203KRR3 Bearing 15.951mm x 50.8mm x 15mm (5/8" Bore) | Heavy-Duty Sealed Planter & Implement Unit ── Fits John Deere JD8646, Case IH 47577176, New Holland 165484, Amadas 3010, Replaces BCA 203RR3, NTN SC0274LL2A

⚙️ Technical Specifications & OEM Interchange Matrix

Bearing Part Number: 203KRR3 (Heavy-Duty Agricultural Sealed Unit)

Precise Physical Dimensions:

Inner Diameter (Bore - d): 15.951 mm (0.628 in / approx. 5/8 in)

Outer Diameter (OD - D): 50.8 mm (2.000 in)

Width (B): 15 mm (0.591 in)

OEM Equipment Replacements:

John Deere OEM: JD8646, AE14807

Case IH / CNH OEM: 47577176

New Holland OEM: 165484

Amadas OEM: 3010

Brand Interchange Cross-Reference:

Fafnir / Timken: 203KRR3

BCA / Federal Mogul: 203RR3, 8984YY

Link-Belt: BS226119

NTN: SC0274LL2A

🛡️ 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 operation.

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

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

Precision Bore Fitment: Engineered to standard 15.951mm (5/8") tolerances, ensuring optimal shaft seating and minimizing vibration and fretting corrosion.

🚜 Agricultural Machinery Deployment & Usage Scenarios

John Deere, Case IH & New Holland Equipment: Direct fit replacement unit for John Deere planters, seed openers, gauge wheels, Case IH tillage machinery, and New Holland harvesting equipment.

Amadas Peanut Machinery: Essential replacement bearing for Amadas peanut combine pickers, diggers, and drive line assemblies.

Planters & Seeders: Ideal replacement for agricultural row crop planters, seed metering units, and drill machinery requiring a 15.951mm (5/8") bore bearing.