Lemken Rubin and Heliodor compact disc harrows rely on aggressive concave disc geometry and zero-play hub bearings to mix heavy corn residue in a single pass. Direct Agri Parts supplies 510 mm, 620 mm, and 736 mm through-hardened 30MnB5 boron steel notched discs, maintenance-free 5-bolt hub assemblies, and forged plough shares engineered for exact European bolt-circle fitment.
Integrated heavy-duty 5-bolt flange bearing hub with cassette triple-lip seal for severe field tillage
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 → |
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. Every concave disc blade is CNC-punched and hot-formed in dedicated curvature dies with precision countersunk mounting holes and HRC 48–52 uniform hardness to prevent bolt-hole ovality under rock impact.