to assemble with RNA6901UU and used in linear slide units, small gearboxes, and compact automation systems.

✅ Model: LRTZ121623, metric inner ring, bore 12 mm, OD 16 mm, width 23 mm
✅ Material: high carbon steel, machined race surface for needle rollers
✅ Compatibility: designed to assemble with RNA6901UU needle roller cages
✅ Typical use: linear slide unit components, small drives, and seal/ball bearing conversions
✅ Pack: single inner ring (1 piece), lightweight replacement part

💡 What is an inner ring for needle roller bearings used for? An inner ring gives needle rollers a hardened raceway and is handy for tight radial guidance in compact assemblies. Quick overview to help pick the right race: - Fits inside assemblies like linear slide units, small gearboxes, and precision guides. - Enables upgrades or swaps with sealed ball bearing setups or ceramic bearing conversions when dimensions match. - Use with matching cages (e.g., RNA6901UU) for reliable low-profile rotational support.