CSCC040 Slim Thin Section Bearing 4" x 4-3/4" x 3/8"CSCC040 Thin Section Ball Bearing 4" x 4 3 4" x 3 8" Open, ABEC 1 Precision The CSCC040 is a thin section deep groove ball bearing designed for space saving setups where precision and lightweight components matter. With a 4" inner diameter and only 3 8" cross section, it's ideal for robotics, aerospace, automation, and compact mechanical assemblies. Deep groove radial design for smooth rotation Ultra slim 3 8" cross section for tight spaces ABEC 1