Replacement disc blades that fit the Lemken Rubin 9 Compact Disc Harrow. In stock, ships from Ames, Iowa. Free shipping on orders $600+. Call the concierge line at 515-686-5575 with your serial number if you're not sure which blade you need.
Lemken Rubin 9 blade fitment at a glance
- Machine family: Compact Disc Harrow
- Common blade sizes: 18", 20"
- Edge configuration: notched (aggressive residue-cutting front-gang blades)
- Typical axle bore: 1-1/8" sq
Shop Lemken Rubin 9 blades by size
- 18" blades — in stock
- 20" blades — in stock
Ordering the right blade for your Lemken Rubin 9
To be certain the blade you order fits, verify three specs on your worn blade before ordering:
- Outside diameter — measure across the full width of the blade in inches. Blades wear from the outside in, so measure a low-wear reference blade if possible.
- Axle bore — 1-1/8" sq is standard for the Lemken Rubin 9, but confirm on your machine.
- Edge profile — notched (aggressive residue-cutting front-gang blades). Match what came off, unless you're intentionally changing edge to change residue behavior.
If any of those are unclear, call 515-686-5575 and we'll match a blade from stock.
Other Lemken models we cover
Related resources
- Lemken disc blades collection
- All disc blades for sale — full catalog
- How to size disc blades — blade sizing guide
- Notched vs. smooth disc blades
- When to replace disc harrow blades
Frequently asked questions
What size disc blades fit the Lemken Rubin 9?
The Lemken Rubin 9 (Compact Disc Harrow) typically runs 18", 20" blades depending on the gang and configuration. Confirm by measuring the outside diameter of a worn blade on your machine, or call 515-686-5575 with your model serial and we'll match it.
Are these OEM Lemken blades?
No — these are premium replacement disc blades manufactured to fit the Lemken Rubin 9. They match OEM dimensions, edge profile, and axle bore, and are drop-in replacements. DiscBladesForSale.com is not affiliated with Lemken.
What edge should I use — notched or smooth?
On a compact disc harrow like the Lemken Rubin 9, the standard configuration is notched (aggressive residue-cutting front-gang blades). If you're running heavy corn stalks or no-till, run notched on the front gangs. If soil finish matters more than residue cut, run smooth.
DiscBladesForSale.com is not affiliated with, endorsed by, or sponsored by Lemken. "Lemken" and "Rubin 9" are trademarks of their respective owners, referenced here only to describe blade fitment.