UCPU320-63 Pillow Block Bearing, Single, Heavy Duty Set-Screw Mount 3 15/16 in (100.01 mm) Bore, Sealed Ball Insert, Wide Inner Ring, Cast Iron P-U320 Housing, 1/8-27 NPT Grease Fitting

Pillow block bearing UCPU320-63, single unit
✔️ Bore 3 15/16 in (100.01 mm), cast iron housing, sealed contact

This single sealed pillow block bearing insert UCPU320-63 is a heavy duty set-screw mounted unit for industrial conveyor, agricultural and OEM machinery. It fits P-U320 cast iron housings and accepts relubrication through a 1/8-27 NPT grease fitting.

✅ Model: UCPU320-63 (single bearing)
✅ Bore: 3 15/16 in (100.01 mm)
✅ Housing: Cast iron P-U320, bolt size 1 in (25.4 mm)
✅ Insert: Wide inner ring, bearing steel ball bearing, set-screw locking
✅ Seal & relube: Contact seal with slinger, relubricatable via 1/8-27 NPT fitting
✅ Duty & temp: Heavy duty, rated to 212 F (approx 100 C)

💡 What is a sealed ball pillow block bearing used for in industrial conveyors and machinery? Sealed pillow block bearings support rotating shafts while keeping grease in and dirt out, making them handy for rugged environments. - They support and align shafts in conveyor drives, gearbox inputs, and mounted motor shafts while reducing friction using sealed ball-bearing inserts. - They protect bearings from contaminants and retain lubrication for longer service life; useful alongside linear slide units and mounted housings. - They are chosen for applications needing relubrication access or for upgrades to ceramic or corrosion-resistant bearings in harsh conditions.