RBY207 Spherical Insert Bearing 35x72x42.9mm Self Aligning Ball Bearing For Light Industry & Grain Conveying Equipment Product Overview RBY207 is a spherical insert ball bearing with double-side extended inner ring and two grub screw locking design, fully interchangeable with standard YAR207-2F bearing, overall dimension 35×72×42.9mm. Equipped with double lip rubber seal and relubrication grease nipple, it features excellent dustproof performance and automatic self-aligning