IRB4020 Inner Ring For Shell Type Bearings Tapered Bore Two And One Half Inch ID Two And Three Quarters Inch OD 32.13 Millimeter Width High Carbon Steel For BA4420Z Assembly For Precise Fit And Reliable Performance

Inner Ring for Shell Type Needle Bearing, 1 pc, 2.5/2.75 ID-OD
✔️ ID 2.5 in (63.5 mm); OD 2.75 in (69.85 mm); width 32.13 mm

This inner ring is designed to fit shell type needle roller bearings and is intended for use with BA4420Z assemblies. Made from high carbon steel, it delivers durable, precise inner race support for demanding, high-load applications in industrial machinery.

✅ Inside diameter: 2.5 in (63.5 mm)
✅ Outside diameter: 2.75 in (69.85 mm)
✅ Width: 32.13 mm
✅ Material: High carbon steel
✅ For shell type BA4420Z assemblies

💡 What is an inner ring for a shell type needle bearing used for in precision machinery?

An inner ring provides the precise race surface that the needle rollers ride on and must seat correctly inside the housing. This helps ensure smooth rotation and proper load distribution. - supports correct alignment between inner race and outer components - enables consistent radial and axial load transfer in tight spaces - reduces wear by maintaining a stable rolling surface over time