204KRD4 Agricultural Bearing ── 15.875mm x 47mm x 14mm (5/8" Bore) | Heavy-Duty Sealed Planter & Disc Opener Unit | Fits White Planters 300279B W247167B1, Tye Drills 552-202, Massey Ferguson PS01108, Clark 65108539

✦ Technical Specifications & OEM Interchange Matrix

• Bearing Part Number: 204KRD4 (Heavy-Duty Sealed Planter & Disc Unit)

• Precise Physical Dimensions:

  • Inner Diameter (Bore - d): 15.875 mm (0.625 in / 5/8 in)

  • Outer Diameter (OD - D): 47 mm (1.850 in)

  • Width (B): 14 mm (0.551 in)

• OEM Equipment Replacements:

  • White Planters (AGCO) OEM: 300279B, W247167B1 (White 3405, 3407, 3408 Air Planters; 90 Series disc openers)

  • Tye Grain Drills OEM: 552-202, A-552202IMP

  • Massey Ferguson OEM: PS01108

  • Clark Equipment OEM: 65108539

⚡ 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 15.875mm (5/8") tolerances for optimal shaft seating, smooth rotation, and minimal fretting corrosion.

🚜 Agricultural Machinery Deployment & Usage Scenarios

• White Planters & AGCO Equipment: Direct fit replacement component for White 3405, 3407, 3408 Air Planters, 90 Series disc opener assemblies, and seed metering systems.

• Tye Grain Drills & Massey Ferguson: Essential replacement bearing for Tye grain drill openers, seed drills, and Massey Ferguson planting implements.

• Planters & Seed Openers: Ideal for row crop planters, gauge wheels, and disc coulter hub assemblies requiring a 5/8" bore bearing.