FYH Bearing UCPX17-55 3 7/16 Pillow Block Mounted BearingUCPX17 55 FYH Pillow Block Bearing 3 7 16" ID Heavy Duty Cast Housing, Set Screw Lock The UCPX17 55 is a heavy duty mounted pillow block bearing with a 3 7 16" inner diameter and set screw locking. Designed for large shafts and high load applications, this bearing features a robust cast housing that can take on shock, vibration, and extreme force from any direction ideal for industrial conveyors, crushers, and agricultural machinery. Pack size: One