GW208PPB8 Heavy-Duty Agricultural Disc Bearing 28.575mm x 80mm x 36.52mm | Relubricable Tillage Bearing Fits John Deere JD8565, Replaces Timken GW208PPB8, BCA DS208TTR8, NTN 2AS08-1-1/8D1, Link Belt 18SG2-2E08E3

🔩 Technical Specifications & Cross-Reference Matrix

Bearing Part Number: GW208PPB8 (Relubricable Heavy-Duty Disc Bearing)

Precise Physical Dimensions:

Inner Diameter (Bore - d): 28.575 mm (1.125 in / 1-1/8 in)

Outer Diameter (OD - D): 80 mm (3.150 in)

Inner Ring Width (B): 36.52 mm (1.438 in)

OEM Part Number Replacements:

John Deere OEM: JD8565

Brand Interchange Cross-Reference:

Fafnir / Timken: GW208PPB8

BCA / Federal Mogul: DS208TTR8

NTN: 2AS08-1-1/8D1

Link Belt: 18SG2-2E08E3

🛡️ Construction Advantages & Structural Features

Relubricable Structural Feature: External grease lubrication holes on the outer ring allow routine flushing during field maintenance, removing dirt and significantly extending bearing service life.

Heavy-Duty Multi-Lip Sealing: High-performance contact rubber seals create a robust defense against abrasive soil, dust, mud, moisture, and crop residue during continuous tillage.

Vacuum-Degassed GCr15 Chrome Steel: Manufactured from premium high-carbon chromium steel for maximum dynamic load rating and high fatigue resistance under heavy radial stress.

Pre-Greased & Field-Ready: Pre-packed at the factory with high-grade, wide-temperature agricultural grease for smooth operation right out of the box.

🌾 Agricultural Machinery Deployment & Usage Scenarios

Tillage Machinery: Heavy-duty disc harrows, deep plows, soil conditioners, and seedbed preparation equipment.

John Deere Field Machinery: Direct fit replacement for John Deere disc harrow gang bolt assemblies and shaft units.

Gang Shaft Maintenance: Ideal replacement unit for agricultural shaft rebuilds, gang bolt assemblies, and heavy field repairs.