W210PPB4 Heavy-Duty Agricultural Disc Bearing 28.575mm x 90mm x 30.175mm | Relubricable Tillage Bearing Fits Amco G10446, G10778, Replaces Timken W210PPB4, BCA DS210TT4, NTN 3AS10-1-1/8

⚜️ Technical Specifications & OEM Interchange Matrix

Bearing Part Number: W210PPB4 (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): 90 mm (3.543 in)

Inner Ring Width (B): 30.175 mm (1.188 in)

OEM Equipment Part Numbers:

Amco OEM: G10446, G10778

Brand Interchange Cross-Reference:

Fafnir / Torrington / Peer: W210PPB4

BCA / Federal Mogul: DS210TT4

Link Belt: 18S3-210E3

NTN: 3AS10-1-1/8

💎 Structural Advantages & Heavy-Duty Performance

Relubricable System: Outer ring features grease lubrication holes, allowing routine field maintenance flushing to purge contaminants and significantly extend bearing service life.

Heavy-Duty Multi-Lip Sealing: Advanced contact rubber seals create a robust, airtight barrier against moisture, mud, abrasive soil, and fertilizer residue during continuous tilling.

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

Precision Bore Fitment: Standard 1-1/8" round bore provides optimal shaft seating, minimizing fretting corrosion and vibration under severe field loads.

🚜 Agricultural Machinery Deployment & Usage Scenarios

Amco Equipment Maintenance: Direct fit replacement component for Amco disc harrow gang bolt assemblies and shaft units.

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

1-1/8" Shaft Implements: Designed for agricultural equipment requiring a 1-1/8 inch round bore insert bearing.

Gang Shaft Overhauls: Essential replacement unit for agricultural gang shaft rebuilds and field repair operations.