kedjedriven

Kedjedriven is a drive system that transmits mechanical power through a chain engaging with sprockets to rotate shafts. The term is common in Swedish engineering contexts; in English, the concept is usually called a chain drive or chain-driven system. The basic principle is positive engagement between chain links and sprocket teeth, producing a fixed speed ratio between input and output shafts.

A roller chain is the most common form in kedjedriven configurations. It consists of linked inner and outer plates connected by pins and rollers that wrap around sprockets. The chain pitch, roller size, and sprocket tooth profile determine load transfer and wear patterns. Correct tension prevents slip and reduces wear, while lubrication minimizes friction, corrosion, and noise.

Advantages include high torque capacity, robustness, and compactness for a given power level. Chain drives handle larger loads and moderate shaft misalignment well, and they are relatively inexpensive with widely available parts. Disadvantages include noise, regular maintenance needs, lubrication requirements, and wear of chains and sprockets, especially under high-speed or high-load conditions.

Applications span bicycles and motorcycles, industrial conveyors, and various types of machinery in manufacturing and automation. In automotive engineering, timing chains connect crankshafts and camshafts to maintain valve timing, representing a precise chain-driven variant used for synchronization.

Design and maintenance considerations include selecting the correct chain pitch and width, ensuring proper tension, maintaining lubrication, and aligning shafts. Regular inspection for chain elongation and sprocket wear helps prevent unexpected failures and extending component life.