Inner ring IRT1519 metric 15 mm ID x 18 mm OD x 19.5 mm width for shell type needle roller, high carbon steel, fits TA1819Z, single-unit replacement

IRT1519 inner ring 15 x 18 x 19.5 mm metric needle roller
✔️ 15 mm ID, 18 mm OD, 19.5 mm W; shell type; high carbon steel; single

Single inner ring IRT1519 intended for shell-type needle roller applications. Pairs with TA1819Z and is used in linear slide units, gearboxes, and industrial automation where a compact, hard-wearing race is handy.

✅ Part: IRT1519 metric series inner ring, single unit
✅ Dimensions: 15 mm ID x 18 mm OD x 19.5 mm width
✅ Material: high carbon steel for durability and load support
✅ Compatibility: designed to assemble with TA1819Z shell-type needle roller
✅ Applications: ideal for linear slide unit setups, sealed ball bearing upgrades and tight-fit assemblies

💡 What is an inner ring used for in needle roller bearing assemblies? An inner ring supplies the precise raceway and alignment so rollers run smoothly and loads are shared correctly. - Provides a hardened running surface for needle rollers to reduce wear and improve life - Keeps roller alignment stable in compact gearboxes and linear slide units, making maintenance easier - Lets you replace a worn race without swapping the housing, handy for quick service and sealed bearing upgrades