The NTN UCFS311D1 is a high-quality, genuine NTN four-bolt flanged bearing unit designed for robust industrial applications. It features a durable cast iron housing (FS311) and a reliable bearing insert (UC311D1) with a 55mm bore diameter. This unit provides excellent support and alignment, ensuring smooth operation and extended service life in demanding environments. Its square flanged design allows for secure mounting, featuring an overall length of 175mm, a mounting bolt hole spacing of 140mm, and 19mm bolt hole diameters. The unit has an overall height of 70mm and weighs approximately 3.2 kg, with a dynamic load rating of 62.5 kN and a static load rating of 40.5 kN.