UCF306 30mm 4-bolt flange bearing unit, heavy-duty set screw locking insert, cast iron F306 housing, wide inner ring, contact seal with slinger, 1/8-27 NPT grease fitting, M14 bolts

Single UCF306 30mm 4-bolt flange bearing unit
✔️ Heavy-duty set screw lock, contact seal, 1/8-27 NPT grease fitting

This single UCF306 is a general-purpose 4-bolt flange bearing unit with a 30mm bore, cast iron F306 housing and wide inner ring. It's commonly used on conveyors, fans, and shaft support in light to heavy machinery.

✅ Model: UCF306 (UC306 compatible), 30mm I.D., wide inner ring
✅ Insert: ball bearing, bearing steel insert, set screw locking
✅ Housing: cast iron F306, 4-bolt flange, bolt size M14
✅ Seals & lube: contact seal with slinger, relubrication, 1/8-27 NPT grease fitting
✅ Service: heavy duty, covers none, max temp 212°F, HTS 8483.20.40.40
✅ Notes: sealed ball bearing standard; ceramic ball upgrades available on request

💡 What is a 4-bolt flange bearing unit used for in industrial shaft support applications? A quick answer: it holds and supports rotating shafts, keeping alignment while allowing relubrication and protection from contaminants. - Supports shafts in conveyors, gearboxes, fans and linear slide unit setups for reliable rotation - Uses sealed ball bearing designs and slinger seals to prevent dirt entry and extend service life - Allows easy replacement with set screw locking or adapter styles and routine relubrication maintenance