1. Product Overview The UCFX18 is heavy-duty four-bolt square flange bearing assembly, composed of UCX18 spherical outer insert ball bearing and FCX18 cast iron housing with double set screw locking. It mainly bears radial loads and tolerates minor axial loads. Spherical outer ring offers self-aligning capability to compensate shaft installation misalignment, widely adopted for face mounting of rotary equipment under dusty and humid operating environments. 👉 Get a quote