3 1/4 in (82.55 mm) Wide Inner-Ring UCX17-52 Set-Screw Insert, Medium-Duty Sealed Ball Insert with Contact Seal & Slinger for Pillow Block and Linear Slide Applications, Single Unit

Single 3-1/4 in Wide Inner-Ring Set-Screw Bearing
✔️ UCX17-52 med duty sealed contact seal, set-screw, 3-1/4 in (82.55 mm)

This is a single medium-duty sealed ball insert with a wide inner ring for pillow block housings, conveyor rollers, and linear slide unit installations where a relubricatable, set-screw locked insert is needed.

✅ Model: UCX17-52 insert, single unit
✅ I.D.: 3-1/4 in (82.55 mm)
✅ Inner ring width: Wide (wide-width inner ring for higher stiffness)
✅ Insert type: Ball bearing, bearing steel construction
✅ Locking: Set-screw style, O.D. spherical fit
✅ Seal: Contact seal with slinger, relubricatable (yes)
✅ Duty: Medium; Dynamic load rating: 21,500 lbf; Static rating: 16,100 lbf
✅ Temp limit: up to 212 F (100 C); HTS code: 8483.20.40.40

💡 What is a pillow block bearing used for in industrial machinery? A pillow block bearing supports rotating shafts and keeps driven components aligned for smooth operation. - Commonly used to mount shafts in conveyor systems, fans, and gear drives where sealed ball bearings help keep contaminants out - Ideal for linear slide unit and roller applications that need a handy, relubricatable, set-screw insert with a contact seal - Using a sealed ball bearing insert with a wide inner ring improves alignment, load capacity, and service life in heavy-shock or misaligned setups