UKF211+HA2311 1-15/16 in Wide Inner Ring Adapter with Concentric Locking, 4-Bolt Flange Cast Iron Housing, 5/8 in Bolt Size, Contact Seal, Relubricatable Pillow Block Bearing Assembly

1-15/16 in Wide 4-Bolt Flange Adapter with Inner Ring
✔️ Concentric adapter, ID 1-15/16 in (49.21 mm), 5/8 in bolts (15.88 mm)

This is a single 4-bolt flange housing and concentric adapter for UK211+HA2311 sealed ball bearing setups, used on shafts in conveyors, pumps, agricultural and light industrial equipment.

✅ Model UKF211+HA2311 with HA2311 ball bearing insert
✅ Inner diameter (I.D.): 1-15/16 in (49.21 mm), wide inner ring
✅ Housing: cast iron F211 style, 4-bolt flange, single unit
✅ Bolt size: 5/8 in (15.88 mm); concentric locking adapter
✅ Seal: contact seal with slinger; relubrication via 1/8-27 NPT tap
✅ Max temp ~212F (100C); insert material: bearing steel

💡 What is a 4-bolt flange bearing housing used for? This short answer explains typical uses and benefits. - Supports rotating shafts and secures sealed ball bearing inserts for industrial shafts and pillow block bearing swaps - Ideal for conveyor drives, pumps, agricultural machinery and reducers where compact flange mounting is handy - Works with relubricatable sealed ball bearing inserts and concentric adapters for easier maintenance and longer life