Detailed specifications and features of John Deere BWA disk for agricultural use

The John Deere BWA disk features durable 22-inch concave blades designed for uniform soil penetration and residue cutting. Its blade spacing of 7.5 inches ensures consistent tillage depth across varying field conditions, improving seedbed preparation.
Weight per disk section ranges between 3,000 and 4,200 pounds, depending on model configuration. This mass provides sufficient downforce to penetrate hard or compacted soils without requiring additional ballast.
The hydraulic folding system allows quick transport and easy adjustment of working width, which varies from 20 to 40 feet. This adaptability suits different tractor sizes and field layouts, optimizing field coverage and transport safety.
Maintenance involves regular blade inspection and lubrication of pivot points to extend operational life and reduce downtime. Replacement blades come in carbon or boron steel options, balancing longevity and cost.
Detailed Specifications of John Deere BWA Disk for Practical Use
Disc diameter: The BWA disk features a 20-inch diameter, which provides optimal soil penetration and residue cutting for varied field conditions.
Disc spacing: Each disc is spaced 9.5 inches apart, ensuring even soil coverage and efficient residue mixing without clogging.
Frame width options: Available in working widths ranging from 10 to 26 feet, allowing customization based on farm size and tractor capacity.
Weight per foot: Approximately 180 pounds per foot, contributing to consistent soil engagement and depth control.
Disc angle adjustment: The gangs offer manual angle settings between 10° and 20°, enabling adaptation to soil type and desired tillage intensity.
Hydraulic features: Equipped with hydraulic folding for transport and depth control, enhancing maneuverability and operational safety.
Blade material: High-carbon steel blades deliver durability and resistance to wear, reducing downtime caused by blade replacement.
Rolling components: Sealed bearings and heavy-duty hubs extend service intervals and protect against dust and debris.
Recommended tractor horsepower: The BWA disk performs well with tractors rated between 100 and 250 HP, depending on implement width and soil conditions.
Operational depth: Adjustable up to 8 inches, allowing users to tailor tillage depth for seedbed preparation or residue management.
Choosing the correct model and settings based on these specifications maximizes field performance and machine longevity.
Dimensions and Weight Parameters of John Deere BWA Disk Models
Choose the appropriate John Deere BWA disk model based on clear dimension and weight data to match your field and transport needs.
- Working Width: Models vary from 3.0 to 7.0 meters, allowing selection depending on field size and tractor compatibility.
- Transport Width: Transport widths range between 2.5 and 3.0 meters, enabling easier road movement and storage.
- Height: Typical height for folded units is around 2.8 meters, ensuring clearance under most farm structures.
- Weight: Depending on size, weights span from approximately 1,200 kg for smaller units up to 3,500 kg for the largest models, affecting towing requirements.
These parameters directly influence maneuverability and tractor power demands. Confirm the disk model fits your tractor’s lifting and towing capacity before purchase.
- Smaller models suit tractors with 100-140 HP.
- Mid-range models require tractors with 140-180 HP.
- Larger models call for tractors exceeding 180 HP.
Verify clearance dimensions if operating in areas with height restrictions. Weight impacts soil compaction and transport safety, so adjust ballast and tires accordingly.
Blade and Frame Design Features Impacting Soil Performance
The John Deere BWA disk uses concave blades with a diameter range typically between 20 and 24 inches, allowing precise soil penetration and cutting residue effectively. These blades are arranged with an aggressive offset angle, usually around 15 to 20 degrees, which enhances soil mixing and reduces compaction.
The frame features a heavy-duty tubular steel construction, ensuring rigidity under varying soil conditions and maintaining consistent blade depth. Spacing between gangs ranges from 7 to 10 inches, optimizing soil flow and preventing clogging during high-residue applications.
Blade notching varies by model but often includes scalloped or wavy edges, improving traction in tough soils and increasing soil turnover. The combination of blade design and gang angle creates effective soil slicing without excessive power draw.
Adjustable gang settings allow operators to customize penetration depth and soil disturbance according to field requirements. The frame incorporates flexible hitch points that stabilize the implement while allowing slight articulation, improving contour following and uniform soil engagement.
Overall, the BWA disk’s blade diameter, gang spacing, and frame robustness contribute directly to consistent soil aeration, residue incorporation, and seedbed preparation across diverse conditions.
Maintenance Guidelines and Replacement Parts for John Deere BWA Disks

Regularly inspect the disk blades for wear, cracks, or damage. Replace any blades that show significant thinning beyond 3 mm or have visible cracks to maintain soil penetration quality. Grease the hub bearings every 8 operating hours to prevent premature failure and ensure smooth rotation.
Check the gang bearings for play and noise; replace worn bearings immediately to avoid further damage to the disk gangs. Tighten all bolts and nuts on the frame and disk assemblies after the first 10 hours of use, then inspect them weekly during operation seasons.
Replace the disk blades with John Deere OEM parts matching the original diameter and thickness specifications to retain optimal performance. Use factory-approved hub seals and bearings to avoid contamination and extend service intervals.
Monitor the scrapers for proper adjustment and wear; replace scraper blades if they no longer maintain consistent contact with the disks, which can lead to clogging in sticky soil conditions. Store the disk sections in a dry environment after use to prevent corrosion and extend the lifespan of metal components.
Use recommended lubricants specified in the John Deere BWA disk manual, focusing on high-quality grease for hubs and bearings. Perform a thorough cleaning of the disks and frame after each use to remove soil and crop residue that accelerate wear.