3-3/16 in Heavy Set Screw Pillow Block UCPU316-51, Ball Insert, Sealed Bearing, Cast Iron P-U316 Housing, Wide Inner Ring, 1/8-27 NPT Grease Fitting, Heavy Duty Mounted Unit for Industrial Use

Single heavy set screw pillow block, 3-3/16 in bore
✔️ UCPU316-51, cast iron housing, wide inner ring, set screw, 1/8-27 NPT

This is a single heavy-duty pillow block bearing with a sealed ball insert for mounted applications like conveyors, shafts, and industrial machinery where a durable mounted unit is needed.

✅ Model: UCPU316-51 (UC316-51 compatible)
✅ Inner diameter: 3 3/16 in bore (3-3/16 in)
✅ Housing style: P-U316, material: cast iron
✅ Insert type: sealed ball bearing, insert material: bearing steel
✅ Locking: set screw; inner ring width: wide; bolt size: 1
✅ Lubrication: 1/8-27 NPT grease fitting, relubrication allowed
✅ Seal: contact seal with slinger; duty rating: heavy; covers: no
✅ Operating temp up to 212°F; HTS code: 8483.20.40.40

💡 What is a pillow block bearing used for?

A pillow block bearing supports a rotating shaft in mounted setups and keeps operations running smoothly.

- Ideal for industrial conveyors, drive shafts, and farming equipment using a sealed ball bearing insert for protection and long life - Common in linear slide unit setups and shaft-mounted assemblies where a heavy duty mounted unit with grease fitting is handy - Works well in applications needing a wide inner ring and set screw locking for secure shaft positioning