Needle roller inner ring IRB810-1 tapered bore 1/2 in (12.7 mm) O.D. 3/4 in (19.05 mm) 16.25 mm (0.64 in) width single inner race for BA1210Z YB1210 shell type, high carbon steel

Single needle roller inner ring IRB810-1 tapered 1/2 in
✔️ I.D. 1/2 in (12.7 mm) O.D. 3/4 in (19.05 mm) 16.25 mm

This single inner ring (IRB810-1) is an inch-series needle roller inner race for BA1210Z and YB1210 shell type bearings, used in compact linear slide units, sealed ball bearing assemblies, and light machinery applications.

✅ Part number IRB810-1 inner ring
✅ Bore: tapered I.D. 1/2 in (12.7 mm)
✅ O.D.: 3/4 in (19.05 mm)
✅ Width: 16.25 mm (0.64 in)
✅ Material: high carbon steel
✅ Series: IRB Inch Series, fits BA1210Z and YB1210 shell type
✅ Pack: single inner race (1 per pack)

💡 What is an inner ring for a needle roller bearing used for in linear slide units and sealed assemblies? An inner ring gives needle rollers a hardened raceway and helps keep things aligned under radial load. - Provides a precise raceway for needle rollers to support radial loads in linear slide unit assemblies - Helps locate rollers and integrate with sealed ball bearing or compact bearing systems for less wear - Ensure correct bore, O.D., and series match (BA1210Z YB1210) for reliable installation