Single 4-Bolt Flange Sealed Ball Bearing UCFEU315-48 3 in I.D., Wide Inner Ring, Cast Iron Housing, 7/8 in Bolt Size, Heavy Duty Set-Screw Locking, Contact Seal, Relubrication Port

Single sealed 4-bolt flange ball bearing, 3 in I.D.
✔️ Heavy duty set-screw lock, contact seal, 1/8 NPT grease fitting

This is a single 4-bolt flange sealed ball bearing unit used to support shafts in industrial equipment, conveyors, and agricultural machinery. Ideal where a relubricatable, heavy duty mounted ball bearing is needed.

✅ Model UCFEU315-48; 4-bolt flange unit
✅ I.D. 3 in; wide inner ring; insert: bearing steel
✅ Housing: cast iron FE-U315 style; heavy duty rating
✅ Bolt size 7/8 in; mounting: 4-bolt flange
✅ Locking: set screw; covers: No; expansion: No
✅ Seal: contact seal with slinger (sealed ball bearing)
✅ Lubrication: 1/8-27 NPT grease fitting; relubricatable
✅ Max temp 212 F; insert type: ball bearing; HTS 8483.20.40.40; weight 31.800 lb

💡 What is a 4-bolt flange bearing used for in industrial machinery and conveyors? A handy option when you need a mounted, sealed ball bearing for shaft support and easy maintenance. - Provides rigid shaft mounting for conveyors, gearboxes, pumps, and linear slide units. - Keeps contamination out with contact seals; good alternative to pillow block bearings when space is tight. - Supports relubrication via NPT fitting and accepts bearing steel or upgraded ceramic inserts for higher wear resistance.