Used Forward Drive Variable Speed Units for Agricultural Equipment

On harvesting machines — combines, mowers, or forage harvesters — the forward drive variable speed unit directly controls the operating speed based on harvest conditions. A worn component results in irregular operation, or even a complete stop during the season.

Choosing a reconditioned used part allows you to significantly reduce refurbishment costs, sometimes up to 50% compared to the manufacturer's new part price. This is a practical way to maintain farm profitability without compromising quality.

Before placing an order, three key points should be checked:

• The manufacturer's reference to ensure exact compatibility with your model
• The mechanical condition of the associated pulleys and belts
• The type of control: mechanical, hydraulic, or electro-hydraulic

Our Catalog of Available Used Variable Speed Units

• Our inventory covers references for major brands such as Claas, John Deere, New Holland, and Case IH.
• The available variable speed units fit both combines and self-propelled forage harvesters.
• Each part is identified by its serial number to facilitate finding the correct model for your machine.
• The catalog is regularly updated based on stock arrivals, with quick shipping times.
• Some rare or older references are available on request after verification by our teams.
• For any inquiries, our technical team can guide you to the correct reference by phone at 05 86 24 00 26.
• Parts are stored in our warehouses in France, ensuring controlled delivery times.

Which Forward Drive Variable Speed Unit Should You Choose for Your Machine?

The choice mainly depends on the type of machine and its transmission system. On a combine harvester, the forward drive variable speed unit is generally electro-hydraulically controlled, while older mowers often operate with a purely mechanical system using belts and conical pulleys.

Engine power and cutting width are also factors. A high-capacity self-propelled forage harvester requires a different variable speed unit than a compact 3-meter machine.

Verifying the OEM manufacturer reference remains the most reliable method to avoid any compatibility errors. If in doubt, the machine’s serial number allows precise identification of the appropriate part, preventing confusion between different generations of the same model.

Combine Threshing Drum and Fixed Flange

• The threshing drum is the core component of the threshing system, separating grains from the ears at high speed.
• The fixed flange forms the lateral frame of the variable speed unit, holding the conical pulleys in the correct position.
• A cracked or deformed flange causes pulley misalignment, creating abnormal vibrations during threshing.
• On Claas Lexion combines, the fixed flange undergoes high mechanical stress under heavy loads.
• Replacing a used fixed flange restores the original geometry of the variable speed unit at a reasonable cost.
• Wear on the threshing drum and flange is often linked: checking both components simultaneously avoids a second intervention.
• A visual inspection of the fixed flange at the start of each season reduces the risk of breakdown during harvest.

Tested, Guaranteed, and Ready-to-Install Parts

Every forward drive variable speed unit sold by TMC Bejenne undergoes a systematic technical inspection before shipment: checking pulley condition, mechanical play, integrity of flanges and belts. No part leaves our warehouses without approval from our technicians.

This diligence is reflected in a solid warranty on used parts, giving you security comparable to a new component at a fraction of the cost. A breakdown during harvest costs far more than a replacement part.

Shipped units are packed to prevent any damage during transport, with technical documentation included to facilitate installation. For any questions before or after receipt, our technical team is reachable at 05 86 24 00 26.