Disc Ag Bearing w/Flange, 1-3/4" 4-Bolt

AgSmart Round Bore Disc Ag Bearing w/Flange, 1-3/4" 4-Bolt

The 851-SMA491A AgSmart Round Bore Disc Ag Bearing w/Flange is a greasable, riveted-flange disc bearing with a 1-3/4" round bore and a 4-bolt flange pattern, designed for Case IH and related applications across discs, tillage, and soil-working equipment. Built to handle the dirt, shock, and side-loads that come with real field work—because bearings should be the quiet part of your day.

Country of Origin
Varies by production batch

Key Features / Specifications

• Model / Part Number: 851-SMA491A
• Product Type: Disc bearing with flange
• Bearing Type: Disc bearing
• Disc Bearing Type: Riveted flange
• Bore Shape: Round
• Bearing I.D.: 1-3/4"
• Mounting: 4-bolt flange
• Lubrication: Greasable
• Brand / Fitment: For Case IH

Ideal For

• Replacing worn disc bearings on compatible Case IH discs and tillage equipment
• Applications needing a 1-3/4" round bore with a 4-bolt riveted flange
• Farm operators who prefer greasable bearings for serviceable longevity
• Disc harrows, vertical tillage tools, cultivators, rippers, and mulchers with listed OEM interchange numbers

Application

• Case IH
  • Disc Harrow: 122, 340, 345, 350, 370, 375, 3800, 3850, 3900, 3950, 475, 485, 496, 760, RMX340, RMX370
  • Field Cultivator: TGM200, TGMII, Tigermate 200
  • Mulcher: 4200, 4400, 4450
  • Ripper: 6810, 6814, 870
  • Vertical Tillage: 330, 335, 335VT
• Ford / New Holland
  • Disc Harrow: ST440
  • Field Cultivator: ST250
• International Harvester
  • Chisel Plow: 6000, 6500
  • Disc Harrow: 37, 46, 48, 60, 61, 120, 122, 130, 132, 150, 330, 350, 370, 470, 475, 480, 490, 496, 610, 760
  • Moldboard Plow: 55, 60
  • Mulcher: 315, 415

Interchanges

• SN3215 (AGCO)
• 737321R93 (CNH)
• 1132269R1 (CNH)
• 1132269R91 (CNH)
• ST491A (CNH)
• ST491A-IMP
• ST491AIMP
• AST491AIMP
• PMFD209RA
• FD209RA
• B153010
• B15-3010
• B153010
• 491A
• 3215