muffkoppling

Muffkoppling is a type of mechanical coupling used to connect two shafts, typically for transmitting torque. It consists of a sleeve or "muff" that fits over the ends of the two shafts. The connection is usually achieved by a key and keyway system, where a key fits into matching slots on both the shaft and the inside of the muff. Alternatively, some muffkopplings use clamping bolts or set screws to secure the shafts within the muff.

The primary purpose of a muffkoppling is to provide a simple and robust connection between shafts. They are often used in applications where a permanent or semi-permanent connection is required and where precise alignment is not critical. Muffkopplings are generally less expensive and easier to install than more complex coupling types. However, they offer limited ability to accommodate shaft misalignment, vibration, or shock loads. Due to their rigid nature, they can transmit vibrations directly between connected shafts.

Muffkopplings are commonly found in stationary machinery, agricultural equipment, and various industrial applications where simplicity and cost-effectiveness are prioritized. Their design makes them suitable for low-speed, high-torque applications. Maintenance typically involves ensuring the securing elements, such as keys or bolts, remain tight.