Agricultural Bearings & Housings

Maintenance-Free Mud-Proof Disc Harrow Bearing Hub Unit

Integrated heavy-duty 5-bolt flange bearing hub with cassette triple-lip seal for severe field tillage

Engineering & Metallurgy Overview

Designed to operate continuously without relubrication in severe mud, abrasive sand, liquid fertilizer, and rocky tillage conditions. Incorporates a specialized multi-lip cassette seal with integral steel flinger deflectors that lock out water and slurry, delivering an operational service life exceeding 100,000 hectares.

OEM Reference #
28077800280779005554502AH16773934630405Z11404
Material / MetallurgyHigh-Carbon Chromium Bearing Steel (GCr15 / 100Cr6) + Ductile Iron Housing (QT450-10)
Hardness ProfileBearing Rings & Balls HRC 60-64
Surface FinishCorrosion-Resistant Dacromet & Zinc Flake Coating (500h Salt Spray Test)
Minimum Order (MOQ)50 PCS
Production Lead Time15-20 Days
Factory Part No.BRG-HUB-2807
Instant RFQ Quote
🛡️ 12-Month Quality Guarantee📦 ISPM-15 Export Wooden Crate🚢 Mixed Container Consolidation
ISO 9001:2015 QC VERIFIEDMud-Proof
TRIPLE-LIP SEALED HUB
3D STEP / 2D DWG / PDF Available
100% CMM Toleranced

Key Manufacturing Highlights

  • Double-row angular contact ball bearings engineered for high simultaneous radial and tilting thrust loads
  • Hermetic cassette triple-lip seal with spring-energized contact preventing slurry ingress
  • Pre-packed with Mobil / Klüber extreme-pressure synthetic polyurea grease
  • Drop-in 5-bolt or 4-bolt flange mounting for rapid in-field disc gang maintenance

Technical & Metallurgical Specifications

Dynamic Load Rating (Cr)58.5 kN
Static Load Rating (Cor)44.0 kN
Bolt Circle Diameter (PCD)98 mm / 100 mm / 120 mm (5-Hole Pattern)
Sealing TechnologyMulti-stage cassette seal with outer labyrinth armor
Operating Temperature-30°C to +120°C
Unit Weight3.85 kg
Hardness RangeBearing Rings & Balls HRC 60-64
Quality Inspection StandardISO 9001:2015 · EN 10204 3.1 Spectrometer & 100% CMM Dimensional Check

Verified Equipment Fitment & Cross-Reference Applications

  • Horsch Joker RT, HD Compact Disc Cultivators
  • John Deere 2623, 2630 High-Speed Disc Harrows
  • Great Plains Turbo-Max & Discovator Series
  • LEMKEN Rubin 9 / 10 / 12 Disc Assemblies

OEM part numbers (28077800, 28077900, 5554502, AH167739, 34630405, Z11404) and brand names are referenced solely to verify dimensional interchangeability. Need custom bore, bolt pattern, or private-label laser marking? Explore our OEM Custom Tooling capabilities →

Export Protective Packaging & Global Shipping

Anti-Corrosion Sea-Freight Packaging

Every batch is treated with VCI vapor corrosion inhibitor oil, sealed inside anti-humidity polyethylene barrier bags, and palletized in fumigated ISPM-15 solid plywood crates with distributor barcode labels.

Incoterms & Container Consolidation

We ship FOB Qingdao / Shanghai / Ningbo, CIF major agricultural import ports, and DDP door-to-warehouse. Combine chopper knives, bearings, tillage blades, and PTO parts in a single mixed 20GP/40HQ container.

DIRECT FACTORY OEM/ODM|24-HOUR DFM & TOOLING ESTIMATE

Need Custom Agricultural Parts or Custom Casting / Forging Tooling?

Send us your CAD 2D/3D drawings (.step, .dwg, .pdf) or OEM sample specifications. Our engineering team provides detailed quotation and DFM analysis within 24 hours.

Strict NDA Confidentiality
Tooling & Sample in 15-20 Days
Full EN 10204 3.1 Material Test Reports
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