LRT758345 inner ring, metric 75 mm ID, 83 mm OD, 45.5 mm width, high carbon steel machined race for needle roller bearing assemblies, general use, tapered bore, fits TR8310845, linear slide unit compatible

Single metric inner ring LRT758345 75mm ID 83mm OD
✔️ High carbon steel tapered bore, 45.5 mm width, fits TR8310845

This is a single metric inner ring (LRT758345) for needle roller bearing assemblies and linear slide units, ideal for general machinery use where a machined tapered-bore race is required.

✅ Part number: LRT758345, LRT Metric Series
✅ Inside diameter: 75 mm (metric)
✅ Outside diameter: 83 mm (metric)
✅ Width: 45.5 mm, machined inner race
✅ Material: High carbon steel, machined finish
✅ Fits and pairs with TR8310845 needle roller cage

💡 What is an inner ring used for in needle roller bearing assemblies and linear slide units?

An inner ring provides the hardened raceway for rolling elements and simplifies installation in assemblies. Quick intro: inner rings help bearings run smoothly and align with shafts.

- Provides a stable raceway for needle rollers and helps control radial clearance and load distribution
- Makes replacement and assembly easier in linear slide units, pillow blocks, and housings
- Common in applications needing compact, high-load capacity parts like sealed ball bearing alternatives and linear guides