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Disc Harrow Bearing Assembly, 1-3/4" Round Bore, ST491A

This disc harrow bearing assembly. ST491A / FD209RA, is a standard bearing kit made to fit IHC Disc Harrows. The disc bearing has a round 1-3/4 inch center bore, sealed inside of two flanges that have 8 machine riveted welds.
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Product Overview

The disc harrow bearing assembly comes complete with a grease zerk to keep your bearing rotating smoothly. The assembly is 5 inches square with 4 bolts and a 5 inch bolt circle. The disc bearing has a 1-3/4 inch bore. The ST491A / FD209RA is made to fit Case IH/IHC Disc Harrows.


  • ST491A / FD209RA
  • 1-3/4" round bore
  • Bolt size: 1/2"
  • Flange plates connected with 8 rivets
  • Assembly: 5" square
  • 4 bolt holes on a 5" bolt pattern
  • Uses bushings, ASC #11683 or ASC #11684
  • Made to fit IHC
  • Made in China
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