John Deere® Compatible Unloading Auger Intermediate Spline Repair Kit
Restore the integrity of your unloading system with this premium C&M Australian-made unloading auger spline repair kit. Specifically engineered for John Deere® combine harvesters, this kit provides a high-strength solution for repairing the critical junction between the inner and outer unloading augers.
A common failure point on John Deere® unloading augers is excessive wear between the male spline and female hub. This C&M kit is a high-performance alternative to standard components; the hub is nitride hardened for superior surface density and features a full-length internal spline. This extended wear design eliminates the weaknesses found in original equipment, ensuring a longer service life and more reliable grain discharge.
John Deere® Model Compatibility & Unique Solution
C&M Unique Product: This specific repair assembly is not available as a kit from John Deere® and is an exclusive C&M engineered solution.
Auger Spline Repair Compatibility: John Deere STS & S-Series
| Series |
Models |
Serial/Reference |
| John Deere® STS 70 Series |
9670 STS, 9770 STS, 9870 STS |
Standard Fitment |
| John Deere® S600 Series |
S660, S670, S680, S690 |
Standard Fitment |
| John Deere® S700 Series |
S760, S770, S780, S790 |
Standard Fitment |
Technical Specifications & Features
- Manufacturer: Proudly C&M Australian made in our Griffith factory.
- Hardening Process: Nitride Hardened surfaces for maximum friction resistance.
- Female Hub Specs: 1.25" x 9 Tooth (Dimensions: OD=2.675", L=2.00").
- Male Spline Specs: 1.25" x 9 Tooth with 1.250" hex bearing landing (Dimensions: OD=2.675", L=8.375").
- Design Advantage: Full-length hub spline for increased load distribution and extended wear.
- Dispatch: Available for fast Australia-wide shipping from Collier & Miller.
Expert Maintenance Review
The intermediate spline joint is subject to extreme torque and vibration during the high-speed unloading process. Once the spline begins to develop "play," the wear accelerates rapidly, eventually leading to a complete loss of drive to the outer auger. We recommend inspecting this joint for backlash during every preventative maintenance cycle.
Upgrading to this nitride hardened repair kit is a high-performance choice that significantly outperforms original hardware. By providing a full-length spline engagement, this kit keeps your unloading system in top condition, preventing mid-harvest failures and ensuring your machine maintains peak unloading capacity throughout the season.
Installation Tip
When fitting the new spline and hub, ensure the 1.250" hex bearing is in good condition. A worn bearing can cause shaft misalignment, which will place uneven load on the new splines. Replacing the hex bearing at the same time as this repair kit ensures a high-strength connection and total drive system reliability.