Modern compact disc harrows operate at 12–20 km/h in heavy residue and liquid manure, generating intense axial thrust on bearings and rapid wear on disc edges. We pair 30MnB5 through-hardened concave boron steel discs with hermetic 6-lip cassette-sealed maintenance-free bearing hubs to deliver zero-greasing reliability across 100,000+ hectares.
Integrated heavy-duty 5-bolt flange bearing hub with cassette triple-lip seal for severe field tillage
Triple-lip sealed deep groove ball bearing engineered for high radial tillage shock loads and dust exclusion
Through-hardened 30MnB5 aggressive notched disc blade for European high-speed compact disc cultivators
Direct replacement cross-reference numbers, base metallurgy, and factory minimum order quantities (MOQ). All OEM part numbers and brand names are used strictly for fitment identification.
| Factory SKU | Part Description | OEM Cross-Reference # | Material / Hardness | MOQ | Action |
|---|---|---|---|---|---|
BRG-HUB-2807 | Maintenance-Free Mud-Proof Disc Harrow Bearing Hub Unit | 28077800280779005554502AH167739 | Bearing Rings & Balls HRC 60-64 | 50 PCS | Quote → |
BRG-HEX-205K | Heavy-Duty Square & Hex Bore Agricultural Bearing (GW209 / 205KRRB) | 205KRRB2GW209PPB13AA28184AA28186 | HRC 61-65 | 200 PCS | Quote → |
TIL-DSC-620B | Notched Boron Steel Concave Disc Harrow Blade (510mm / 620mm / 736mm) | 3490465349046928071402820-259C | HRC 48-52 Uniform Through-Hardness | 100 PCS | Quote → |
Yes. Many tillage distributors order palletized rebuild kits containing the notched boron disc blade, 5-bolt maintenance-free hub unit, O-ring seal, and Dacromet-coated Grade 10.9 countersunk flange bolts.