Four-Bolt Flanged Unit (UCF208-24) - Sparex Part S.18546Sparex Four Bolt Flanged Unit (UCF208 24) Sparex Part No. S. 18546 This Sparex Four Bolt Flanged Unit is a high quality replacement part designed for durability and reliability. It features a UCF208 24 bearing and is compatible with a wide range of applications. Product Specifications: ID: 1 1 2'' A2 (mm): 49. 2 Alternative to: 129738 Bearing Reference: UCF208 24 Bearing type: UCF Brand: Sparex d (ins): 1 1 2 Inner (ins): 1 1 2 J (mm): 102 L (mm): 130