206KR7 Extended Inner Ring Agricultural Bearing ── 30mm x 62mm x 24mm (1.181" Bore) | Heavy-Duty Sealed Disc & Tillage Unit | Based on 6206 Variant | Replaces Timken Fafnir 206KR7 206KRR7, 6206VCE, 88506-BR, FS88506

⚙️ Technical Specifications & Brand Interchange Matrix

Bearing Part Number: 206KR7 / 206KRR7 (Extended Inner Ring Agricultural Unit)

Precise Physical Dimensions:

Inner Diameter (Bore - d): 30 mm (1.181 in)

Outer Diameter (OD - D): 62 mm (2.441 in)

Inner Ring Width (B): 24 mm (0.945 in)

Base Architecture Standard: 6206 Variant (Modified with an extended inner ring for enhanced shaft seating)

Major Brand & Agricultural Cross-References:

Timken / Fafnir: 206KR7, 206KRR7

Agricultural Equipment Interchanges: 6206VCE, 88506-BR, 8506-BR, FS88506

⚡ Structural Advantages & Heavy-Duty Performance

Extended Inner Ring Architecture: 24mm wide inner ring design distributes mechanical load over a larger shaft area, substantially reducing shaft wear and fretting corrosion under high operational torque.

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

Heavy-Duty Contact Sealing: Multi-lip contact rubber seals create an airtight barrier against moisture, mud, abrasive soil grit, and organic 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 heavy soil impact.

🚜 Agricultural Machinery Deployment & Usage Scenarios

Tillage & Soil Preparation Equipment: Ideal for heavy disc harrows, rotary tillers, seedbed conditioners, and subsoilers requiring a 30mm extended inner ring bearing.

Planters & Seeders: Essential heavy-duty drive and support bearing for row crop planters, grain drills, gauge wheels, and opener hubs.

Implement Shaft Drives: Suitable for general agricultural implement drive shafts, idler rollers, and PTO transmission support units.