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Function
Product Description
This No.2 Miscellaneous Gearbox is a key auxiliary transmission assembly for LOVOL RG series combine harvesters. It receives power from the main engine and distributes torque to multiple auxiliary working mechanisms of the harvester, such as grain conveying, cleaning and threshing auxiliary components. It converts engine speed and torque to meet the required operating speed for supporting systems.
The gearbox housing adopts high-strength cast iron with integrated casting technology, good shock resistance and deformation resistance, adapting to continuous vibration and heavy load in field harvesting. Internal gears are carburized and quenched, with high surface hardness, strong wear resistance and stable meshing performance. Multiple oil seal design effectively prevents oil leakage, and stops dust, chaff and muddy water from entering the gearbox cavity, protecting internal bearings and gears.
All mounting hole positions, shaft diameter and transmission ratio are strictly consistent with OEM specifications. Direct bolt-on replacement without modification. When your original gearbox has oil leakage, abnormal noise, gear slipping or stuck output shaft, the auxiliary mechanisms will stop working, leading to grain blockage and harvest interruption. Replacing this gearbox before harvest can avoid unexpected field downtime and protect the whole harvester transmission system.
Suitable for agricultural machinery distributors, farm repair workshops, large grain farms and harvester rental fleets. Bulk wholesale is available for overseas dealers.
✅ OEM Part Number: RGV4302070040
✅ Exact fit for LOVOL RG series combine harvester
✅ Heavy-duty cast iron housing, shock-resistant for farm harsh conditions
✅ Hardened precision gears, low noise & long service life
✅ Multi-channel oil seal design, anti-leakage, dust & mud proof
✅ Stable power output for harvester auxiliary working parts
✅ Direct replacement, no cutting or welding required
✅ Strict factory inspection before shipment
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Accept power output from the main gearbox or engine and distribute/transmit it to auxiliary systems (such as header drive, conveyor mechanism, track/wheel walking mechanism, depending on the model) | By combining internal gears, the speed and torque can be adjusted to adapt to different working conditions (such as high-speed operation of the cutting table vs. low-speed movement) | Provide rigid connections and bearing support for branch transmission lines to ensure stable operation of auxiliary transmission systems under load |
Technical Parameters
No.2 Miscellaneous Gearbox
| ITEMS | DESCRIPTION |
| Code | RGV4302070040 |
| weight | 1.75kg |
| Application | LOVOL AF108/RG108 series (auxiliary gearbox part in gear/transmission system) |
Direct replacement for LOVOL original part number RGV4302070040
Reliable compatibility with AF108 / RG108 platforms
Ideal for maintenance, repair, and spare parts stocking
Helps restore machine efficiency and reduce downtime
Product Uses
This RGV4302070040 No.2 Miscellaneous Gearbox is used on LOVOL combine harvesters for grain harvesting.
Wheat, rice, soybean and rapeseed harvesting: Transmit power to auxiliary conveying and cleaning components to ensure continuous grain processing.
Long-hour continuous field operation: Stable performance under heavy vibration, straw debris, dust and muddy working environment during peak harvest.
Preventive maintenance: Replace aging gearbox before harvest season to avoid sudden failure during operation.
Emergency field repair: Quick replacement for gearbox oil leakage, gear damage and shaft seizure.
Spare parts inventory: Essential stocking item for agri-parts dealers, repair shops and harvester rental companies.
LOVOL AF108 Combine Harvester
LOVOL RG108 Combine Harvester
Compatible agricultural harvesting equipment using same gearbox layout
In the overall harvester drivetrain, the No.2 Miscellaneous Gearbox:
Transfers and redistributes engine power
Matches different working speeds for multiple attachments
Reduces load impact on the main gearbox
Ensures smoother and more stable machine operation
Product Operate Guide
Usage and maintenance suggestions
Check the oil level, oil leakage, abnormal noise or looseness of the gearbox before each season's operation.
Regularly replace the lubricating oil (it is recommended to use GL-4 or GL-5 heavy-duty gear oil according to the manufacturer's requirements).
Check if the installation bolts, key connections, and transmission shaft are worn.
If there is a decrease in cutting power, an increase in noise, or vibration during homework, the machine should be stopped in time to check the wear of the gears or damage to the bearings in the No. 2 miscellaneous gearbox
LOVOL AF108 / RG108 No.2 Miscellaneous Gearbox FAQ
Q1: Which harvester models does this No.2 Miscellaneous Gearbox fit?
A1: It is specially designed for LOVOL RG series combine harvesters, part number RGV4302070040. Please confirm your original part number before ordering for compatibility.
Q2: Is this original OEM gearbox?
A2: This is high-quality aftermarket replacement assembly. Housing dimension, gear ratio, bearing and sealing structure match OEM standard. Ready for direct installation without modification.
Q3: What are the typical failure signs of a bad miscellaneous gearbox?
A3: Abnormal knocking/grinding noise during operation, oil leakage from shaft ends, output shaft stuck or slipping, auxiliary conveyer/cleaning parts stop running. Replace the gearbox immediately once these symptoms occur.
Q4: Can I repair the old gearbox instead of buying a new assembly?
A4: If only oil seal or bearing is damaged, you can do maintenance. But if the gear teeth are broken or the housing cracks, repairing is not reliable. A complete new gearbox saves your precious harvest time.
Q5: How to extend the service life of the gearbox?
A5: Check lubricant oil level regularly, replace gear oil on schedule. Keep the gearbox surface clean, remove wrapped straw and debris. Avoid long-time overloading operation.
Q6: Do you support bulk wholesale for overseas dealers?
A6: Yes, we offer competitive bulk price for agricultural machinery distributors. Please contact us for wholesale quotation and lead time.
Q7: Any installation tips?
A7: Align the input and output shafts correctly during installation. Refill the proper grade of gear oil after assembly. Check for oil leakage after test run.
Product Video
