209/211/491 Disk Harrow UnitsThis unit incorporates a triple lips sealed bearing mounted in two stampings. Available in two basic size groups, one incorporating a 209 and the other a 211 bearing. Both size groups offer these features:> Dynamic alignment capability (±3°)> Shroud effect from close clearance of stamping to inner ring.> Relubrication> One unit piece for ease of handling and assembly> Fitting flange mates with outer ring milled recess, preventing possibility of outerring circumferential movement.Phone: +86-592-580 8851 / +86-592-580 7618Email: sales@ldk-bearing.com ; benjamin@ldk-bearings.com