1312 Self Aligning Ball Bearing 60x130x31mm1312 Self Aligning Ball Bearing 60mm x 130mm x 31mm Chrome Steel The 1312 bearing features a spherical outer ring raceway that lets the inner ring and balls shift slightly to accommodate misalignment perfect for shafts that bend or mounts that arent perfectly aligned. Its built for dynamic conditions and helps reduce stress on surrounding parts. Self aligning design for misalignment correction Size: 60mm ID x 130mm OD x 31mm Width Material: High grade