Inner ring IRT1513 metric 15 mm ID x 18 mm OD x 13.5 mm width for shell-type needle roller bearing, high carbon steel, single unit, fits TA1813Z, ideal for linear slide unit repairs

Inner ring IRT1513 - 15 x 18 x 13.5 mm single unit
✔️ Taper bore, high carbon steel; ID15 OD18 W13.5, fits TA1813Z

This inner ring is a metric tapered-bore component for shell-type needle roller bearings, commonly used in transmissions, gearboxes and linear slide unit repairs. Single piece per listing.

✅ Model IRT1513, Metric series; tapered inner bore
✅ Inside diameter 15 mm, outside diameter 18 mm, width 13.5 mm
✅ High carbon steel for load durability; handy for machine repairs
✅ Fits shell type assemblies; designed to assemble with TA1813Z
✅ Single inner ring sold for maintenance and repair

💡 What is an inner ring used for in needle roller bearing assemblies? An inner ring provides the smooth raceway for rollers and helps support radial loads in shaft-mounted needle roller systems. Quick overview: - Provides hardened raceway to guide rollers in needle and linear slide units - Ensures correct fit in shell-type housings and pairs with matching TA shells - High carbon steel inner rings improve wear resistance for gearbox and transmission repairs