Gear Trainer Demonstrator
Product Code : EL-AMLE-10627
Quick Answer: The Gear Trainer Demonstrator represents a typical variable-ratio vehicle gearbox, built as a simple three forward ratio and reverse sliding mesh box in which gear wheels of different sizes are engaged as required. Pulleys fitted with protractors on the input and output shafts let students determine and verify velocity and torque ratios, and the unit can be coupled to the Overdrive and Differential to represent a complete simple transmission system for classroom demonstrations and laboratory use.
Most road vehicles are fitted with variable-ratio gearboxes as a means of obtaining the best power application under varying road conditions. Fundamentally the gearbox consists of gear wheels of different sizes, which may be engaged as required, and this gearbox has been designed to represent a typical arrangement of a simple three forward ratio and reverse sliding mesh box. The unit may be used for classroom demonstrations and by students in the laboratory. Pulleys fitted with protractors are attached to the input and output shafts so that the student may determine and verify velocity and torque ratios, and the gearbox can be coupled to the Overdrive and Differential to represent a simple transmission system. The sliding mesh box, although it is still used on heavy commercial vehicles, is seldom found on modern cars, but its basic construction and operation are important from the student’s point of view as it represents the basic layout from which most modern gearboxes have been developed.
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Last Updated: September 2026
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