SLK7420 Agricultural Flanged Hub Bearing Unit ── M20 Threaded Female Shaft | 5" (127mm) OD | 4.17" (106mm) Bolt Circle (M12 Holes) | Heavy-Duty Disc Harrow & Seeder Unit | Fits Horsch 28071300 28085600 | Replaces PL-127, PL-127-G, PN60041, FRD027

⚙️ Technical Specifications & OEM / Brand Matrix

• Bearing Part Number: SLK7420 (Flanged Disc Hub Bearing Unit)

• Precise Physical & Structural Dimensions:

  • Shaft Thread Specification: M20 Threaded Female

  • Outer / Flange Diameter (OD - D): 5 in (127 mm)

  • Bolt Circle Diameter (PCD): 4.17 in (106 mm)

  • Mounting Hole Type: M12 Bolt Holes

• OEM Equipment Replacements:

  • Horsch OEM: 28071300, 28085600, 28077800, 28077900

• Industry Standard Cross-References:

  • Alternative Codes & Interchanges: PL-127, PL-127-G, PN60041, FRD027

⚡ Structural Advantages & Heavy-Duty Performance

• M20 Female Threaded Integrated Flange: Heavy-duty integrated 127mm flange hub with M20 female threaded shaft provides supreme torque transmission and rigid mounting stability without alignment deflection.

• Double-Row Angular Contact Core: Engineered with high-precision double-row ball geometry to maximize dynamic radial and axial thrust load capacities during deep soil penetration.

• Multi-Lip Cassette Sealing Barrier: Advanced multi-lip cassette rubber seals form a bulletproof shield against moisture, mud, slurry, and abrasive soil grit contamination.

• Maintenance-Free Synthetic Pre-Lubrication: Factory pre-filled with wide-temperature agricultural synthetic grease, eliminating routine field servicing and lube washout.

🚜 Agricultural Machinery Deployment & Usage Scenarios

• Horsch Tillage & Seeding Tools: Direct fit replacement flanged hub unit for Horsch Joker disc harrows, Pronto seed drills, and high-speed tillage machinery requiring a 106mm PCD M20 female unit.

• High-Speed Disc Harrows & Cultivators: Essential heavy-duty hub bearing assembly for opener discs, rolling coulters, and soil preparation equipment operating under intense soil resistance.

• Severe Duty Farm Implements: Ideal for heavy-duty soil conditioning machinery subjected to harsh dirt, wet field slurry, and high-speed operation.