Innenrädern

Innenrädern is a term derived from German that translates to "internal gears." In a mechanical context, it refers to gears where the teeth are on the inside of a ring, rather than on the outside of a cylindrical gear. This internal gearing arrangement typically involves two meshing gears: an external gear (often called a pinion) and an internal gear (the ring). The teeth of the pinion engage with the internal teeth of the ring gear.

This type of gearing offers several advantages. It allows for a more compact design, as the overall diameter of the gear set can be smaller for a given gear ratio compared to external gearing. Internal gears also tend to be more durable and can handle higher loads because the contact area between the teeth is larger, and the forces are distributed more evenly. Furthermore, the enclosed nature of the internal gear can provide better protection against dirt and debris, leading to quieter operation and reduced wear.

Applications of internal gearing can be found in various mechanical systems. They are commonly used in planetary gear sets, which are fundamental to automatic transmissions and many other power transmission systems where high torque and compact size are required. Other uses include cycloidal drives, certain types of pumps, and some high-precision rotary actuators. The specific geometry of the teeth in internal gears is critical for efficient and smooth power transfer.