Inner ring for shell-type tapered needle roller bearing, metric 15 mm ID x 18 mm OD x 16.5 mm width, high carbon steel, fits TLA1816Z; model IRT1516, single unit replacement for linear slide units

Inner ring for shell-type needle roller bearing
✔️ 15 mm ID x 18 mm OD x 16.5 mm W; single; HC steel; fits TLA1816Z

This is a metric tapered inner ring (model IRT1516) for shell-type needle roller bearings, sold as a single unit. Typically used in compact linear slide units, gearboxes, and transfer assemblies where a precise inner race is needed.

✅ Model: IRT1516 (Metric series)
✅ Inner diameter: 15 mm (bore tapered)
✅ Outer diameter: 18 mm
✅ Width: 16.5 mm
✅ Material: High carbon steel (HC steel)
✅ Designed for shell-type needle roller bearing; pairs with TLA1816Z
✅ Ideal for linear slide units, small gearboxes, and repair kits

💡 What is a shell-type needle roller bearing inner ring used for in linear slide units? A needle roller bearing inner ring provides the precision raceway needed for needle rollers to carry radial loads with minimal friction. It helps maintain alignment and smooth motion in tight assemblies. Short intro: Quick reasons to use a proper inner ring in your setup: - Provides a hardened, low-friction raceway for needle rollers, improving service life and reducing wear - Keeps radial clearance and alignment tight in linear slide units and compact gearboxes for accurate motion - Works with sealed ball bearing or ceramic components in hybrid systems to optimize performance and longevity