204KRR3 Agricultural Bearing ── Heavy-Duty Sealed Planter & Disc Unit | 20mm x 47mm x 14mm (0.787" Bore) | Replaces Timken Fafnir 204KRR3, PEER 204KRR3, Link-Belt 204KRR3, Koyo 204KRR3, BCA BPC012GP

⚙️ Technical Specifications & Brand Interchange Matrix

Bearing Part Number: 204KRR3 (Heavy-Duty Sealed Agricultural Unit)

Precise Physical Dimensions:

Inner Diameter (Bore - d): 20 mm (0.787 in)

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

Width (B): 14 mm (0.551 in)

Major Brand Cross-References:

Timken / Fafnir: 204KRR3

PEER Bearing: 204KRR3

Link-Belt: 204KRR3

Koyo: 204KRR3

BCA / National: BPC012GP

⚡ 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: Advanced 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 20mm metric tolerances for optimal shaft seating, smooth rotation, and minimal fretting corrosion.

🚜 Agricultural Machinery Deployment & Usage Scenarios

Planters & Seed Drills: Essential replacement bearing for row crop planters, seed openers, gauge wheels, and disc coulter hub assemblies requiring a 20mm bore bearing.

Tillage Equipment: Compatible with rotary cultivators, rolling basket assemblies, and seedbed conditioners.

Farm Implement Drive Systems: Ideal for various agricultural seeding, planting, and tillage drive units requiring heavy-duty sealed protection.