205KRRB2 Agricultural Ball Bearing (7/8" Bore) ── 7/8" x 52mm x 15mm (22.225mm Bore) | Heavy-Duty Sealed Hex / Round Bore Planter & Tillage Unit | Fits John Deere JD9214 | Replaces Timken Fafnir 205KRRB2-22, PEER 205KRRB2-22, BCA H205-22

✦ Technical Specifications & OEM / Brand Matrix

Bearing Part Number: 205KRRB2 / 205KRRB2-22 (Heavy-Duty Agricultural Insert Bearing)

Precise Physical Dimensions:

Inner Diameter (Bore - d): 7/8 in (22.225 mm)

Outer Diameter (OD - D): 52 mm (2.047 in)

Outer Ring Width / Thickness (C): 15 mm (0.591 in)

OEM Equipment Replacements:

John Deere OEM: JD9214 (Common planter and tillage assembly reference)

Brand Interchange Cross-References:

Timken / Fafnir: 205KRRB2-22 (Core OEM specification with heavy-duty KRR seals)

PEER Bearing: 205KRRB2-22 (Agricultural insert series)

BCA / Hub City: H205-22 (Hex / Round insert equivalent)

⚡ Structural Advantages & Heavy-Duty Performance

Heavy-Duty KRR Multi-Lip Sealing: Premium multi-lip contact rubber seals form an airtight defensive shield against mud, water, fertilizer dust, and abrasive soil grit contamination.

Extended Service Life Core: High-precision chrome steel balls and raceways engineered to absorb continuous radial and axial shock loads during deep tilling and seeding.

Maintenance-Free Synthetic Pre-Lubrication: Factory pre-filled with high-grade wide-temperature agricultural synthetic grease, completely eliminating daily routine field maintenance and lube washout.

Vacuum-Degassed GCr15 Chrome Steel: Premium high-carbon chromium steel construction provides elevated dynamic load capacity and maximum resistance against operational fatigue.

🚜 Agricultural Machinery Deployment & Usage Scenarios

Planters & Seed Openers: Direct fit replacement for John Deere and other row crop planters, seed drills, and metering drive shafts requiring a 7/8" bore bearing.

Disc Harrows & Tillage Implements: Essential heavy-duty bearing unit for disc harrows, rolling coulters, and soil conditioning machinery operating under continuous field drag.

Implement Drives & Balers: Designed for demanding agricultural machinery operating under heavy soil drag, wet field slurry, and abrasive dirt exposure.