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Product Advantage
The Tension Pulley Assy W5.0-03X-27-00 is a critical harvester spare part engineered for FM WORLD Ruilong Harvesters. As a key tension pulley assy for agricultural machinery, it plays a vital role in maintaining the performance of combine harvester transmission systems. This durable drive belt tensioner ensures stable operation of conveyor belts and chains, reducing downtime and extending the lifespan of harvesting equipment.
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Maintain appropriate tension on the drive belt or chain to prevent the belt from slipping, jumping, or loosening. | Ensure the stable operation of the crop, straw, cutting piece conveyor chain or belt during the operation of the cutting/feeding components. | Reduce vibration, extend the lifespan of transmission components, and prevent downtime due to malfunctions. | In the working environment (dust, mud, debris, strong vibration), the reliability of the tensioning wheel component affects the overall equipment efficiency. |

Technical Parameters
Crafted with high-quality materials, this harvester tension pulley features a robust wheel body designed to withstand harsh agricultural environments. The assembly includes a precision-engineered bearing system that minimizes friction and ensures smooth rotation. Its compact structure allows for easy installation on the header feeding structure of FM WORLD harvesters, with dimensions optimized to fit standard mounting points. The tension pulley assy incorporates a durable outer rim that resists wear and tear, even when exposed to dust, mud, and crop residues. It is designed to maintain consistent tension on drive belts or chains, preventing slipping or jumping during high-intensity harvesting operations. The component’s corrosion-resistant coating protects against moisture and debris, ensuring reliable performance in long-term use.
| ITEMS | DESCRIPTION |
| Name | Tension pulley assy |
| Code | W5.0-03X-27-00 |
| Weight | 9KGS |
| Size(mm) | Φ:280 φ:70 |
Product Uses
Installed on the header feeding structure of combine harvesters, this tension pulley assy maintains proper tension on conveyor belts and chains. It ensures crops are smoothly fed into the cutting and threshing mechanisms, preventing jams and improving harvesting efficiency.
Ideal for use in straw cutting or feeding systems, the tension pulley ensures consistent movement of belts and chains. It supports the seamless transfer of straw from the cutting area to processing components, reducing bottlenecks in the harvesting workflow.
In challenging agricultural settings—such as fields with dust, gravel, or residual straw—this heavy-duty tension pulley delivers reliable performance. It resists damage from foreign objects, minimizing downtime caused by component failure.
Specifically designed for FM WORLD Ruilong Harvesters, this spare part is a direct replacement for original components. It ensures compatibility with the harvester’s existing transmission system, eliminating the need for modifications.
As a essential agricultural machinery part, it serves as a critical replacement component for worn or damaged tension pulleys. Regular replacement of the tension pulley assy prevents excessive wear on other transmission parts, reducing long-term maintenance costs.

Product Operate Guide
Before installing the tension pulley assy, inspect the component for any signs of damage, such as cracks, worn bearings, or deformed rims. Check the mounting surface on the harvester to ensure it is flat and free of debris. Verify that all bolts and fasteners are in good condition and compatible with the assembly.
Align the tension pulley assy with the mounting points on the harvester’s header or feeding system. Secure the assembly using the recommended bolts, tightening them to the specified torque to ensure a stable fit. Adjust the tension arm to the correct position, ensuring the pulley maintains appropriate tension on the belt or chain without over-tightening.
Regularly clean the area surrounding the tension pulley to remove soil, dust, and crop residues. Use a soft brush or compressed air to clear debris from the bearing and wheel surface, preventing buildup that can cause friction or jamming. Inspect the pulley for signs of wear during each maintenance cycle, paying attention to the wheel surface and bearing performance.
Replace the tension pulley assy when bearings are severely worn, the wheel surface shows deep grooves, or belts frequently slip. If the adjustment arm has reached its limit and cannot maintain proper tension, a replacement is necessary to avoid damage to the harvester’s transmission system. Always use genuine FM WORLD harvester parts for replacements to ensure compatibility and performance.





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