UKF312+H2312 4-Bolt Flange Adapter Bearing, 55 mm ID Wide Inner Ring, Single Unit, Heavy Duty Cast Iron F312 Housing, Concentric Adapter Sleeve with Contact Seal and Slinger, Relubrication Port 1/8-27 NPT, M20 Bolt Size

55 mm flange adapter bearing, single heavy duty unit
✔️ 55 mm ID, M20 bolts, F312 cast iron housing, contact seal, relube port

This single 4-bolt flange adapter bearing combines a sealed ball bearing insert with a rugged F312 cast iron housing for heavy duty industrial shafts and equipment. Typical uses include conveyors, fans, pumps and agricultural machinery where reliable sealing and relubrication are required.

✅ Model: UKF312+H2312, 4-bolt flange, single unit
✅ Inner diameter: 55 mm, wide inner ring
✅ Housing: F312 cast iron, heavy duty housing style
✅ Insert: ball bearing, bearing steel sealed ball bearing insert
✅ Locking: concentric adapter sleeve, M20 bolt size
✅ Lubrication: 1/8-27 NPT relubrication port, relubrication yes
✅ Seal: contact seal with slinger, sealed bearing design
✅ HTS code: 8483.20.40.40, weight approx 15.920 lb

💡 What is a 4-bolt flange adapter bearing used for in heavy duty machinery? A 4-bolt flange adapter bearing supports short shaft spans and lets you mount a sealed ball bearing insert in a robust housing for industrial drives and shafts. - Provides stable shaft support in conveyors, gearboxes and fans while acting as a sealed bearing housing for dirty environments - Works with concentric adapter sleeves and sealed ball bearing inserts for straightforward mounting and field relubrication - Ideal when you need a compact flange unit that handles radial loads, protects the insert with a contact seal, and accepts a relube port