Rõngasratta

Rõngasratta is an Estonian term that translates to "gear ring" or "ring gear" in English. It is a specific type of gear that has teeth on the outer edge of a cylindrical or conical shape. Unlike other gears that might have teeth on a flat face or in a more complex pattern, the rõngasratta's teeth are arranged in a circular fashion around its perimeter. This design allows it to mesh with other gears, typically a pinion gear or another ring gear, to transmit rotational motion and torque.

The primary function of a rõngasratta is to change the speed and torque of rotating machinery. When a smaller gear (like a pinion) meshes with a larger rõngasratta, the output shaft rotates slower but with increased torque. Conversely, if a larger gear meshes with a smaller rõngasratta, the output shaft rotates faster with reduced torque. This principle is fundamental to the operation of many mechanical systems.

Rõngasratta are commonly found in various applications, including automotive transmissions, differential gears, industrial machinery, and even in some types of clocks and wind-up toys. Their robust design and ability to handle significant loads make them suitable for demanding environments. The precise manufacturing of the teeth is crucial for smooth and efficient operation, minimizing wear and noise. The term itself highlights the circular, ring-like structure of this essential mechanical component.