UCF309-28 Single 1-3/4 in (44.45 mm) Set Screw 4-Bolt Flange Bearing Unit, Heavy Duty Cast Iron Housing, Sealed Ball Insert, 5/8 in (15.88 mm) Bolt, Relube Port

Single UCF309-28 1-3/4 in Flange Bearing Unit
✔️ 1-3/4 in (44.45 mm) I.D., 5/8 in (15.88 mm) bolts, sealed

This single 4-bolt flange bearing unit contains a sealed ball insert in a cast iron F309 housing for heavy-duty shafts; ideal for conveyors, motors, material handling, and other fixed-mount industrial applications. Pack of 1 for one shaft mount.

✅ Model UCF309-28, heavy-duty UC style insert
✅ Inner diameter 1-3/4 in (44.45 mm), wide inner ring
✅ Housing F309, cast iron, 4-bolt flange pattern
✅ Bolt size 5/8 in (15.88 mm), mounting holes for secure fit
✅ Locking set screw, sealed contact seal with slinger
✅ Lubrication fitting 1/8-27 NPT, relubricatable, temp rating to 212F
✅ Insert material bearing steel, ball bearing type (sealed)

💡 What is a 4-bolt flange bearing unit used for in industrial shaft support? A 4-bolt flange bearing unit supports rotating shafts by providing a rigid, mounted sealed ball bearing that handles radial loads and keeps machinery aligned; it's a handy solution for fixed-mount setups. Short intro: Typical ways this helps: - Provides rigid shaft mounting and easy alignment for conveyors, gearboxes, and motor mounts, acting as a sealed ball bearing support - Works with linear slide unit arrangements and agricultural or material handling equipment where a cast iron flange offers durability - Keeps contaminants out with a contact seal and slinger while allowing relubrication via the 1/8-27 NPT grease port