Logass Trade Centre — Industrial Bearing & Engineering Solutions
Industry Guides

Belts and Chains for Agricultural Machinery

Which belts and chains suit threshers, combines, balers and rotavators.

Belts and chains drive threshers, harvesters, balers and processing machines. Each type has strengths, and the wrong one shows up as slip, breakage or noise in the field. This guide helps machine builders choose.

1. Classical and wedge V-belts for general drives

Classical V-belts are simple and common on general drives. Wedge belts carry more power in a smaller drive. Banded belts keep belts together on drives with pulsating load, such as threshers.

2. Hexagonal and variable speed belts for combines

Hexagonal belts drive from both faces, which suits serpentine drives with several pulleys turning in different directions. Variable speed belts work with adjustable pulleys to change speed.

3. Roller and attachment chains

Roller chains carry high torque at low speed and suit rotavator chain cases, balers and seeders. Attachment chains carry slats or tabs for elevators and conveyors. Match chain pitch and number to the sprockets.

4. Lubrication and protection

Chains need lubrication and guards that keep dust and mud out. Belts should be kept clean and dry, and tension checked after the first hours.

5. What to send for a quote

For belts, the belt code, number of belts and pulley sizes. For chains, the chain number, length in pitches and sprocket sizes. A photo or a sample of the old part helps us match it.

Key Takeaways

  • Wedge and banded belts suit compact or pulsating drives
  • Hexagonal and variable speed belts suit combines
  • Roller and attachment chains suit low-speed, high-torque drives
  • Send codes and sizes, or a sample, with the enquiry

This article is general guidance. For a recommendation for your own application, contact our engineering team. Belts and chains →

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