UCPU312-39 Pillow Block Bearing 2-7/16 in I.D. Heavy Duty Set Screw Insert, Wide Inner Ring, Cast Iron Housing, Ball Bearing with Contact Seal and 1/8-27 NPT Lubrication Fitting

2-7/16 in Pillow Block Bearing, Cast Iron Housing
✔️ UCPU312-39, 2-7/16 in I.D., heavy duty, set screw, 1/8-27 NPT

Sold as a single heavy-duty pillow block bearing with a wide inner ring and a ball bearing insert. Commonly used to support rotating shafts in industrial equipment, conveyors, fans, and agricultural machinery.

✅ Model: UCPU312-39, single unit per listing
✅ Insert: Ball bearing, bearing steel, contact seal with slinger
✅ I.D.: 2-7/16 in; inner ring width: wide
✅ Housing: Cast iron, P-U312 style pillow block
✅ Locking: Set screw; bolt size: 3/4 in; duty: heavy
✅ Lubrication: 1/8-27 NPT fitting, relubrication allowed; max temp 212°F

💡 What is a pillow block bearing used for in heavy-duty shaft support applications? Pillow block bearings provide mounted support and keep rotating parts aligned for smooth operation. - Provide shaft support for conveyors, fans, pumps, and agricultural equipment; sealed ball bearing inserts reduce contamination. - Allow quick insert replacement, work with set-screw locking, and accept relubrication fittings like 1/8-27 NPT for maintenance. - Consider ceramic ball options or a linear slide unit when you need lower friction, higher speeds, or improved corrosion resistance.