Rotary Rake Gearbox K-791A 7.2:1 Replacement of Comer Gearbox

The Rotary Rake Gearbox K-791A 7.2:1 is a high-performance replacement gearbox designed specifically to replace the Comer Gearbox in rotary rakes. It is engineered to provide reliable power transmission and efficient operation in agricultural machinery, particularly in hay rakes and other crop management equipment. Featuring a gear ratio of 7.2:1, this gearbox is optimized to deliver precise torque and rotational speed, ensuring consistent and even raking performance across diverse field conditions.

Product Specifications

Product Description
Rotary Rake Gearbox K-791A 7.2:1 Replacement of Comer Gearbox
Product details
  • All gearboxes are supplied without oil.
  • First, the oil change after 50-70 operating hours, then after 500-700 operating hours or at least once a year.
  • Contact us for power at a different RPM.
Model
K-791A
Input RPM
540
Output torque (daNm)19
Contains oil
No
Oil SAE viscosity grade
SAE.90 EP
Number of arms
9
Diameter rotor
2.8 m
Gear ratio
7.2:1
Input shaft
1 3/8 Z6
Shaft type
1 x 1.3/8 (Z6)
Weight
75Kg

Note: Our products are replacement parts and not original equipment. We provide perfect replacement products for original equipment. If you need to purchase the original equipment, please contact the original supplier.

Overview of Rotary Rake Gearbox K-791A 7.2:1 Replacement of Comer Gearbox

The Rotary Rake Gearbox K-791A 7.2:1 is a high-performance replacement gearbox designed specifically to replace the Comer Gearbox in rotary rakes. It is engineered to provide reliable power transmission and efficient operation in agricultural machinery, particularly in hay rakes and other crop management equipment. Featuring a gear ratio of 7.2:1, this gearbox is optimized to deliver precise torque and rotational speed, ensuring consistent and even raking performance across diverse field conditions.

Constructed with durability in mind, the K-791A gearbox is made from high-quality materials to withstand heavy-duty usage and resist wear caused by exposure to dirt, debris, and moisture. Its robust housing protects the internal components, such as gears and bearings, ensuring long-term performance with minimal maintenance. Ideal for farmers and equipment operators, the K-791A gearbox enhances the efficiency and reliability of rotary rakes, ensuring smooth operation and improved productivity in agricultural tasks.

Rotary Rake Gearbox K-791A

Applications of Rotary Rake Gearbox K-791A 7.2:1 Replacement of Comer Gearbox

The Rotary Rake Gearbox K-791A 7.2:1, designed as a replacement for the Comer Gearbox, is an essential component in agricultural machinery, particularly for rotary rakes. Its primary application lies in the efficient management of hay and forage crops, where it facilitates the raking process by transmitting power from the tractor’s PTO (Power Take-Off) to the rake’s rotating arms. This gearbox ensures optimal torque and speed control, making it ideal for various agricultural operations that demand precision and durability.

In haymaking, the K-791A gearbox plays a critical role in creating uniform windrows, which are essential for efficient drying and baling. By maintaining a consistent 7.2:1 gear ratio, the gearbox allows the rake’s tines to move at an ideal speed, ensuring the crop is gathered cleanly without excessive damage or loss. This precision is particularly beneficial for farmers working with delicate forage crops like alfalfa or clover, where preserving nutritional quality is crucial.

Beyond hay production, the K-791A gearbox is also suitable for other applications involving crop residue management. For instance, it can be used in operations where straw or stubble needs to be gathered and arranged for further processing or removal. Its robust construction and resistance to wear make it capable of handling tough conditions, such as fields with uneven terrain, debris, or heavy crop loads.

Rotary Rake Gearbox Applications

Benefits of Rotary Rake Gearbox K-791A 7.2:1 Replacement of Comer

The Rotary Rake Gearbox K-791A replacement of Comer gearbox offers several benefits that can enhance the performance and reliability of agricultural rotary rakes:

  1. High Durability and Longevity: The K-791A is constructed with high-quality materials, ensuring exceptional durability and resistance to wear and tear caused by heavy-duty operation. Its robust housing protects internal gears from environmental factors like dust, moisture, and debris, making it highly reliable for long-term use in demanding agricultural applications.
  2. Optimal Gear Ratio for Precision Raking: With a 7.2:1 gear ratio, the gearbox provides precise rotational speed and torque, allowing rotary rakes to perform efficiently. This ensures uniform windrows, reducing crop loss and improving the quality of hay or forage. The optimized gear ratio is especially important for delicate crops like alfalfa, where preserving nutritional content is critical.
  3. Enhanced Efficiency for Agricultural Operations: The K-791A gearbox ensures smooth and even power transmission, reducing energy loss and improving overall efficiency. By enabling rotary rakes to operate at peak performance, farmers can complete tasks faster and more effectively, especially during harvest seasons when time is of the essence.
  4. Versatility Across Applications: The K-791A is not only used for haymaking but also for other crop residue management tasks, such as raking straw or stubble. Its adaptability makes it suitable for various field conditions, including uneven terrain and heavy crop loads, providing farmers with a multifunctional solution.
  5. Improved Crop Quality and Yield: By enabling precise raking, the gearbox ensures that crops are gathered cleanly and evenly, preserving their quality. Uniform windrows improve drying efficiency, leading to better baling and storage. This is particularly advantageous for preserving the nutritional value of forage crops, increasing the overall yield.

Rotary Rake Gearbox Applications

How to Replace a Damaged Rotary Rake Gearbox K-791A in Rotary Rake

To replace a damaged Rotary Rake Gearbox K-791A in a rotary rake, follow these steps:

  1. Disconnect the Power Source: Ensure the rotary rake is completely disconnected from the tractor or power source to prevent accidental activation. This step is crucial for safety during the replacement process. Once disconnected, lower the rake to a stable position to access the gearbox easily without strain or instability.
  2. Drain the Gearbox Oil: Place an oil pan beneath the damaged gearbox and carefully remove the drain plug to empty the oil. Properly dispose of the used oil according to local regulations. This step prevents spillage during gearbox removal and ensures clean installation with fresh oil for the new unit.
  3. Remove the Damaged Gearbox: Detach the bolts and fasteners securing the damaged gearbox to the rotary rake. You may also need to disconnect the PTO shaft and any additional linkages attached to the gearbox. Use a lifting device for heavy gearboxes to avoid injury or damage to surrounding components.
  4. Inspect Surrounding Components: Before installing the replacement, inspect the mounting area, PTO shaft, and linkages for wear or damage. Clean the area thoroughly to remove debris, dirt, and old grease. Replace any worn or damaged parts to ensure the new gearbox functions optimally and to prevent future issues.
  5. Install the Replacement Gearbox: Position the K-791A replacement gearbox in place and secure it using the appropriate bolts and fasteners. Ensure that the gearbox is properly aligned with the PTO shaft and other components. Tighten all bolts evenly to prevent misalignment or vibration during operation.
  6. Refill with Oil: Refer to the K-791A gearbox’s specifications to determine the correct type and amount of oil required. Refill the gearbox with fresh oil through the designated fill port. Proper lubrication is essential for smooth operation and to extend the life of the replacement gearbox.
  7. Test the Gearbox and Final Adjustments: Reconnect the rotary rake to the tractor or power source and perform a test run. Observe the gearbox for any abnormal noise, vibrations, or leaks. If everything operates smoothly, tighten any remaining bolts and make final adjustments to ensure the gearbox is functioning as intended.

Rotary Rake Gearbox

Agricultural PTO Shaft for Rotary Rake Gearbox

The Agricultural PTO (Power Take-Off) Shaft and the Rotary Rake Gearbox are essential components in modern agricultural machinery, working together to ensure efficient power transmission and seamless operation. The PTO shaft serves as the connection between the tractor and the rotary rake, transferring mechanical power from the tractor’s engine to the implement. This power is then delivered to the rotary rake gearbox, which modulates and distributes it to the rake’s operational components.

The PTO shaft is responsible for transmitting rotational energy from the tractor at a standard speed, typically 540 or 1,000 RPM. However, the rotary rake cannot operate directly at this speed. This is where the rotary rake gearbox comes into play. The gearbox adjusts the speed and torque received from the PTO shaft, ensuring that the rotary rake’s tines rotate at the optimal speed to create uniform windrows. For example, the K-791A gearbox, with its 7.2:1 gear ratio, reduces the PTO shaft’s input speed to a level suitable for precision raking.

The connection between these two components is critical for proper operation. The PTO shaft must be correctly aligned and securely attached to the tractor and gearbox to avoid power loss, vibration, or damage. The gearbox, on the other hand, must be robust enough to handle the torque and rotational forces transmitted through the PTO shaft, ensuring reliable performance even under heavy loads or challenging field conditions.

Together, the PTO shaft and rotary rake gearbox enable agricultural equipment to efficiently manage tasks like hay raking. This partnership ensures clean crop gathering, improved drying, and higher-quality baling, ultimately optimizing productivity and reducing labor time for farmers. Proper maintenance of both components is crucial to prevent downtime and extend the lifespan of the machinery.

Rotary Rake Gearbox

Why Choose AGKNX's Rotary Rake Gearbox?

AGKNX is a prominent manufacturer of high-performance rotary rake gearboxes for a variety of applications. Our gearboxes are designed to meet the needs of different agricultural settings, providing reliable and efficient performance. Our rotary rake gearboxes are a powerful replacement option for Bush Hog, Comer, Omni Gear, Land Pride, John Deere, Kodiak, Hico/Howse, and other brands of gearboxes.

Our technical staff can reconfigure an existing design or assist you in designing a custom rotary rake gearbox if a standard or existing design does not fit your application. Shaft rotation, speed ratio, input speed, output speed, input torque, output torque, mounting position, and the application's environment are all considerations when choosing an agricultural gearbox. If you want to buy a rotary rake gearbox, please get in touch with us.

At AGKNX, we take pride in our commitment to quality, selection, competitive pricing, excellent customer service, fast delivery, and customization. Our customers trust us to provide them with high-quality products that perform at a top level and meet their unique needs.

Quality Products

Our products are crafted with precision and high-quality materials to ensure durability and performance. We adhere to stringent quality standards, ensuring each part meets the demands of rigorous agricultural operations. Our rotary rake gearbox K-789C 7.2:1 replacement of Comer gearbox is a fine example of our commitment to quality.

Wide Range of Products

We offer an extensive selection of aftermarket spare parts for leading agricultural machinery brands. Our diverse product range meets the varied needs of farmers and businesses worldwide. In addition to our rotary rake gearboxes, we offer other agricultural gearboxes, such as flail mower gearboxes, post hole digger gearboxes, and finishing mower gearboxes. We also offer other spare parts such as PTO shafts, impellers, and gear sets.

Competitive Prices

We provide top-quality products at competitive prices, offering exceptional value without compromising on quality. Our efficient manufacturing and strategic partnerships help keep costs low. We believe that quality should not come at a premium price, and our rotary rake gearbox K-789C 7.2:1 replacement of Comer gearbox is priced competitively.

Excellent Customer Service

Customer satisfaction is our priority. Our dedicated team is ready to assist with inquiries, orders, and technical support. We focus on building long-term relationships through personalized service and expert advice. Our staff is knowledgeable and experienced, and we are committed to providing the best customer service possible.

Fast Delivery

We understand the importance of timely delivery in agriculture. Our efficient logistics network ensures that orders are delivered promptly, minimizing downtime during critical operations. We work hard to ensure that our products are delivered on time.

Customization Products

We offer tailored solutions by welcoming customer specifications and designs. Provide drawings or samples, and our expert team will create customized parts to meet your unique needs, ensuring optimal performance. Our team has the expertise and experience to create custom rotary rake gearboxes that meet your specific requirements.

Rotary Rake Gearbox

Additional information

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