203KR2 Agricultural Bearing ── 15.883mm x 40mm x 12mm (approx. 5/8" Bore) | Heavy-Duty Sealed Planter & Disc Unit | Fits John Deere AA82881 AN100425, Case IH 666624R1, Ford New Holland 222279, Great Plains 822-011C

✦ Technical Specifications & OEM Interchange Matrix

• Bearing Part Number: 203KR2 (Heavy-Duty Sealed Planter Bearing)

• Precise Physical Dimensions:

  • Inner Diameter (Bore - d): 15.883 mm (0.6253 in / approx. 5/8 in)

  • Outer Diameter (OD - D): 40 mm (1.575 in)

  • Width (B): 12 mm (0.472 in)

• OEM Equipment Replacements:

  • John Deere OEM: AA82881, AN100425

  • Case IH OEM: 666624R1

  • Ford / New Holland OEM: 222279

  • Great Plains OEM: 822-011C

⚡ Structural Advantages & Heavy-Duty Performance

• Maintenance-Free Sealed Protection: Factory pre-lubricated with high-grade wide-temperature agricultural grease, eliminating daily field greasing while preventing lubricant washout during heavy field operations.

• Heavy-Duty Multi-Lip Sealing: High-performance contact rubber seals create a solid barrier against moisture, mud, abrasive soil grit, and fertilizer dust contamination.

• Vacuum-Degassed GCr15 Chrome Steel: Manufactured from premium high-carbon chromium steel (AISI 52100) for maximum dynamic load capacity and superior fatigue resistance under continuous field shock.

• Precision Bore Alignment: Manufactured to exact 15.883mm tolerances for optimal shaft seating, smooth rotation, and minimal fretting corrosion.

🚜 Agricultural Machinery Deployment & Usage Scenarios

• John Deere, Case IH & Great Plains Equipment: Direct fit replacement component for John Deere row crop planters, seed openers, Case IH tillage machinery, and Great Plains grain drills.

• Planters & Seed Drills: Essential replacement bearing for row crop planters, seed openers, gauge wheels, and disc coulter hub assemblies requiring a 15.883mm (approx. 5/8") bore bearing.

• Ford / New Holland Machinery: Compatible with Ford and New Holland grain drills, seeders, and tillage attachments.