Inner Ring LRTZ758345, Metric 75 mm ID x 85 mm OD x 45.5 mm Width, High Carbon Steel Needle Roller Race, Machined LRTZ Series, No Oil Hole, Fits GTR8310845, Single Piece General Use

Single metric inner ring LRTZ758345, 75x85x45.5 mm
✔️ 75 mm ID, 85 mm OD, 45.5 mm width, machined needle bearing fit

This single inner ring is a machined metric race for needle roller bearing assemblies, commonly used in compact drives, linear slide units, and general machinery where precise shaft fit is required.

✅ Part number LRTZ758345, LRTZ metric series
✅ Fits assembly GTR8310845 for proper mating ring
✅ Bore type chamfered, no oil hole, machined finish
✅ Dimensions: 75 mm ID, 85 mm OD, 45.5 mm width
✅ Material: High carbon steel hardened raceway
✅ Single piece, machined for needle roller bearing fit

💡 What is an inner ring used for in needle roller bearing assemblies? An inner ring provides the hardened raceway that needle rollers run on and ensures accurate shaft fit while carrying radial loads, making it a handy part in tight bearing designs. Quick overview: - Provides a hard raceway for needle roller bearings to support radial loads and extend service life. - Ensures precise shaft fit for linear slide unit applications and compact transmissions. - Used when matching machined inner rings to sealed ball bearing or roller assemblies during maintenance or replacement.